Infall and SiO emission in V838 Mon

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

Research output: Contribution to journalArticlepeer-review


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 Paβ 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.

Original languageEnglish
Pages (from-to)624-628
JournalMonthly Notices of the Royal Astronomical Society
Issue number2
Publication statusPublished - 11 May 2005


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