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| Paper: |
Unveiling the Unseen: Challenges in Identifying Electromagnetic Counterparts to Gravitational Waves |
| Volume: |
536, The Twelfth Pacific Rim Conference on Stellar Astrophysics |
| Page: |
23 |
| Authors: |
Noysena, K.; Tanasan, M.; Komonjinda, S.; Boer, M.; Klotz, A. |
| Abstract: |
The detection of gravitational waves (GWs) from advanced LIGO and advanced Virgo interferometers opened a new era for multi-messenger observations, especially with the coincident detection between the GW event and the gamma-ray bursts (GRB) detection. We report the results of optical follow-up observations of GW events detected by LIGO and Virgo and the limitation of optical observation by small telescopes. Binary black hole (BBH) and binary neutron star (BNS) merger events detected in the first, second, and third observing runs (O1, O2, and O3) were analyzed with a developed processing pipeline. No credible optical sources associated with GW events were detected, and limits were set on the conversion efficiency of energy emitted by GWs to optical light. The fraction of energy emitted by GWs converted into optical light is less than 10−5 for BBH mergers. The limiting magnitude and timely observations allowed us to reduce the hypothesis of association between GWs and GRBs in the case of BBH mergers. However, we did not have enough cases to definitively exclude the association between GWs and GRBs for black hole mergers. Due to their distance, no optical observations were available for the five BNS mergers detected in O3. This pioneering experience showed the potential of GW observation in optical follow-up campaigns and highlighted the importance of future GW runs for future observations. |
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