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Infall and SiO emission in V838 Mon

M. T. Rushton·T. R. Geballe·A. Evans·B. Smalley·J. Th. van Loon·S. P. S. Eyres
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Abstract

We present moderate and high resolution infrared spectroscopy of the peculiar eruptive variable V838 Mon, which underwent a series of remarkable outbursts in early 2002. During the period covered by our observations, 2002 December-2003 December, the near-infrared spectrum continued to show many of the characteristics of a very cool supergiant. However, throughout this period the spectrum also revealed strong and variable SiO first overtone emission, and Paschen Beta emission. The 2003 December spectrum contained a series of Ti I lines with inverse P Cygni profiles. This is clear evidence that some material is falling inward towards the star.

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M. T. Rushton, T. R. Geballe, A. Evans, B. Smalley, J. Th. van Loon, S. P. S. Eyres. 2005-02-21. Infall and SiO emission in V838 Mon. https://doi.org/10.1111/j.1365-2966.2005.08936.x

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