VRI Light Curves of SS 433: Photometry and Model

Publications of the Astronomical Society of Japan

Awano, Yumi²  Tsuda, Kazumi²  Fukue, Jun²  Tanabe, Kazuhito²  Yamada, Yasushi²  Honda, Satoshi²  Tajima, Yukiko²  Arimoto, Jun'ichi²  Kato, Taichi³  Watanabe, Yoichi²  Ishikawa, Kaoru²  Sakaguchi, Toshiki²  Matsumoto, Katsura²  Nakashima, Rika²  Yokoo, Takeo²  Okugami, Masamitsu²  Kawai, Nobuyuki¹ 

[1] The Institute of Physical and Chemical Research, Hirosawa, Wako, Saitama 351-01 E-mail(JF):;Astronomical Institute, Osaka Kyoiku University, Asahigaoka, Kashiwara, Osaka 582;Department of Astronomy, Faculty of Science, Kyoto University, Sakyo-ku, Kyoto 606-01

关键词: "Accretion disks";    "Interstellar: extinction";    Photometry;    "Stars: binaries";    "Stars: individual (SS 433)";   

DOI  :  10.1093/pasj/49.1.93

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

WepresenttheresultsofVRICCDphotometricobservationsofSS433andVRIlight-curvemodelingsforSS433.Observationswerecarriedoutinthefallof1995usingthe51-cmrelfectoratOsakaKyoikuUniversity.Threecyclesofthebinaryphasewerecovered.ThemeanmagnitudesandcolorsduringtheobservationalperiodswereV=14.0,R=11.1,I=10.5;V–R=2.88,V–I=3.50,R–I=0.62.OnOctober17and18astrongflarewasobserved.TheoreticallightcurveswerealsocalculatedusingamodelinwhichSS433consistsofageometricallythicktorusaroundacompactstarandacompanionstarfillingtheRochelobe.InthetoruspictureVRIlightcurveswerefirstcalculated;forappropriateparametersVRImodellightcurveswellreproducetheobservationalprofiles.Inaddition,theextinctionwasfirstderivedfromthemagnitudedifferencebetweentheobervationandthemodel;AV∼6–7,AR∼3–4,andAI∼3.Thesevaluesareingoodagreementwiththoseofapreviousobservation.

【 授权许可】

Unknown