Short and long term near-infrared spectroscopic variability of eruptive protostars from VVV

Guo Zhen,Lucas P. W.,Peña C. Contreras, Kurtev R. G.,Smith L. C.,Borissova J.,Alonso-García J.,Minniti D.,Garatti A. Caratti o,Froebrich D.

Monthly Notices of the Royal Astronomical Society（2020）

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摘要

Numerous eruptive variable young stellar objects (YSOs), mostly Class I systems, were recently detected by the near-infrared Vista Variables in the Via Lactea (VVV) survey. We present an exploratory near-infrared spectroscopic variability study of 14 eruptive YSOs. The variations were sampled over one-day and one-to-two-year intervals and analysed in combination with VVV light curves. CO overtone ...

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关键词

stars: pre-main sequence,stars: protostars,stars: variables: T Tauri,Herbig Ae/Be,infrared: stars

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