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Title: The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars

Abstract

Here, we report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo (GW170817) and as a short gamma-ray burst by Fermi Gamma-ray Burst Monitor (GBM) and Integral SPI-ACS (GRB 170817A). The evolution of the transient light is consistent with predictions for the behavior of a "kilonova/macronova" powered by the radioactive decay of massive neutron-rich nuclides created via r-process nucleosynthesis in the neutron-star ejecta. In particular, evidence for this scenario is found from broad features seen in Hubble Space Telescope infrared spectroscopy, similar to those predicted for lanthanide-dominated ejecta, and the much slower evolution in the near-infrared $${K}_{{\rm{s}}}$$-band compared to the optical. This indicates that the late-time light is dominated by high-opacity lanthanide-rich ejecta, suggesting nucleosynthesis to the third r-process peak (atomic masses $$A\approx 195$$). This discovery thus confirms that neutron-star mergers produce kilo-/macronovae and that they are at least a major—if not the dominant—site of rapid neutron capture nucleosynthesis in the universe.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [4];  [5];  [6]; ORCiD logo [7];  [8];  [9]; ORCiD logo [4];  [9]; ORCiD logo [7];  [1];  [2];  [4]; ORCiD logo [10];  [11]; ORCiD logo [8];  [12];  [13] more »;  [1]; ORCiD logo [4]; ORCiD logo [14];  [15];  [4]; ORCiD logo [16];  [7];  [2];  [17];  [10]; ORCiD logo [3];  [18];  [7]; ORCiD logo [10];  [2]; ORCiD logo [7]; ORCiD logo [3];  [8];  [1];  [1];  [19]; ORCiD logo [11]; ORCiD logo [19];  [20]; ORCiD logo [21];  [22];  [23];  [24];  [14];  [10];  [2]; ORCiD logo [7]; ORCiD logo [1];  [25] « less
  1. Univ. of Leicester (United Kingdom)
  2. Univ. of Warwick, Coventry (United Kingdom)
  3. Univ. of Cambridge (United Kingdom)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Univ. of Birmingham (United Kingdom)
  6. Stockholm Univ. (Sweden)
  7. Univ. of Copenhagen (Denmark). The Niels Bohr Inst.
  8. National Inst. for Astrophysics (INAF), Merate (Italy)
  9. Space Telescope Science Inst., Baltimore, MD (United States)
  10. Astrophysical Inst. of Andalusia, Granada (Spain)
  11. Liverpool John Moores Univ. (United Kingdom)
  12. Space Science Data Center, Rome (Italy); National Inst. for Astrophysics (INAF), Cantone (Italy)
  13. Univ. of Copenhagen (Denmark). The Niels Bohr Inst.; Astrophysical Inst. of Andalusia, Granada (Spain)
  14. Cardiff Univ. (United Kingdom)
  15. Univ. of St. Andrews, Scotland (United Kingdom)
  16. Univ. of Copenhagen (Denmark). The Niels Bohr Inst.; Nagoya Univ. (Japan)
  17. Max Planck Inst. for Extraterrestrial Physics, Garching (Germany)
  18. Univ. of Iceland, Reykjavik (Iceland)
  19. National Inst. for Astrophysics (INAF), Bologna (Italy)
  20. National Inst. for Astrophysics (INAF), Catone (Italy)
  21. Pontifical Catholic Univ. of Chile, Santiago (Chile)
  22. Monash Univ., Melbourne, VIC (Australia)
  23. Univ. of Amsterdam (Netherlands); Netherlands Inst. for Radio Astronomy, Dwingeloo (Netherlands)
  24. Weizmann Inst. of Science, Rehovot (Israel)
  25. Univ. of Amsterdam (Netherlands)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1407907
Report Number(s):
LA-UR-17-29025
Journal ID: ISSN 2041-8213; TRN: US1702928
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Letters (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal. Letters (Online); Journal Volume: 848; Journal Issue: 2; Journal ID: ISSN 2041-8213
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; kilonova, neutron star, merger, r-process, nucleosynthesis, lanthanides

