Infall and SiO emission in V838 Mon
Astrophysics
2009-11-10 v1
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.
Keywords
Cite
@article{arxiv.astro-ph/0502410,
title = {Infall and SiO emission in V838 Mon},
author = {M. T. Rushton and T. R. Geballe and A. Evans and B. Smalley and J. Th. van Loon and S. P. S. Eyres},
journal= {arXiv preprint arXiv:astro-ph/0502410},
year = {2009}
}
Comments
5 pages, 4 figures, accepted by MNRAS