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Title: Toward Rapid Transient Identification and Characterization of Kilonovae

Abstract

With the mounting sensitivity of advanced gravitational-wave (GW) detectors, the first joint detection of an electromagnetic and GW signal from a compact binary merger will hopefully happen within this decade. Yet, current GW likelihood sky areas span $$\sim 100\mbox{--}1000\,{\deg }^{2}$$, and thus it is a challenging task to identify which, if any, transient corresponds to the GW event. In this study, we make a comparison between recent kilonova/macronova light-curve models for the purpose of assessing potential light-curve templates for counterpart identification. We show that recent analytical and parameterized models for these counterparts result in qualitative agreement with more complicated radiative transfer simulations. Our analysis suggests that with improved light-curve models with smaller uncertainties it will become possible to extract information about ejecta properties and binary parameters directly from the light-curve measurement. Even tighter constraints are obtained in cases for which GW and kilonova parameter estimation results are combined. It will therefore be critical to make comparisons and potentially combine parameter estimation with the kilonova and GW results. However, to be prepared for upcoming detections, more realistic kilonova models are needed. These will require numerical relativity with more detailed microphysics, better radiative transfer simulations, and a better understanding of the underlying nuclear physics.

Authors:
ORCiD logo [1];  [2];  [2]; ORCiD logo [3]; ORCiD logo [1];  [4]
  1. Harvard Univ., Cambridge, MA (United States)
  2. Max Planck Inst. for Gravitational Physics, Golm (Germany)
  3. Queen's Univ., Belfast, Northern Ireland (United Kingdom)
  4. Federal Univ. of ABC Santo Andre, Sao Paulo (Brazil)
Publication Date:
Research Org.:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1527166
Grant/Contract Number:  
[SC0007881]
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
[Journal Name: The Astrophysical Journal (Online); Journal Volume: 849; Journal Issue: 1]; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gravitational waves; stars: neutron; surveys

Citation Formats

Coughlin, Michael, Dietrich, Tim, Kawaguchi, Kyohei, Smartt, Stephen, Stubbs, Christopher, and Ujevic, Maximiliano. Toward Rapid Transient Identification and Characterization of Kilonovae. United States: N. p., 2017. Web. doi:10.3847/1538-4357/aa9114.
Coughlin, Michael, Dietrich, Tim, Kawaguchi, Kyohei, Smartt, Stephen, Stubbs, Christopher, & Ujevic, Maximiliano. Toward Rapid Transient Identification and Characterization of Kilonovae. United States. doi:10.3847/1538-4357/aa9114.
Coughlin, Michael, Dietrich, Tim, Kawaguchi, Kyohei, Smartt, Stephen, Stubbs, Christopher, and Ujevic, Maximiliano. Wed . "Toward Rapid Transient Identification and Characterization of Kilonovae". United States. doi:10.3847/1538-4357/aa9114. https://www.osti.gov/servlets/purl/1527166.
@article{osti_1527166,
title = {Toward Rapid Transient Identification and Characterization of Kilonovae},
author = {Coughlin, Michael and Dietrich, Tim and Kawaguchi, Kyohei and Smartt, Stephen and Stubbs, Christopher and Ujevic, Maximiliano},
abstractNote = {With the mounting sensitivity of advanced gravitational-wave (GW) detectors, the first joint detection of an electromagnetic and GW signal from a compact binary merger will hopefully happen within this decade. Yet, current GW likelihood sky areas span $\sim 100\mbox{--}1000\,{\deg }^{2}$, and thus it is a challenging task to identify which, if any, transient corresponds to the GW event. In this study, we make a comparison between recent kilonova/macronova light-curve models for the purpose of assessing potential light-curve templates for counterpart identification. We show that recent analytical and parameterized models for these counterparts result in qualitative agreement with more complicated radiative transfer simulations. Our analysis suggests that with improved light-curve models with smaller uncertainties it will become possible to extract information about ejecta properties and binary parameters directly from the light-curve measurement. Even tighter constraints are obtained in cases for which GW and kilonova parameter estimation results are combined. It will therefore be critical to make comparisons and potentially combine parameter estimation with the kilonova and GW results. However, to be prepared for upcoming detections, more realistic kilonova models are needed. These will require numerical relativity with more detailed microphysics, better radiative transfer simulations, and a better understanding of the underlying nuclear physics.},
doi = {10.3847/1538-4357/aa9114},
journal = {The Astrophysical Journal (Online)},
number = [1],
volume = [849],
place = {United States},
year = {2017},
month = {10}
}

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Cited by: 9 works
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Figures / Tables:

Figure 1 Figure 1: Bolometric luminosity (left) and light curves in the g (dashed) and i (solid) bands (right). The parameterized models of Kawaguchi et al. (2016) and Dietrich & Ujevic (2017) use Mej ≈ 5 × 10–3, $ν$ej ≈ 0.2, and $ θ $ = 0.2 rad. Barnes et al. (2016)more » use a model with Mej ≈ 5 × 10–3 and $ν$ej ≈ 0.2. We use the fiducial model of Metzger et al. (2015), which uses a neutron mass cut mn = 10–4, opacity of $κ$ = 30 cm2 g–1 , and electron fraction Ye = 0.05. From Rosswog et al. (2017), we include a model with Mej = 0.0079 and $ν$ej = 0.12, which is the closest available to our fiducial model.« less

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Works referenced in this record:

Observation of Gravitational Waves from a Binary Black Hole Merger
journal, February 2016


GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
journal, June 2016


GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
journal, June 2017


Quasiuniversal Properties of Neutron Star Mergers
journal, May 2014


X-ray spectral modelling of the AGN obscuring region in the CDFS: Bayesian model selection and catalogue
journal, April 2014


Microscopic mass formulas
journal, July 1995


MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
journal, October 2009


corner.py: Scatterplot matrices in Python
journal, June 2016

  • Foreman-Mackey, Daniel
  • The Journal of Open Source Software, Vol. 1, Issue 2
  • DOI: 10.21105/joss.00024

Comparison of gravitational wave detector network sky localization approximations
journal, February 2014


SALT2: using distant supernovae to improve the use of type Ia supernovae as distance indicators
journal, February 2007


Kilonova light curves from the disc wind outflows of compact object mergers
journal, April 2015

  • Kasen, Daniel; Fernández, Rodrigo; Metzger, Brian D.
  • Monthly Notices of the Royal Astronomical Society, Vol. 450, Issue 2
  • DOI: 10.1093/mnras/stv721

Electromagnetic transients as triggers in searches for gravitational waves from compact binary mergers
journal, June 2013


Ultrarelativistic electromagnetic counterpart to binary neutron star mergers
journal, October 2013

  • Kyutoku, K.; Ioka, K.; Shibata, M.
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 437, Issue 1
  • DOI: 10.1093/mnrasl/slt128

A flux-limited diffusion theory
journal, August 1981

  • Levermore, C. D.; Pomraning, G. C.
  • The Astrophysical Journal, Vol. 248
  • DOI: 10.1086/159157

Equation-of-state-independent relations in neutron stars
journal, July 2013


Kilonovae
journal, May 2017


Neutron-powered precursors of kilonovae
journal, November 2014

  • Metzger, Brian D.; Bauswein, Andreas; Goriely, Stephane
  • Monthly Notices of the Royal Astronomical Society, Vol. 446, Issue 1
  • DOI: 10.1093/mnras/stu2225

Electromagnetic counterparts of compact object mergers powered by the radioactive decay of r-process nuclei: Transients from compact object mergers
journal, June 2010


Short-duration gamma-ray bursts with extended emission from protomagnetar spin-down
journal, April 2008


Nuclear Ground-State Masses and Deformations
journal, March 1995

  • Moller, P.; Nix, J. R.; Myers, W. D.
  • Atomic Data and Nuclear Data Tables, Vol. 59, Issue 2, p. 185-381
  • DOI: 10.1006/adnd.1995.1002

Design differences between the Pan-STARRS PS1 and PS2 telescopes
conference, September 2012

  • Morgan, Jeffrey S.; Kaiser, Nicholas; Moreau, Vincent
  • SPIE Astronomical Telescopes + Instrumentation, SPIE Proceedings
  • DOI: 10.1117/12.926646

Short-hard gamma-ray bursts
journal, April 2007


Effectively Universal Behavior of Rotating Neutron Stars in General Relativity Makes Them Even Simpler than Their Newtonian Counterparts
journal, March 2014


Neutrino-driven winds from neutron star merger remnants
journal, August 2014

  • Perego, A.; Rosswog, S.; Cabezon, R. M.
  • Monthly Notices of the Royal Astronomical Society, Vol. 443, Issue 4
  • DOI: 10.1093/mnras/stu1352

The multi-messenger picture of compact binary mergers
journal, March 2015


Reconstructing the sky location of gravitational-wave detected compact binary systems: Methodology for testing and comparison
journal, April 2014


Pan-STARRS and PESSTO search for an optical counterpart to the LIGO gravitational-wave source GW150914
journal, August 2016

  • Smartt, S. J.; Chambers, K. C.; Smith, K. W.
  • Monthly Notices of the Royal Astronomical Society, Vol. 462, Issue 4
  • DOI: 10.1093/mnras/stw1893

Kilonova/Macronova Emission from Compact Binary Mergers
journal, January 2016


Geometrical expression for the angular resolution of a network of gravitational-wave detectors
journal, April 2010


Why I-Love-Q: Explaining why universality emerges in compact objects
journal, September 2014


I-Love-Q: Unexpected Universal Relations for Neutron Stars and Quark Stars
journal, July 2013