Citation Formats

Tanvir, N. R., Levan, A. J., González-Fernández, C., Korobkin, O., Mandel, I., Rosswog, S., Hjorth, J., D’Avanzo, P., Fruchter, A. S., Fryer, C. L., Kangas, T., Milvang-Jensen, B., Rosetti, S., Steeghs, D., Wollaeger, R. T., Cano, Z., Copperwheat, C. M., Covino, S., D’Elia, V., de Ugarte Postigo, A., Evans, P. A., Even, W. P., Fairhurst, S., Jaimes, R. Figuera, Fontes, C. J., Fujii, Y. I., Fynbo, J. P. U., Gompertz, B. P., Greiner, J., Hodosan, G., Irwin, M. J., Jakobsson, P., Jørgensen, U. G., Kann, D. A., Lyman, J. D., Malesani, D., McMahon, R. G., Melandri, A., O’Brien, P. T., Osborne, J. P., Palazzi, E., Perley, D. A., Pian, E., Piranomonte, S., Rabus, M., Rol, E., Rowlinson, A., Schulze, S., Sutton, P., Thöne, C. C., Ulaczyk, K., Watson, D., Wiersema, K., and Wijers, R. A. M. J. The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars. United States: N. p., 2017. Web. doi:10.3847/2041-8213/aa90b6.
Tanvir, N. R., Levan, A. J., González-Fernández, C., Korobkin, O., Mandel, I., Rosswog, S., Hjorth, J., D’Avanzo, P., Fruchter, A. S., Fryer, C. L., Kangas, T., Milvang-Jensen, B., Rosetti, S., Steeghs, D., Wollaeger, R. T., Cano, Z., Copperwheat, C. M., Covino, S., D’Elia, V., de Ugarte Postigo, A., Evans, P. A., Even, W. P., Fairhurst, S., Jaimes, R. Figuera, Fontes, C. J., Fujii, Y. I., Fynbo, J. P. U., Gompertz, B. P., Greiner, J., Hodosan, G., Irwin, M. J., Jakobsson, P., Jørgensen, U. G., Kann, D. A., Lyman, J. D., Malesani, D., McMahon, R. G., Melandri, A., O’Brien, P. T., Osborne, J. P., Palazzi, E., Perley, D. A., Pian, E., Piranomonte, S., Rabus, M., Rol, E., Rowlinson, A., Schulze, S., Sutton, P., Thöne, C. C., Ulaczyk, K., Watson, D., Wiersema, K., & Wijers, R. A. M. J. The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars. United States. https://doi.org/10.3847/2041-8213/aa90b6
Tanvir, N. R., Levan, A. J., González-Fernández, C., Korobkin, O., Mandel, I., Rosswog, S., Hjorth, J., D’Avanzo, P., Fruchter, A. S., Fryer, C. L., Kangas, T., Milvang-Jensen, B., Rosetti, S., Steeghs, D., Wollaeger, R. T., Cano, Z., Copperwheat, C. M., Covino, S., D’Elia, V., de Ugarte Postigo, A., Evans, P. A., Even, W. P., Fairhurst, S., Jaimes, R. Figuera, Fontes, C. J., Fujii, Y. I., Fynbo, J. P. U., Gompertz, B. P., Greiner, J., Hodosan, G., Irwin, M. J., Jakobsson, P., Jørgensen, U. G., Kann, D. A., Lyman, J. D., Malesani, D., McMahon, R. G., Melandri, A., O’Brien, P. T., Osborne, J. P., Palazzi, E., Perley, D. A., Pian, E., Piranomonte, S., Rabus, M., Rol, E., Rowlinson, A., Schulze, S., Sutton, P., Thöne, C. C., Ulaczyk, K., Watson, D., Wiersema, K., and Wijers, R. A. M. J. Mon . "The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars". United States. https://doi.org/10.3847/2041-8213/aa90b6. https://www.osti.gov/servlets/purl/1407907.
@article{osti_1407907,
title = {The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars},
author = {Tanvir, N. R. and Levan, A. J. and González-Fernández, C. and Korobkin, O. and Mandel, I. and Rosswog, S. and Hjorth, J. and D’Avanzo, P. and Fruchter, A. S. and Fryer, C. L. and Kangas, T. and Milvang-Jensen, B. and Rosetti, S. and Steeghs, D. and Wollaeger, R. T. and Cano, Z. and Copperwheat, C. M. and Covino, S. and D’Elia, V. and de Ugarte Postigo, A. and Evans, P. A. and Even, W. P. and Fairhurst, S. and Jaimes, R. Figuera and Fontes, C. J. and Fujii, Y. I. and Fynbo, J. P. U. and Gompertz, B. P. and Greiner, J. and Hodosan, G. and Irwin, M. J. and Jakobsson, P. and Jørgensen, U. G. and Kann, D. A. and Lyman, J. D. and Malesani, D. and McMahon, R. G. and Melandri, A. and O’Brien, P. T. and Osborne, J. P. and Palazzi, E. and Perley, D. A. and Pian, E. and Piranomonte, S. and Rabus, M. and Rol, E. and Rowlinson, A. and Schulze, S. and Sutton, P. and Thöne, C. C. and Ulaczyk, K. and Watson, D. and Wiersema, K. and Wijers, R. A. M. J.},
abstractNote = {Here, we report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo (GW170817) and as a short gamma-ray burst by Fermi Gamma-ray Burst Monitor (GBM) and Integral SPI-ACS (GRB 170817A). The evolution of the transient light is consistent with predictions for the behavior of a "kilonova/macronova" powered by the radioactive decay of massive neutron-rich nuclides created via r-process nucleosynthesis in the neutron-star ejecta. In particular, evidence for this scenario is found from broad features seen in Hubble Space Telescope infrared spectroscopy, similar to those predicted for lanthanide-dominated ejecta, and the much slower evolution in the near-infrared ${K}_{{\rm{s}}}$-band compared to the optical. This indicates that the late-time light is dominated by high-opacity lanthanide-rich ejecta, suggesting nucleosynthesis to the third r-process peak (atomic masses $A\approx 195$). This discovery thus confirms that neutron-star mergers produce kilo-/macronovae and that they are at least a major—if not the dominant—site of rapid neutron capture nucleosynthesis in the universe.},
doi = {10.3847/2041-8213/aa90b6},
journal = {The Astrophysical Journal. Letters (Online)},
number = 2,
volume = 848,
place = {United States},
year = {Mon Oct 16 00:00:00 EDT 2017},
month = {Mon Oct 16 00:00:00 EDT 2017}
}

