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Title: iPTF search for an optical counterpart to gravitational-wave transient GW150914

Abstract

The intermediate Palomar Transient Factory (iPTF) autonomously responded to and promptly tiled the error region of the first gravitational-wave event GW150914 to search for an optical counterpart. Only a small fraction of the total localized region was immediately visible in the northern night sky, due both to Sun-angle and elevation constraints. Here, we report on the transient candidates identified and rapid follow-up undertaken to determine the nature of each candidate. Even in the small area imaged of 126 deg2, after extensive filtering, eight candidates were deemed worthy of additional follow-up. Within two hours, all eight were spectroscopically classified by the Keck II telescope. Curiously, even though such events are rare, one of our candidates was a superluminous supernova. We obtained radio data with the Jansky Very Large Array and X-ray follow-up with the Swift satellite for this transient. None of our candidates appear to be associated with the gravitational-wave trigger, which is unsurprising given that GW150914 came from the merger of two stellar-mass black holes. In conclusion, this end-to-end discovery and follow-up campaign bodes well for future searches in this post-detection era of gravitational waves.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [1];  [1]; ORCiD logo [5]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [6];  [7];  [8];  [9]; ORCiD logo [1]; ORCiD logo [1];  [4];  [1]; ORCiD logo [1];  [8] more »; ORCiD logo [1]; ORCiD logo [10]; ORCiD logo [11]; ORCiD logo [1]; ORCiD logo [12]; ORCiD logo [5]; ORCiD logo [1]; ORCiD logo [13]; ORCiD logo [5]; ORCiD logo [1];  [14] « less
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  2. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of Maryland, College Park, MD (United States)
  3. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  4. Texas Tech Univ., Lubbock, TX (United States)
  5. Inter-Univ. Centre for Astronomy and Astrophysics (IUCAA), Pune (India)
  6. Stockholm Univ., Stockholm (Sweden)
  7. National Radio Astronomy Observatory, Socorro, NM (United States)
  8. Weizmann Institute of Science, Rehovot (Israel)
  9. Lockheed Martin Space Systems Co., Palo Alto, CA (United States)
  10. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  11. Niels Bohr Institute, Copenhagen (Denmark)
  12. San Diego State Univ., San Diego, CA (United States); The Univ. of Tokyo, Chiba (Japan)
  13. Max Planck Institute for Astonomy, Heidelberg (Germany)
  14. Univ. of Wisconsin, Milwaukee, WI (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1393054
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Letters
Additional Journal Information:
Journal Volume: 824; 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; gravitational waves; methods: observational; techniques: spectroscopic; surveys

