论文标题

suhora山高节奏光度测量T托里型星星

Mount Suhora high cadence photometric survey of T Tauri-type stars

论文作者

Siwak, Michał, Dróżdż, Marek, Gut, Karol, Winiarski, Maciej, Ogłoza, Waldemar, Stachowski, Grzegorz

论文摘要

提出了北半球可用的121个预元序列星的高振动多色观测结果。这项调查的目的是检测这些年轻恒星的掩盖引起的类似透明的特征,并通过近距离行星和/或尘土飞扬的团块掩盖了吸积引起的热点。尽管未检测到没有行星的转运,但我们的数据允许确定某些T牛族星星的旋转周期,这表征了在几分钟到几天之间在经典的T托里型恒星中运行的吸积过程,以及由尘土飞扬的圆盘散发的大规模倾角。

Results of high-cadence multi-colour observations of 121 pre-main sequence stars available from the northern hemisphere are presented. The aim of this survey was to detect transit-like signatures caused by occultation of these young stars and their accretion-induced hot spots by close-in planets and/or dusty clumps. Although none planetary transits were detected, our data allow to determine rotational periods for some T Tauri stars, characterise accretion processes operating in classical T Tauri-type stars in time scales ranging from a few minutes to days, as well as the large-scale dips caused by dusty warped discs.

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