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  • Bulla, M.
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  • DOI: 10.1093/mnras/stz2495

Neutron star binary orbits in their host potential: effect on early r-process enrichment
journal, September 2019

  • Bonetti, Matteo; Perego, Albino; Dotti, Massimo
  • Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 1
  • DOI: 10.1093/mnras/stz2554

A multidimensional implementation of the Advanced Spectral neutrino Leakage scheme
journal, October 2019

  • Gizzi, D.; O’Connor, E.; Rosswog, S.
  • Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 3
  • DOI: 10.1093/mnras/stz2911

Non-thermal afterglow of the binary neutron star merger GW170817: a more natural modelling of electron energy distribution leads to a qualitatively different new solution
journal, February 2019

  • Lin, Haoxiang; Totani, Tomonori; Kiuchi, Kenta
  • Monthly Notices of the Royal Astronomical Society, Vol. 485, Issue 2
  • DOI: 10.1093/mnras/stz453

A multiwavelength analysis of a collection of short-duration GRBs observed between 2012 and 2015
journal, February 2019

  • Pandey, S. B.; Hu, Y.; Castro-Tirado, Ao J.
  • Monthly Notices of the Royal Astronomical Society, Vol. 485, Issue 4
  • DOI: 10.1093/mnras/stz530

A new delay time distribution for merging neutron stars tested against Galactic and cosmic data
journal, April 2019

  • Simonetti, Paolo; Matteucci, Francesca; Greggio, Laura
  • Monthly Notices of the Royal Astronomical Society, Vol. 486, Issue 2
  • DOI: 10.1093/mnras/stz991

A comparison between SALT/SAAO observations and kilonova models for AT 2017gfo: the first electromagnetic counterpart of a gravitational wave transient − GW170817
journal, December 2017

  • Buckley, David A. H.; Andreoni, Igor; Barway, Sudhanshu
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 474, Issue 1
  • DOI: 10.1093/mnrasl/slx196

Direct neutron capture cross section on Ge 80 and probing shape coexistence in neutron-rich nuclei
journal, October 2019


Improving the NRTidal model for binary neutron star systems
journal, August 2019


Inferring prompt black-hole formation in neutron star mergers from gravitational-wave data
journal, February 2020


The HabEx Ultraviolet Spectrograph (UVS): design and science drivers
conference, September 2019

  • Scowen, Paul A.; Martin, Stefan; Mayer, Rud
  • UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX
  • DOI: 10.1117/12.2531658

GW170817 --the first observed neutron star merger and its kilonova: Implications for the astrophysical site of the r-process
journal, November 2019


Background-limited Imaging in the Near Infrared with Warm InGaAs Sensors: Applications for Time-domain Astronomy
journal, January 2019

  • Simcoe, Robert A.; Fűrész, Gábor; Sullivan, Peter W.
  • The Astronomical Journal, Vol. 157, Issue 2
  • DOI: 10.3847/1538-3881/aae094

A Magnetar Origin for the Kilonova Ejecta in GW170817
journal, March 2018

  • Metzger, Brian D.; Thompson, Todd A.; Quataert, Eliot
  • The Astrophysical Journal, Vol. 856, Issue 2
  • DOI: 10.3847/1538-4357/aab095

Shock Acceleration of Electrons and Synchrotron Emission from the Dynamical Ejecta of Neutron Star Mergers
journal, May 2018

  • Lee, Shiu-Hang; Maeda, Keiichi; Kawanaka, Norita
  • The Astrophysical Journal, Vol. 858, Issue 1
  • DOI: 10.3847/1538-4357/aabaea

Three-dimensional GRMHD Simulations of Neutrino-cooled Accretion Disks from Neutron Star Mergers
journal, May 2018


A Long-lived Remnant Neutron Star after GW170817 Inferred from Its Associated Kilonova
journal, July 2018


On the Origin of Early Solar System Radioactivities: Problems with the Asymptotic Giant Branch and Massive Star Scenarios
journal, August 2018


The R -Process Alliance: A Comprehensive Abundance Analysis of HD 222925, a Metal-poor Star with an Extreme R -process Enhancement of [Eu/H] = −0.14
journal, October 2018

