国立天文台科学研究部

2023.4.13 highlights

Does Light Emerge from a Black Hole Merger?: Subaru+GTC Collaboration to Target Gravitational Wave Events

A research team led by researchers from the National Astronomical Observatory of Japan (NAOJ) and the Instituto de Astrofísica de Canarias (IAC) in Spain performed follow-up observations of a gravitational wave event using the Subaru Telescope and the Gran Telescopio CANARIAS (GTC) to search for electromagnetic emission from a binary black hole coalescence. The collaboration between the wide-field deep imaging capability of the Subaru Telescope and the observing flexibility of GTC played an important role in this study. The cooperative follow-up of a large number of gravitational wave events will elucidate the nature of these enigmatic phenomena.

Possible arrival direction of GW200224_22234 (90% probability), represented by a white line, determined by gravitational wave telescopes and the area observed by HSC, represented by red circles. A red circle represents the size of HSC’s field of view, equivalent to nine full moons. The yellow circle shows the size of a full moon for comparison. (Credit: NAOJ/Tominaga/PanSTARRS)

For more information, please see the following links,

Subaru Telescope (ENG)- https://subarutelescope.org/en/results/2023/04/12/3254.html