publication . Article . 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Discovery of the Optical Counterpart Using the Dark Energy Camera

Soares-Santos, M.; Holz, D. E.; Annis, J.; Chornock, R.; Herner, K.; Berger, E.; Brout, D.; Chen, H.-Y.; Kessler, R.; Sako, M.; ...
Open Access English
  • Published: 16 Oct 2017
  • Publisher: HAL CCSD
Abstract
We present the Dark Energy Camera (DECam) discovery of the optical counterpart of the first binary neutron star merger detected through gravitational wave emission, GW170817. Our observations commenced 10.5 hours post-merger, as soon as the localization region became accessible from Chile. We imaged 70 deg2 in the i and z bands, covering 93% of the initial integrated localization probability, to a depth necessary to identify likely optical counterparts (e.g., a kilonova). At 11.4 hours post-merger we detected a bright optical transient located 10.6′′ from the nucleus of NGC 4993 at redshift z = 0.0098, consistent (for H0=70\, km s−1 Mpc−1) with the distance of 4...
Persistent Identifiers
Subjects
free text keywords: messenger, star, luminosity, nucleus, redshift, supernova, background, electromagnetic, LIGO, VIRGO, dark energy, localization, optical, neutron star: binary, gravitational radiation: emission, surveys, stars: neutron, gravitational waves, binaries: close, catalogs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Space and Planetary Science, Astronomy and Astrophysics, binaries: close— catalogs— gravitational waves — stars: neutron— surveys, astro-ph.HE, RCUK, STFC, HEFCE, AST-1411763, AST-1714498, close [binaries], catalogs, gravitational waves, neutron [stars], surveys, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], QB, Physics, Kilonova, Neutron star, Astrophysics, LIGO, Redshift, Supernova, LIGO Scientific Collaboration, Luminosity, Gravitational wave
Funded by
NSF| From First Detections to Gravitational-Wave Astrophysics
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1708081
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Physics
,
NSF| Gamma-Ray Bursts: Physics, Progenitors, and Probes
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1714498
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
,
NSF| The Progenitors and Explosions of Type Ia Supernovae and Exotic Transients
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1518052
,
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
79 references, page 1 of 6

Abbott, B. P., Abbott, R., Abbott, T., et al. 2016, ApJL, 832, L21

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2016a, PhRvL, 116, 061102

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2016b, PhRvL, 116, 241103

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2016c, LRR, 19, 1

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2017a, PhRvL, 118, 221101

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2017b, ApJL, https://doi.org/ 10.3847/2041-8213/aa91c9

Alexander, K., Berger, E., Fong, W., et al. 2017, ApJL, https://doi.org/ 10.3847/2041-8213/aa905d

Allam, S., Annis, J., Berger, E., et al. 2017, GCN, 21530

Barnes, J., & Kasen, D. 2013, ApJ, 775, 18

Bauswein, A., Goriely, S., & Janka, H.-T. 2013, ApJ, 773, 78

Bauswein, A., Pulpillo, R. A., Janka, H.-T., & Goriely, S. 2014, ApJL, 795, L9

Becker, A. 2015, HOTPANTS: High Order Transform of PSF ANd Template Subtraction, Astrophysics Source Code Library, ascl:1504.004

Bianco, F. B., Modjaz, M., Hicken, M., et al. 2014, ApJS, 213, 19

Blackburn, L., Briggs, M. S., Broida, J., et al. 2017, GCN, 21506

Blanchard, P. K., Berger, E., Fong, W., et al. 2017, ApJL, https://doi.org/ 10.3847/2041-8213/aa9055

79 references, page 1 of 6
Abstract
We present the Dark Energy Camera (DECam) discovery of the optical counterpart of the first binary neutron star merger detected through gravitational wave emission, GW170817. Our observations commenced 10.5 hours post-merger, as soon as the localization region became accessible from Chile. We imaged 70 deg2 in the i and z bands, covering 93% of the initial integrated localization probability, to a depth necessary to identify likely optical counterparts (e.g., a kilonova). At 11.4 hours post-merger we detected a bright optical transient located 10.6′′ from the nucleus of NGC 4993 at redshift z = 0.0098, consistent (for H0=70\, km s−1 Mpc−1) with the distance of 4...
Persistent Identifiers
Subjects
free text keywords: messenger, star, luminosity, nucleus, redshift, supernova, background, electromagnetic, LIGO, VIRGO, dark energy, localization, optical, neutron star: binary, gravitational radiation: emission, surveys, stars: neutron, gravitational waves, binaries: close, catalogs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Space and Planetary Science, Astronomy and Astrophysics, binaries: close— catalogs— gravitational waves — stars: neutron— surveys, astro-ph.HE, RCUK, STFC, HEFCE, AST-1411763, AST-1714498, close [binaries], catalogs, gravitational waves, neutron [stars], surveys, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], QB, Physics, Kilonova, Neutron star, Astrophysics, LIGO, Redshift, Supernova, LIGO Scientific Collaboration, Luminosity, Gravitational wave
Funded by
NSF| From First Detections to Gravitational-Wave Astrophysics
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1708081
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Physics
,
NSF| Gamma-Ray Bursts: Physics, Progenitors, and Probes
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1714498
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
,
NSF| The Progenitors and Explosions of Type Ia Supernovae and Exotic Transients
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1518052
,
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
79 references, page 1 of 6

Abbott, B. P., Abbott, R., Abbott, T., et al. 2016, ApJL, 832, L21

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2016a, PhRvL, 116, 061102

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2016b, PhRvL, 116, 241103

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2016c, LRR, 19, 1

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2017a, PhRvL, 118, 221101

Abbott, B. P., Abbott, R., Abbott, T. D., et al. 2017b, ApJL, https://doi.org/ 10.3847/2041-8213/aa91c9

Alexander, K., Berger, E., Fong, W., et al. 2017, ApJL, https://doi.org/ 10.3847/2041-8213/aa905d

Allam, S., Annis, J., Berger, E., et al. 2017, GCN, 21530

Barnes, J., & Kasen, D. 2013, ApJ, 775, 18

Bauswein, A., Goriely, S., & Janka, H.-T. 2013, ApJ, 773, 78

Bauswein, A., Pulpillo, R. A., Janka, H.-T., & Goriely, S. 2014, ApJL, 795, L9

Becker, A. 2015, HOTPANTS: High Order Transform of PSF ANd Template Subtraction, Astrophysics Source Code Library, ascl:1504.004

Bianco, F. B., Modjaz, M., Hicken, M., et al. 2014, ApJS, 213, 19

Blackburn, L., Briggs, M. S., Broida, J., et al. 2017, GCN, 21506

Blanchard, P. K., Berger, E., Fong, W., et al. 2017, ApJL, https://doi.org/ 10.3847/2041-8213/aa9055

79 references, page 1 of 6
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