  • Roederer, Ian U.; Sakari, Charli M.; Placco, Vinicius M.
  • The Astrophysical Journal, Vol. 865, Issue 2
  • DOI: 10.3847/1538-4357/aadd92

Low-frequency View of GW170817/GRB 170817A with the Giant Metrewave Radio Telescope
journal, October 2018

  • Resmi, L.; Schulze, S.; Ishwara-Chandra, C. H.
  • The Astrophysical Journal, Vol. 867, Issue 1
  • DOI: 10.3847/1538-4357/aae1a6

From γ to Radio: The Electromagnetic Counterpart of GW170817
journal, October 2018


Neutron Star Mergers are the Dominant Source of the r -process in the Early Evolution of Dwarf Galaxies
journal, December 2018

  • Duggan, Gina E.; Kirby, Evan N.; Andrievsky, Serge M.
  • The Astrophysical Journal, Vol. 869, Issue 1
  • DOI: 10.3847/1538-4357/aaeb8e

Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts, and Nucleosynthesis
journal, December 2018

  • Radice, David; Perego, Albino; Hotokezaka, Kenta
  • The Astrophysical Journal, Vol. 869, Issue 2
  • DOI: 10.3847/1538-4357/aaf054

Neutron Star Mergers Might Not Be the Only Source of r -process Elements in the Milky Way
journal, April 2019

  • Côté, Benoit; Eichler, Marius; Arcones, Almudena
  • The Astrophysical Journal, Vol. 875, Issue 2
  • DOI: 10.3847/1538-4357/ab10db

When Did the Remnant of GW170817 Collapse to a Black Hole?
journal, May 2019

  • Gill, Ramandeep; Nathanail, Antonios; Rezzolla, Luciano
  • The Astrophysical Journal, Vol. 876, Issue 2
  • DOI: 10.3847/1538-4357/ab16da

Finding the Remnants of the Milky Way's Last Neutron Star Mergers
journal, July 2019

  • Wu, Meng-Ru; Banerjee, Projjwal; Metzger, Brian D.
  • The Astrophysical Journal, Vol. 880, Issue 1
  • DOI: 10.3847/1538-4357/ab2593

The Lanthanide Fraction Distribution in Metal-poor Stars: A Test of Neutron Star Mergers as the Dominant r -process Site
journal, August 2019

  • Ji, Alexander P.; Drout, Maria R.; Hansen, Terese T.
  • The Astrophysical Journal, Vol. 882, Issue 1
  • DOI: 10.3847/1538-4357/ab3291

Short GRB 160821B: A Reverse Shock, a Refreshed Shock, and a Well-sampled Kilonova
journal, September 2019


Diversity of Kilonova Light Curves
journal, February 2020

  • Kawaguchi, Kyohei; Shibata, Masaru; Tanaka, Masaomi
  • The Astrophysical Journal, Vol. 889, Issue 2
  • DOI: 10.3847/1538-4357/ab61f6

ν bhlight : Radiation GRMHD for Neutrino-driven Accretion Flows
journal, April 2019

  • Miller, Jonah M.; Ryan, Ben. R.; Dolence, Joshua C.
  • The Astrophysical Journal Supplement Series, Vol. 241, Issue 2
  • DOI: 10.3847/1538-4365/ab09fc

AT 2017gfo: An Anisotropic and Three-component Kilonova Counterpart of GW170817
journal, November 2017

  • Perego, Albino; Radice, David; Bernuzzi, Sebastiano
  • The Astrophysical Journal, Vol. 850, Issue 2
  • DOI: 10.3847/2041-8213/aa9ab9

GRB 170817A Associated with GW170817: Multi-frequency Observations and Modeling of Prompt Gamma-Ray Emission
journal, January 2018

  • Pozanenko, A. S.; Barkov, M. V.; Minaev, P. Yu.
  • The Astrophysical Journal, Vol. 852, Issue 2
  • DOI: 10.3847/2041-8213/aaa2f6

How Special Is GRB 170817A?
journal, January 2018


The Binary Neutron Star Event LIGO/Virgo GW170817 160 Days after Merger: Synchrotron Emission across the Electromagnetic Spectrum
journal, March 2018


A Globular Cluster Luminosity Function Distance to NGC 4993 Hosting a Binary Neutron Star Merger GW170817/GRB 170817A
journal, May 2018

  • Lee, Myung Gyoon; Kang, Jisu; Im, Myungshin
  • The Astrophysical Journal, Vol. 859, Issue 1
  • DOI: 10.3847/2041-8213/aac2e9

GW170817 Most Likely Made a Black Hole
journal, May 2018

  • Pooley, David; Kumar, Pawan; Wheeler, J. Craig
  • The Astrophysical Journal, Vol. 859, Issue 2
  • DOI: 10.3847/2041-8213/aac3d6

An Upper Limit on the Linear Polarization Fraction of the GW170817 Radio Continuum
journal, July 2018

