Estimation of C II and C II* column densities along Galactic sight-lines

Details Estimation of C II and C II* column densities along Galactic sight-lines Estimation of C II and C II* column densities along Galactic sight-lines

2010-11-03

arxiv.org/abs/1011.0806v1

Bull. Astr. Soc. India (2010) 38, 93-101

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

9 pages, 3 figures; Accepted for publication in BASI

Scientific paper

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 () 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.

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