scholarly journals Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source

Science ◽  
2017 ◽  
Vol 358 (6370) ◽  
pp. 1556-1558 ◽  
Author(s):  
D. A. Coulter ◽  
R. J. Foley ◽  
C. D. Kilpatrick ◽  
M. R. Drout ◽  
A. L. Piro ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Optical Counterpart ◽  
Wave Source

scholarly journals A comparison between short GRB afterglows and kilonova AT2017gfo: shedding light on kilonovae properties

2020 ◽  
Vol 493 (3) ◽  
pp. 3379-3397 ◽  
Author(s):  
A Rossi ◽  
G Stratta ◽  
E Maiorano ◽  
D Spighi ◽  
N Masetti ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Gamma Ray ◽  
Light Curves ◽  
Optical Counterpart ◽  
Wave Source ◽  
Gamma Ray Burst ◽  
Nir Light ◽  
First Time ◽  
Short Grbs

ABSTRACT Multimessenger astronomy received a great boost following the discovery of kilonova (KN) AT2017gfo, the optical counterpart of the gravitational wave source GW170817 associated with the short gamma-ray burst GRB 170817A. AT2017gfo was the first KN that could be extensively monitored in time using both photometry and spectroscopy. Previously, only few candidates have been observed against the glare of short GRB afterglows. In this work, we aim to search the fingerprints of AT2017gfo-like KN emissions in the optical/NIR light curves of 39 short GRBs with known redshift. For the first time, our results allow us to study separately the range of luminosity of the blue and red components of AT2017gfo-like kilonovae in short GRBs. In particular, the red component is similar in luminosity to AT2017gfo, while the blue KN can be more than 10 times brighter. Finally, we exclude a KN as luminous as AT2017gfo in GRBs 050509B and 061201.

scholarly journals J-GEM follow-up observations to search for an optical counterpart of the first gravitational wave source GW150914

2016 ◽  
Vol 68 (4) ◽  
pp. L9 ◽  
Author(s):  
Tomoki Morokuma ◽  
Masaomi Tanaka ◽  
Yuichiro Asakura ◽  
Fumio Abe ◽  
Paul J. Tristram ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Optical Counterpart ◽  
Wave Source

scholarly journals Pan-STARRS and PESSTO search for an optical counterpart to the LIGO gravitational-wave source GW150914

2016 ◽  
Vol 462 (4) ◽  
pp. 4094-4116 ◽  
Author(s):  
S. J. Smartt ◽  
K. C. Chambers ◽  
K. W. Smith ◽  
M. E. Huber ◽  
D. R. Young ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Optical Counterpart ◽  
Wave Source

scholarly journals GRANDMA: A NETWORK TO COORDINATE THEM ALL

2021 ◽  
Vol 53 ◽  
pp. 198-205
Author(s):  
S. Agayeva ◽  
S. Alishov ◽  
S. Antier ◽  
V. R. Ayvazian ◽  
J. M. Bai ◽  
...  
Keyword(s):  
Organizational Structure ◽  
Gravitational Wave ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
International Project ◽  
Optical Counterpart ◽  
Transient Source ◽  
Transient Sources ◽  
Imaging Strategy ◽  
Initial Results

GRANDMA is an international project that coordinates telescope observations of transient sources with large localization uncertainties. Such sources include gravitational wave events, gamma-ray bursts and neutrino events. GRANDMA currently coordinates 25 telescopes (70 scientists), with the aim of optimizing the imaging strategy to maximize the probability of identifying an optical counterpart of a transient source. This paper describes the motivation for the project, organizational structure, methodology and initial results.

scholarly journals J-GEM follow-up observations of the gravitational wave source GW151226*

2016 ◽  
Vol 69 (1) ◽  
pp. 9 ◽  
Author(s):  
Michitoshi Yoshida ◽  
Yousuke Utsumi ◽  
Nozomu Tominaga ◽  
Tomoki Morokuma ◽  
Masaomi Tanaka ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Wave Source

scholarly journals Kilonova/Macronova Emission from Compact Binary Mergers

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Masaomi Tanaka
Keyword(s):  
Gravitational Wave ◽  
Near Infrared ◽  
Expansion Velocity ◽  
Infrared Excess ◽  
Wave Source ◽  
Compact Binary ◽  
Binary Mergers ◽  
Infrared Wavelengths ◽  
Absolute Magnitudes ◽  
Review Current

We review current understanding of kilonova/macronova emission from compact binary mergers (mergers of two neutron stars or a neutron star and a black hole). Kilonova/macronova is emission powered by radioactive decays ofr-process nuclei and it is one of the most promising electromagnetic counterparts of gravitational wave sources. Emission from the dynamical ejecta of ~0.01M⊙is likely to have a luminosity of ~1040–1041 erg s−1with a characteristic timescale of about 1 week. The spectral peak is located in red optical or near-infrared wavelengths. A subsequent accretion disk wind may provide an additional luminosity or an earlier/bluer emission if it is not absorbed by the precedent dynamical ejecta. The detection of near-infrared excess in short GRB 130603B and possible optical excess in GRB 060614 supports the concept of the kilonova/macronova scenario. At 200 Mpc distance, a typical peak brightness of kilonova/macronova with0.01M⊙ejecta is about 22 mag and the emission rapidly fades to >24 mag within ~10 days. Kilonova/macronova candidates can be distinguished from supernovae by (1) the faster time evolution, (2) fainter absolute magnitudes, and (3) redder colors. Since the high expansion velocity (v~0.1–0.2c) is a robust outcome of compact binary mergers, the detection of smooth spectra will be the smoking gun to conclusively identify the gravitational wave source.

FIRST COINCIDENCE SEARCH AMONG PERIODIC GRAVITATIONAL WAVE SOURCE CANDIDATES USING VIRGO DATA

2008 ◽  
Author(s):  
F. ACERNESE ◽  
P. AMICO ◽  
M. ALSHOURBAGY ◽  
F. ANTONUCCI ◽  
S. AOUDIA ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Wave Source

scholarly journals A challenge to identify an optical counterpart of the gravitational wave event GW151226 with Hyper Suprime-Cam†

2017 ◽  
Vol 70 (1) ◽  
Author(s):  
Yousuke Utsumi ◽  
Nozomu Tominaga ◽  
Masaomi Tanaka ◽  
Tomoki Morokuma ◽  
Michitoshi Yoshida ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Optical Counterpart ◽  
Wave Event
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