  • Corsi, Alessandra; Hallinan, Gregg W.; Lazzati, Davide
  • The Astrophysical Journal, Vol. 861, Issue 1
  • DOI: 10.3847/2041-8213/aacdfd

What Powered the Optical Transient AT2017gfo Associated with GW170817?
journal, July 2018


Observational Implications of Lowering the LIGO-Virgo Alert Threshold
journal, July 2018

  • Lynch, Ryan; Coughlin, Michael; Vitale, Salvatore
  • The Astrophysical Journal, Vol. 861, Issue 2
  • DOI: 10.3847/2041-8213/aacf9f

Spitzer Space Telescope Infrared Observations of the Binary Neutron Star Merger GW170817
journal, July 2018

  • Villar, V. A.; Cowperthwaite, P. S.; Berger, E.
  • The Astrophysical Journal, Vol. 862, Issue 1
  • DOI: 10.3847/2041-8213/aad281

Californium-254 and Kilonova Light Curves
journal, August 2018


A Strong Jet Signature in the Late-time Light Curve of GW170817
journal, November 2018


The Optical Afterglow of GW170817 at One Year Post-merger
journal, January 2019


Follow-up of the Neutron Star Bearing Gravitational-wave Candidate Events S190425z and S190426c with MMT and SOAR
journal, July 2019

  • Hosseinzadeh, G.; Cowperthwaite, P. S.; Gomez, S.
  • The Astrophysical Journal, Vol. 880, Issue 1
  • DOI: 10.3847/2041-8213/ab271c

GROWTH on S190510g: DECam Observation Planning and Follow-up of a Distant Binary Neutron Star Merger Candidate
journal, August 2019

  • Andreoni, Igor; Goldstein, Daniel A.; Anand, Shreya
  • The Astrophysical Journal, Vol. 881, Issue 1
  • DOI: 10.3847/2041-8213/ab3399

The Optical Afterglow of GW170817: An Off-axis Structured Jet and Deep Constraints on a Globular Cluster Origin
journal, September 2019

  • Fong, W.; Blanchard, P. K.; Alexander, K. D.
  • The Astrophysical Journal, Vol. 883, Issue 1
  • DOI: 10.3847/2041-8213/ab3d9e

The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass
journal, October 2019

  • Biscoveanu, Sylvia; Vitale, Salvatore; Haster, Carl-Johan
  • The Astrophysical Journal, Vol. 884, Issue 2
  • DOI: 10.3847/2041-8213/ab479e

SN2018kzr: A Rapidly Declining Transient from the Destruction of a White Dwarf
journal, October 2019

  • McBrien, Owen R.; Smartt, Stephen J.; Chen, Ting-Wan
  • The Astrophysical Journal, Vol. 885, Issue 1
  • DOI: 10.3847/2041-8213/ab4dae

Spiral-wave Wind for the Blue Kilonova
journal, November 2019

  • Nedora, Vsevolod; Bernuzzi, Sebastiano; Radice, David
  • The Astrophysical Journal, Vol. 886, Issue 2
  • DOI: 10.3847/2041-8213/ab5794

Upscattered Cocoon Emission in Short Gamma-Ray Bursts as High-energy Gamma-Ray Counterparts to Gravitational Waves
journal, December 2019

  • Kimura, Shigeo S.; Murase, Kohta; Ioka, Kunihito
  • The Astrophysical Journal, Vol. 887, Issue 1
  • DOI: 10.3847/2041-8213/ab59e1

The optical afterglow of the short gamma-ray burst associated with GW170817
journal, July 2018


Identification of strontium in the merger of two neutron stars
journal, October 2019


The X-shooter GRB afterglow legacy sample (XS-GRB)
journal, March 2019


Binary white dwarfs as laboratories for extreme gravity with LISA
journal, April 2019


GW170817: implications for the local kilonova rate and for surveys from ground-based facilities
journal, September 2018

  • Della Valle, M.; Guetta, D.; Cappellaro, E.
  • Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 4
  • DOI: 10.1093/mnras/sty2541

Implications of the radio and X-ray emission that followed GW170817
journal, April 2018

  • Nakar, Ehud; Piran, Tsvi
  • Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 1
  • DOI: 10.1093/mnras/sty952

Jet structure in the afterglow phase for gamma-ray bursts with a precessing jet
journal, June 2019

  • Huang, Bao-Quan; Lin, Da-Bin; Liu, Tong
  • Monthly Notices of the Royal Astronomical Society, Vol. 487, Issue 3
  • DOI: 10.1093/mnras/stz1426

Observable features of GW170817 kilonova afterglow
journal, June 2019

  • Kathirgamaraju, Adithan; Giannios, Dimitrios; Beniamini, Paz
  • Monthly Notices of the Royal Astronomical Society, Vol. 487, Issue 3
  • DOI: 10.1093/mnras/stz1564

