The nova emerged in Centaurs became brighter around October 17, but, as it was still dark, we took a few days to analyze observation data, then reported its location information to the world at around 8:00 p.m. on Oct. 20 (Wed., Japan Standard Time) through the Astronomer's Telegram (ATel No.2959.) Upon receiving this report, NASA's astronomical satellite "Swift" (*1) conducted an urgent tracking and observation from midnight October 21 (JST.)
As a result, the nova was confirmed to be a unprecedented bright X-ray source. It is predicted to be highly possible that the nova is either a neutron star with a companion star of a massive star which exists extremely far away, over several ten thousands light-years, in the Galaxy, or a black hole.
With the discovery this time, the MAXI proved its capability of discovering a X-ray nova existing far away in the Galaxy.
The MAXI team will continue its observations in cooperation with the Swift satellite to elucidate more details of this nova. It is named "MAXI J1409-619."
*1 Gamma-ray burst observation satellite launched on Nov. 20, 2004.
This discovery was mainly conducted by Assistant Professor Kazutaka Yamaoka of Aoyama Gakuin University (also a member of the MAXI team) and Dr. Jamie A. Kennea of Penn State University.
http://kibo.jaxa.jp/en/experiment/ef/maxi/ (MAXI mission site)
http://iss.jaxa.jp/en/ (International Space Station/Kibo Information Center)
http://maxi.riken.jp/top/ (Riken MAXI site)
Labels: MAXI J1409-619