dc.contributor.author | Inam, SC | |
dc.contributor.author | Baykal, A | |
dc.contributor.author | Kiziloglu, U | |
dc.contributor.author | Kiziloglu, N | |
dc.contributor.author | BALMAN, Şölen | |
dc.date.accessioned | 2021-03-05T20:51:57Z | |
dc.date.available | 2021-03-05T20:51:57Z | |
dc.date.issued | 2005 | |
dc.identifier.citation | Baykal A., Kiziloglu U., Kiziloglu N., BALMAN Ş., Inam S., "X-ray outburst of 4U 0115+634 and ROTSE observations of its optical counterpart V635 Cas", ASTRONOMY & ASTROPHYSICS, cilt.439, ss.1131-1134, 2005 | |
dc.identifier.issn | 1432-0746 | |
dc.identifier.other | vv_1032021 | |
dc.identifier.other | av_d62327e4-f2aa-41f4-865b-faf28f0ebc40 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12627/141335 | |
dc.identifier.uri | https://doi.org/10.1051/0004-6361:20052968 | |
dc.description.abstract | ROTSE IIId ( The Robotic Optical Transient Experiment) observations of the X-ray binary system 4U 0115+634/V635 Cas obtained during 2004 June and 2005 January make it possible, for the first time, to study the correlation between optical and type II X-ray outbursts. The X-ray outburst sharply enhanced after periastron passage where the optical brightness was reduced by 0.3 mag for a few days. We interpret the sharp reduction of optical brightness as a sign of mass ejection from the outer parts of the disc of the Be star. After this sharp decrease, the optical brightness rose again and reached the pre-X-ray outburst level. Afterwards, a gradual decrease of the optical brightness followed until a minimum then a gradual increase started again. Qualitatively, the change of the optical lightcurve suggests a precession of the Be star disc of around a few hundred days. We also investigate the periodic signatures from the archival RXTE-ASM (Rossi X-ray Timing Explorer - All Sky Monitor) light curve covering a time span of similar to 9 years. We find significant orbital modulation in the ASM light curve during the type I X-ray outburst. | |
dc.language.iso | eng | |
dc.subject | Uzay bilimi | |
dc.subject | ASTRONOMİ VE ASTROFİZİK | |
dc.subject | Temel Bilimler | |
dc.subject | Astronomi ve Astrofizik | |
dc.subject | Fizik | |
dc.subject | Temel Bilimler (SCI) | |
dc.title | X-ray outburst of 4U 0115+634 and ROTSE observations of its optical counterpart V635 Cas | |
dc.type | Makale | |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | |
dc.contributor.department | , , | |
dc.identifier.volume | 439 | |
dc.identifier.issue | 3 | |
dc.identifier.startpage | 1131 | |
dc.identifier.endpage | 1134 | |
dc.contributor.firstauthorID | 2212634 | |