The Palomar Transient Factory Sky2Night programme
journal, January 2019

  • van Roestel, J.; Groot, P. J.; Kupfer, T.
  • Monthly Notices of the Royal Astronomical Society, Vol. 484, Issue 4
  • DOI: 10.1093/mnras/stz241

Serendipitous discoveries of kilonovae in the LSST main survey: maximizing detections of sub-threshold gravitational wave events
journal, February 2019

  • Setzer, Christian N.; Biswas, Rahul; Peiris, Hiranya V.
  • Monthly Notices of the Royal Astronomical Society, Vol. 485, Issue 3
  • DOI: 10.1093/mnras/stz506

A luminosity distribution for kilonovae based on short gamma-ray burst afterglows
journal, March 2019

  • Ascenzi, Stefano; Coughlin, Michael W.; Dietrich, Tim
  • Monthly Notices of the Royal Astronomical Society, Vol. 486, Issue 1
  • DOI: 10.1093/mnras/stz891

Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP
journal, March 2020


Informing direct neutron capture on tin isotopes near the N = 82 shell closure
journal, April 2019


Remnant baryon mass in neutron star-black hole mergers: Predictions for binary neutron star mimickers and rapidly spinning black holes
journal, October 2018


Gravitational waveforms from spectral Einstein code simulations: Neutron star-neutron star and low-mass black hole-neutron star binaries
journal, February 2019


A gravitational-wave standard siren measurement of the Hubble constant.
text, January 2017

  • Collaboration, LIGO Scientific; Collaboration,, 1m2h; Collaboration, Dark Energy Camera GW-EM
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.31821

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA
text, January 2020

  • Abbott, B. P.; Abbott, R.; Abbott, T. D.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.57867

Abundances in the Local Region. III. Southern F, G, and K Dwarfs
journal, February 2018


Kinematics of Highly r -process-enhanced Field Stars: Evidence for an Accretion Origin and Detection of Several Groups from Disrupted Satellites
journal, October 2018

  • Roederer, Ian U.; Hattori, Kohei; Valluri, Monica
  • The Astronomical Journal, Vol. 156, Issue 4
  • DOI: 10.3847/1538-3881/aadd9c

Short GRBs: Opening Angles, Local Neutron Star Merger Rate, and Off-axis Events for GRB/GW Association
journal, April 2018


On GW170817 and the Galactic Binary Neutron Star Population
journal, October 2018


Kilonova Emission from Black Hole–Neutron Star Mergers: Observational Signatures of Anisotropic Mass Ejection
journal, October 2018

  • Huang, Zhi-Qiu; Liu, Liang-Duan; Wang, Xiang-Yu
  • The Astrophysical Journal, Vol. 867, Issue 1
  • DOI: 10.3847/1538-4357/aae093

β -delayed Fission in r -process Nucleosynthesis
journal, December 2018

  • Mumpower, M. R.; Kawano, T.; Sprouse, T. M.
  • The Astrophysical Journal, Vol. 869, Issue 1
  • DOI: 10.3847/1538-4357/aaeaca

Optical Follow-up of Gravitational-wave Events during the Second Advanced LIGO/VIRGO Observing Run with the DLT40 Survey
journal, April 2019

  • Yang, Sheng; Sand, David J.; Valenti, Stefano
  • The Astrophysical Journal, Vol. 875, Issue 1
  • DOI: 10.3847/1538-4357/ab0e06

Probing the Production of Actinides under Different r-process Conditions
journal, July 2019


A Pulsar Wind Nebula Embedded in the Kilonova AT 2017gfo Associated with GW170817/GRB 170817A
journal, October 2019


Abundances and Depletions of Neutron-capture Elements in the Interstellar Medium
journal, May 2018

  • Ritchey, A. M.; Federman, S. R.; Lambert, D. L.
  • The Astrophysical Journal Supplement Series, Vol. 236, Issue 2
  • DOI: 10.3847/1538-4365/aab71e

Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817
journal, December 2017


Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817
journal, November 2017


GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
journal, January 2018

  • Radice, David; Perego, Albino; Zappa, Francesco
  • The Astrophysical Journal, Vol. 852, Issue 2
  • DOI: 10.3847/2041-8213/aaa402

A Turnover in the Radio Light Curve of GW170817
journal, May 2018

  • Dobie, Dougal; Kaplan, David L.; Murphy, Tara
  • The Astrophysical Journal, Vol. 858, Issue 2
  • DOI: 10.3847/2041-8213/aac105

Viscous-dynamical Ejecta from Binary Neutron Star Mergers
journal, December 2018

  • Radice, David; Perego, Albino; Hotokezaka, Kenta
  • The Astrophysical Journal, Vol. 869, Issue 2
  • DOI: 10.3847/2041-8213/aaf053

Can Kilonova Light Curves Be Standardized?
journal, November 2019

  • Kashyap, Rahul; Raman, Gayathri; Ajith, Parameswaran
  • The Astrophysical Journal, Vol. 886, Issue 1
  • DOI: 10.3847/2041-8213/ab543f

