アキタヤ　ヒロシ   秋田谷　洋    所属   千葉工業大学  天文学研究センター 天文学研究センター    職種   上席研究員
言語種別	英語
発行・発表の年月	2019/11/20
形態種別	学術雑誌
標題	Near-infrared monitoring of the accretion outburst in the massive young stellar object S255-NIRS3
執筆形態	共著
掲載誌名	Publications of the Astronomical Society of Japan
掲載区分	国外
出版社・発行元	Oxford University Press (OUP)
巻・号・頁	72(1),pp.4
著者・共著者	Mizuho Uchiyama, Takuya Yamashita, Koichiro Sugiyama, Tatsuya Nakaoka, Miho Kawabata, Ryosuke Itoh, Masayuki Yamanaka, Hiroshi Akitaya, Koji Kawabata, Yoshinori Yonekura, Yu Saito, Kazuhito Motogi, Kenta Fujisawa
概要	We followed up the massive young stellar object S255-NIRS3 (= S255-IRS1b) during its recent accretion outburst event in the $K_{\rm s}$ band with Kanata/HONIR for four years after its burst and obtained a long-term light curve. This is the most complete near-infrared light curve of the S255-NIRS3 burst event that has ever been presented. The light curve showed a steep increase reaching a peak flux that was 3.4 mag brighter than the quiescent phase and then a relatively moderate year-scale fading until the last observation, similar to that of the accretion burst events such as EXors found in lower-mass young stellar objects.
DOI	10.1093/pasj/psz122
ISSN	00046264
NAID	1361418518446987648