Citation Formats

Kasliwal, M. M., Cenko, S. B., Singer, L. P., Corsi, A., Cao, Y., Barlow, T., Bhalerao, V., Bellm, E., Cook, D., Duggan, G. E., Ferretti, R., Frail, D. A., Horesh, A., Kendrick, R., Kulkarni, S. R., Lunnan, R., Palliyaguru, N., Laher, R., Masci, F., Manulis, I., Miller, A. A., Nugent, P. E., Perley, D., Prince, T. A., Quimby, R. M., Rana, J., Rebbapragada, U., Sesar, B., Singhal, A., Surace, J., and Sistine, A. Van. iPTF search for an optical counterpart to gravitational-wave transient GW150914. United States: N. p., 2016. Web. doi:10.3847/2041-8205/824/2/L24.
Kasliwal, M. M., Cenko, S. B., Singer, L. P., Corsi, A., Cao, Y., Barlow, T., Bhalerao, V., Bellm, E., Cook, D., Duggan, G. E., Ferretti, R., Frail, D. A., Horesh, A., Kendrick, R., Kulkarni, S. R., Lunnan, R., Palliyaguru, N., Laher, R., Masci, F., Manulis, I., Miller, A. A., Nugent, P. E., Perley, D., Prince, T. A., Quimby, R. M., Rana, J., Rebbapragada, U., Sesar, B., Singhal, A., Surace, J., & Sistine, A. Van. iPTF search for an optical counterpart to gravitational-wave transient GW150914. United States. doi:10.3847/2041-8205/824/2/L24.
Kasliwal, M. M., Cenko, S. B., Singer, L. P., Corsi, A., Cao, Y., Barlow, T., Bhalerao, V., Bellm, E., Cook, D., Duggan, G. E., Ferretti, R., Frail, D. A., Horesh, A., Kendrick, R., Kulkarni, S. R., Lunnan, R., Palliyaguru, N., Laher, R., Masci, F., Manulis, I., Miller, A. A., Nugent, P. E., Perley, D., Prince, T. A., Quimby, R. M., Rana, J., Rebbapragada, U., Sesar, B., Singhal, A., Surace, J., and Sistine, A. Van. Thu . "iPTF search for an optical counterpart to gravitational-wave transient GW150914". United States. doi:10.3847/2041-8205/824/2/L24. https://www.osti.gov/servlets/purl/1393054.
@article{osti_1393054,
title = {iPTF search for an optical counterpart to gravitational-wave transient GW150914},
author = {Kasliwal, M. M. and Cenko, S. B. and Singer, L. P. and Corsi, A. and Cao, Y. and Barlow, T. and Bhalerao, V. and Bellm, E. and Cook, D. and Duggan, G. E. and Ferretti, R. and Frail, D. A. and Horesh, A. and Kendrick, R. and Kulkarni, S. R. and Lunnan, R. and Palliyaguru, N. and Laher, R. and Masci, F. and Manulis, I. and Miller, A. A. and Nugent, P. E. and Perley, D. and Prince, T. A. and Quimby, R. M. and Rana, J. and Rebbapragada, U. and Sesar, B. and Singhal, A. and Surace, J. and Sistine, A. Van},
abstractNote = {The intermediate Palomar Transient Factory (iPTF) autonomously responded to and promptly tiled the error region of the first gravitational-wave event GW150914 to search for an optical counterpart. Only a small fraction of the total localized region was immediately visible in the northern night sky, due both to Sun-angle and elevation constraints. Here, we report on the transient candidates identified and rapid follow-up undertaken to determine the nature of each candidate. Even in the small area imaged of 126 deg2, after extensive filtering, eight candidates were deemed worthy of additional follow-up. Within two hours, all eight were spectroscopically classified by the Keck II telescope. Curiously, even though such events are rare, one of our candidates was a superluminous supernova. We obtained radio data with the Jansky Very Large Array and X-ray follow-up with the Swift satellite for this transient. None of our candidates appear to be associated with the gravitational-wave trigger, which is unsurprising given that GW150914 came from the merger of two stellar-mass black holes. In conclusion, this end-to-end discovery and follow-up campaign bodes well for future searches in this post-detection era of gravitational waves.},
doi = {10.3847/2041-8205/824/2/L24},
journal = {The Astrophysical Journal. Letters},
number = 2,
volume = 824,
place = {United States},
year = {2016},
month = {6}
}

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Works referenced in this record:

First Searches for Optical Counterparts to Gravitational-Wave Candidate Events
journal, February 2014

  • Aasi, J.; Abadie, J.; Abbott, B. P.
  • The Astrophysical Journal Supplement Series, Vol. 211, Issue 1
  • DOI: 10.1088/0067-0049/211/1/7

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


Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO and Advanced Virgo
journal, February 2016

  • Abbott, B. P.; Abbott, R.; Abbott, T. D.
  • Living Reviews in Relativity, Vol. 19, Issue 1
  • DOI: 10.1007/lrr-2016-1

Parameter Estimation for Binary Neutron-Star Coalescences with Realistic Noise During the Advanced ligo era
journal, May 2015

  • Berry, Christopher P. L.; Mandel, Ilya; Middleton, Hannah
  • The Astrophysical Journal, Vol. 804, Issue 2
  • DOI: 10.1088/0004-637X/804/2/114

Using machine learning for discovery in synoptic survey imaging data
journal, August 2013

  • Brink, Henrik; Richards, Joseph W.; Poznanski, Dovi
  • Monthly Notices of the Royal Astronomical Society, Vol. 435, Issue 2
  • DOI: 10.1093/mnras/stt1306

The Swift X-Ray Telescope
journal, October 2005


Swift follow-up of the Gravitational Wave source GW150914
journal, April 2016

  • Evans, P. A.; Kennea, J. A.; Barthelmy, S. D.
  • Monthly Notices of the Royal Astronomical Society: Letters
  • DOI: 10.1093/mnrasl/slw065

The DEIMOS spectrograph for the Keck II Telescope: integration and testing
conference, March 2003

  • Faber, Sandra M.; Phillips, Andrew C.; Kibrick, Robert I.
  • Astronomical Telescopes and Instrumentation, SPIE Proceedings
  • DOI: 10.1117/12.460346

The Swift Gamma‐Ray Burst Mission
journal, August 2004

  • Gehrels, N.; Chincarini, G.; Giommi, P.
  • The Astrophysical Journal, Vol. 611, Issue 2
  • DOI: 10.1086/422091

HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere
journal, April 2005

  • Gorski, K. M.; Hivon, E.; Banday, A. J.
  • The Astrophysical Journal, Vol. 622, Issue 2
  • DOI: 10.1086/427976

Gemini Spectroscopy of Supernovae from the Supernova Legacy Survey: Improving High‐Redshift Supernova Selection and Classification
journal, December 2005

  • Howell, D. A.; Sullivan, M.; Perrett, K.
  • The Astrophysical Journal, Vol. 634, Issue 2
  • DOI: 10.1086/497119

Supernova Light Curves Powered by Young Magnetars
journal, June 2010


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

Seeing Gravitational Waves
journal, May 2013


On Discovering Electromagnetic Emission from Neutron star Mergers: the Early Years of two Gravitational wave Detectors
journal, June 2014


The Palomar Transient Factory: System Overview, Performance, and First Results
journal, December 2009

  • Law, Nicholas M.; Kulkarni, Shrinivas R.; Dekany, Richard G.
  • Publications of the Astronomical Society of the Pacific, Vol. 121, Issue 886
  • DOI: 10.1086/648598

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

Red or blue? A potential kilonova imprint of the delay until black hole formation following a neutron star merger
journal, May 2014

  • Metzger, Brian D.; Fernández, Rodrigo
  • Monthly Notices of the Royal Astronomical Society, Vol. 441, Issue 4
  • DOI: 10.1093/mnras/stu802

Ionization break-out from millisecond pulsar wind nebulae: an X-ray probe of the origin of superluminous supernovae
journal, November 2013

  • Metzger, Brian D.; Vurm, Indrek; Hascoët, Romain
  • Monthly Notices of the Royal Astronomical Society, Vol. 437, Issue 1
  • DOI: 10.1093/mnras/stt1922

Superluminous supernovae from PESSTO
journal, September 2014

  • Nicholl, M.; Smartt, S. J.; Jerkstrand, A.
  • Monthly Notices of the Royal Astronomical Society, Vol. 444, Issue 3
  • DOI: 10.1093/mnras/stu1579

Identifying Elusive Electromagnetic Counterparts to Gravitational wave Mergers: an End-To-End Simulation
journal, April 2013

  • Nissanke, Samaya; Kasliwal, Mansi; Georgieva, Alexandra
  • The Astrophysical Journal, Vol. 767, Issue 2
  • DOI: 10.1088/0004-637X/767/2/124

X-Ray Emission from Supernovae in Dense Circumstellar Matter Environments: a Search for Collisionless Shocks
journal, January 2013


The Expanded Very Large Array
journal, August 2009


Hydrogen-poor superluminous stellar explosions
journal, June 2011

  • Quimby, R. M.; Kulkarni, S. R.; Kasliwal, M. M.
  • Nature, Vol. 474, Issue 7352
  • DOI: 10.1038/nature10095

Rates of superluminous supernovae at z ∼ 0.2
journal, March 2013

  • Quimby, Robert M.; Yuan, Fang; Akerlof, Carl
  • Monthly Notices of the Royal Astronomical Society, Vol. 431, Issue 1
  • DOI: 10.1093/mnras/stt213

The Swift Ultra-Violet/Optical Telescope
journal, October 2005

  • Roming, Peter W. A.; Kennedy, Thomas E.; Mason, Keith O.
  • Space Science Reviews, Vol. 120, Issue 3-4
  • DOI: 10.1007/s11214-005-5095-4

DISCOVERY AND REDSHIFT OF AN OPTICAL AFTERGLOW IN 71 deg 2 : iPTF13bxl AND GRB 130702A
journal, October 2013


THE NEEDLE IN THE 100 deg 2 HAYSTACK: UNCOVERING AFTERGLOWS OF FERMI GRBs WITH THE PALOMAR TRANSIENT FACTORY
journal, June 2015

  • Singer, Leo P.; Kasliwal, Mansi M.; Cenko, S. Bradley
  • The Astrophysical Journal, Vol. 806, Issue 1
  • DOI: 10.1088/0004-637X/806/1/52

The First two Years of Electromagnetic Follow-Up with Advanced ligo and Virgo
journal, October 2014


A dark Energy Camera Search for an Optical Counterpart to the First Advanced ligo Gravitational wave Event Gw150914
journal, May 2016


    Works referencing / citing this record:

    An Empirical Study of Contamination in Deep, Rapid, and Wide-field Optical Follow-up of Gravitational Wave Events
    journal, April 2018


    An Empirical Study of Contamination in Deep, Rapid, and Wide-field Optical Follow-up of Gravitational Wave Events
    journal, April 2018