Binary neutron stars and production of heavy elements
journal, January 2019

  • Matteucci, Francesca; Romano, Donatella; Cescutti, Gabriele
  • Rendiconti Lincei. Scienze Fisiche e Naturali, Vol. 30, Issue S1
  • DOI: 10.1007/s12210-018-0754-z

Kilonovae
journal, December 2019


The first direct double neutron star merger detection: Implications for cosmic nucleosynthesis
journal, July 2018


Presto-Color: A Photometric Survey Cadence for Explosive Physics and Fast Transients
journal, April 2019

  • Bianco, Federica B.; Drout, Maria R.; Graham, Melissa L.
  • Publications of the Astronomical Society of the Pacific, Vol. 131, Issue 1000
  • DOI: 10.1088/1538-3873/ab121a

Can a black hole–neutron star merger explain GW170817, AT2017gfo, and GRB170817A?
journal, August 2019


Fingerprints of Heavy-Element Nucleosynthesis in the Late-Time Lightcurves of Kilonovae
journal, February 2019


Properties of the Binary Neutron Star Merger GW170817
journal, January 2019


The Allowed Parameter Space of a Long-lived Neutron Star as the Merger Remnant of GW170817
journal, June 2018


Numerical Simulations of the Jet Dynamics and Synchrotron Radiation of Binary Neutron Star Merger Event GW170817/GRB 170817A
journal, August 2018

  • Xie, Xiaoyi; Zrake, Jonathan; MacFadyen, Andrew
  • The Astrophysical Journal, Vol. 863, Issue 1
  • DOI: 10.3847/1538-4357/aacf9c

Optimized Radio Follow-up of Binary Neutron-star Mergers
journal, November 2018


Radioactive Heating and Late Time Kilonova Light Curves
journal, May 2019


Optimal Search Strategy for Finding Transients in Large-sky Error Regions under Realistic Constraints
journal, May 2019


Can Neutron-star Mergers Explain the r -process Enrichment in Globular Clusters?
journal, November 2019

  • Zevin, Michael; Kremer, Kyle; Siegel, Daniel M.
  • The Astrophysical Journal, Vol. 886, Issue 1
  • DOI: 10.3847/1538-4357/ab498b

Gamma Rays from Kilonova: A Potential Probe of r -process Nucleosynthesis
journal, February 2020

  • Korobkin, Oleg; Hungerford, Aimee M.; Fryer, Christopher L.
  • The Astrophysical Journal, Vol. 889, Issue 2
  • DOI: 10.3847/1538-4357/ab64d8

Improved Constraints on H 0 from a Combined Analysis of Gravitational-wave and Electromagnetic Emission from GW170817
journal, December 2017


A Precise Distance to the Host Galaxy of the Binary Neutron Star Merger GW170817 Using Surface Brightness Fluctuations
journal, February 2018

  • Cantiello, Michele; Jensen, J. B.; Blakeslee, J. P.
  • The Astrophysical Journal, Vol. 854, Issue 2
  • DOI: 10.3847/2041-8213/aaad64

Radiative Transfer Simulation for the Optical and Near-infrared Electromagnetic Counterparts to GW170817
journal, September 2018

  • Kawaguchi, Kyohei; Shibata, Masaru; Tanaka, Masaomi
  • The Astrophysical Journal, Vol. 865, Issue 2
  • DOI: 10.3847/2041-8213/aade02

On the Possibility of GW190425 Being a Black Hole–Neutron Star Binary Merger
journal, February 2020

  • Kyutoku, Koutarou; Fujibayashi, Sho; Hayashi, Kota
  • The Astrophysical Journal, Vol. 890, Issue 1
  • DOI: 10.3847/2041-8213/ab6e70

r -Process Nucleosynthesis in the Early Universe Through Fast Mergers of Compact Binaries in Triple Systems
journal, January 2018

  • Bonetti, Matteo; Perego, Albino; Capelo, Pedro R.
  • Publications of the Astronomical Society of Australia, Vol. 35
  • DOI: 10.1017/pasa.2018.11

From the microscopic to the macroscopic world: from nucleons to neutron stars
journal, August 2019

  • Gandolfi, S.; Lippuner, J.; Steiner, A. W.
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 10
  • DOI: 10.1088/1361-6471/ab29b3

GRB 170817A as a jet counterpart to gravitational wave triggerGW 170817
journal, May 2018

  • Lamb, Gavin P.; Kobayashi, Shiho
  • Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 1
  • DOI: 10.1093/mnras/sty1108

Late-time evolution of afterglows from off-axis neutron star mergers
journal, August 2018

  • Lamb, Gavin P.; Mandel, Ilya; Resmi, Lekshmi
  • Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 2
  • DOI: 10.1093/mnras/sty2196

Using failed supernovae to constrain the Galactic r-process element production
journal, May 2019

  • Wehmeyer, B.; Fröhlich, C.; Côté, B.
  • Monthly Notices of the Royal Astronomical Society, Vol. 487, Issue 2
  • DOI: 10.1093/mnras/stz1310

