Dusty Cometary Globules in W5
Astrophysics
2009-11-13 v1
Abstract
We report the discovery of four dusty cometary tails around low mass stars in two young clusters belonging to the W5 star forming region. Fits to the observed emission profiles from 24 micron observations with the Spitzer Space Telescope give tail lifetimes < 30 Myr, but more likely < 5 Myr. This result suggests that the cometary phase is a short lived phenomenon, occurring after photoevaporation by a nearby O star has removed gas from the outer disk of a young low mass star (see also Balog et al. 2006; Balog et al. 2008).
Keywords
Cite
@article{arxiv.0809.1993,
title = {Dusty Cometary Globules in W5},
author = {X. P. Koenig and L. E. Allen and S. J. Kenyon and K. Y. L. Su and Z. Balog},
journal= {arXiv preprint arXiv:0809.1993},
year = {2009}
}
Comments
11 pages, 3 figures. Accepted for publication to ApJ Letters