Press Releases

DATE2022.07.13 #Press Releases

Researchers capture the first example of an extremely bright, and fast-evolving astronomical event in the distant universe


Overview of the press release

A team of astronomers have discovered a mysterious short-duration astronomical event, or transient, that is as bright as a superluminous supernova, but evolving much faster, reports a study in the Astrophysical Journal Letters published on July 12.


Image captionThe schematic light curves of MUSSES2020J and other typical energetic transients (green and orange points denote the stages that MUSSES2020J was observed by the 8.2-m Subaru and follow-up telescopes, respectively). HSC g, r, and i composite multicolor thumbnail image of the host galaxy is shown in the bottom-right corner. A blue cross indicates the location of MUSSES2020J, which is almost at the nucleus of the host galaxy. (Credit: Kavli IPMU)


Professor Mamoru Doi, Institute of Astronomy, School of Science, University of Tokyo, contributed to this research.

Specially Appointed Researcher Jiang Ji'an Jiang received his PhD in March 2019 from School of Science, the University of Tokyo.


To read the full press release, please visit the website of the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU).


Publication details

Journal  The Astrophysical Journal Letters
 MUSSES2020J: The Earliest Discovery of a Fast Blue Ultraluminous Transient at Redshift 1.063
 Ji-an Jiang, Naoki Yasuda, Keiichi Maeda, Nozomu Tominaga, Mamoru Doi, Zeljko Ivezić, Peter Yoachim, Kohki Uno, Takashi J. Moriya, Brajesh Kumar, Yen-Chen Pan, Masayuki Tanaka, Masaomi Tanaka, Ken’ichi Nomoto, Saurabh W. Jha, Pilar Ruiz-Lapuente, David Jones, Toshikazu Shigeyama, Nao Suzuki, Mitsuru Kokubo, Hisanori Furusawa, Satoshi Miyazaki, Andrew J. Connolly, D. K. Sahu, and G. C. Anupama