The role of magnetic field geometry in the evolution of neutron star merger accretion discs
journal, September 2019

  • Christie, I. M.; Lalakos, A.; Tchekhovskoy, A.
  • Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 4
  • DOI: 10.1093/mnras/stz2552

Full transport model of GW170817-like disk produces a blue kilonova
journal, July 2019


Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA
other, January 2020

  • Abbott, B. P.; Abbott, R.; Abbott, T. D.
  • Heidelberg : Springer
  • DOI: 10.15488/10565

Late-time Kilonova Light Curves and Implications to GW170817
journal, June 2019


Extended Calculations of Energy Levels and Transition Rates of Nd ii-iv Ions for Application to Neutron Star Mergers
journal, February 2019

  • Gaigalas, Gediminas; Kato, Daiji; Rynkun, Pavel
  • The Astrophysical Journal Supplement Series, Vol. 240, Issue 2
  • DOI: 10.3847/1538-4365/aaf9b8

The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817
journal, October 2017

  • Hjorth, Jens; Levan, Andrew J.; Tanvir, Nial R.
  • The Astrophysical Journal, Vol. 848, Issue 2
  • DOI: 10.3847/2041-8213/aa9110

Neutron-star Radius Constraints from GW170817 and Future Detections
journal, November 2017

  • Bauswein, Andreas; Just, Oliver; Janka, Hans-Thomas
  • The Astrophysical Journal, Vol. 850, Issue 2
  • DOI: 10.3847/2041-8213/aa9994

An interacting dark sector and the implications of the first gravitational-wave standard siren detection on current constraints
journal, May 2019

  • Mifsud, Jurgen; van de Bruck, Carsten
  • Monthly Notices of the Royal Astronomical Society, Vol. 487, Issue 1
  • DOI: 10.1093/mnras/stz1293

Probing the extragalactic fast transient sky at minute time-scales with DECam
journal, December 2019

  • Andreoni, I.; Cooke, J.; Webb, S.
  • Monthly Notices of the Royal Astronomical Society, Vol. 491, Issue 4
  • DOI: 10.1093/mnras/stz3381

Models and simulations for the photometric lsst astronomical time series classification challenge (Plasticc)
text, January 2019

  • Kessler, R.; Narayan, G.; Avelino, A.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.41808

Constraining the Inclinations of Binary Mergers from Gravitational-wave Observations
journal, May 2019


GRB 170817A as a jet counterpart to gravitational wave trigger GW 170817
text, January 2017


AT2017gfo: an anisotropic and three-component kilonova counterpart of GW170817
text, January 2017


Transient Survey Rates for Orphan Afterglows from Compact Merger Jets
text, January 2017


GW170817 Most Likely Made a Black Hole
text, January 2017


The optical afterglow of the short gamma-ray burst associated with GW170817
preprint, January 2018


A magnetar origin for the kilonova ejecta in GW170817
text, January 2018


The X-shooter GRB afterglow legacy sample (XS-GRB)
text, January 2018


Abundances and Depletions of Neutron-Capture Elements in the Interstellar Medium
text, January 2018


A turnover in the radio light curve of GW170817
text, January 2018


What Powered the Optical Transient AT2017gfo Associated with GW170817?
text, January 2018


Spitzer Space Telescope Infrared Observations of the Binary Neutron Star Merger GW170817
text, January 2018


Californium-254 and kilonova light curves
text, January 2018


Neutron Star Mergers Are the Dominant Source of the r-process in the Early Evolution of Dwarf Galaxies
text, January 2018


Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts and Nucleosynthesis
text, January 2018


Viscous-Dynamical Ejecta from Binary Neutron Star Merger
text, January 2018


Multimessenger Parameter Estimation of GW170817
text, January 2018


Presto-Color: A Photometric Survey Cadence for Explosive Physics & Fast Transients
text, January 2018


A new delay time distribution for merging neutron stars tested against Galactic and cosmic data
text, January 2019


Late time kilonova light curves and implications to GW 170817
text, January 2019


From the microscopic to the macroscopic world: from nucleons to neutron stars
text, January 2019


Gamma-rays from kilonova: a potential probe of r-process nucleosynthesis
text, January 2019


Full Transport Model of GW170817-Like Disk Produces a Blue Kilonova
text, January 2019


Neutron star binary orbits in their host potential: effect on early r-process enrichment
text, January 2019


A multi-dimensional implementation of the Advanced Spectral neutrino Leakage scheme
text, January 2019


Diversity of kilonova light curves
text, January 2019


On the possibility of GW190425 being a black hole--neutron star binary merger
text, January 2020


Kilonovae
journal, December 2019


Generating keV ion distributions for nuclear reactions at near solid-density using intense short-pulse lasers
journal, September 2019


Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA
text, January 2020

  • Abbott, B. P.; Abbott, R.; Abbott, T. D.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.57867