Photometric and spectroscopic variability of the FUor star V582 Aurigae
Photometric and spectroscopic variability of the FUor star V582 Aurigae
复制标题
FUor 星 V582 Aurigae 的光度和光谱变化
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
K. Stoyanov
中科院分区：
文献类型：
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作者：
E. Semkov;S. Peneva;U. Munari;M. Dennefeld;H. Mito;D. Dimitrov;S. Ibryamov;K. Stoyanov
摘要：本文介绍了对主序前爆发的星星V582 Aur的光学光度和光谱观测结果。几年前，当它被怀疑为一个可能的FU Orionis天体时，曾报道过该星星的变化。由于目前已知的FUors的数量很少，这种类型的新对象是后续光度和光谱observations.Methods的理想目标。我们进行了BVRI CCD光度观测在该领域的V582 Aur从200年8月9日至2013年2月。在此期间，我们获得了V582 Aur的高、中、低分辨率光谱。为了研究目标爆发前的变化并构建其历史光变曲线，我们在照相底片收藏中搜索了档案观测。利用BVRI标定的V582 Aur视场中的14颗恒星序列，分析了CCD和照相观测结果。V582 Aur爆发前的照相观测显示出金牛座T星典型的低振幅光变，档案照相观测表明亮度的增加开始于1984年末或1985年初，星星在1986年1月达到最大亮度。V582 Aur的光谱类型可以定义为G0 I，具有H α和Na I D线的强P Cyg轮廓，这是典型的FU Orionis天体。我们的BVRI测光观测显示大振幅变化
Kiso Observatory, Institute of Astronomy, School of Science, the University of Tokyo, Mitake-mura, Kiso-gun, Nagano-ken 397-0101, JapanReceived ; acceptedABSTRACTAims.We present results from optical photometric and spectroscopic observations of the eruptive pre-main sequence star V582 Aur.Variability of the star was reported a few years ago when it was suspected as a possible FU Orionis object. Due to the small numberof currently known FUors, a new object of this type is ideal target for follow-up photometric and spectroscopic observations.Methods.We carried out BVRI CCD photometric observations in the field of V582 Aur from 200 9 August to 2013 February. Weacquired high-, medium-, and low-resolution spectroscopyof V582 Aur during this period. To study the pre-outburst variability of thetarget and construct its historical light curve, we searched for archival observations in photographic plate collections. Both CCD andphotographic observations were analyzed using a sequence of 14 stars in the field of V582 Aur calibrated in BVRI.Results. The pre-outburst photographic observations of V582 Aur show low-amplitude light variations typical of T Tauri stars.Archival photographic observations indicate that the increase in brightness began in late 1984 or early 1985 and the star reached themaximum level of brightness at 1986 January. The spectral type of V582 Aur can be defined as G0I with strong P Cyg profiles ofHα and Na I D lines, which are typical of FU Orionis objects. Our BVRI photometric observations show large amplitude variations∆V ∼ 2
影响因子：
3.2
作者：
V. Mannings;A. Boss;S. Russell
通讯作者：
V. Mannings;A. Boss;S. Russell