Estimation of C II and C II* column densities along Galactic sight-lines
Astrophysics of Galaxies
2011-02-18 v1
Abstract
We present interstellar C II (1334.5323 \AA) and C II* (1335.7077 \AA) column density measurements along 14 Galactic sight-lines. These sight-lines sample a variety of Galactic disk environments and include paths that range nearly two orders of magnitude in average hydrogen densities (<n(H)>) along the lines of sight. Five of the sight-lines show super-Solar gas phase abundances of carbon. Our results show that the excess carbon along these sight-lines may result from different mechanisms taking place in the regions associated with these stars.
Keywords
Cite
@article{arxiv.1011.0806,
title = {Estimation of C II and C II* column densities along Galactic sight-lines},
author = {Veena S. Parvathi and Ulysses J. Sofia and Jayant Murthy and B. R. S. Babu},
journal= {arXiv preprint arXiv:1011.0806},
year = {2011}
}
Comments
9 pages, 3 figures; Accepted for publication in BASI