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arXiv · 1011.0806

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

Veena S. Parvathi·Ulysses J. Sofia·Jayant Murthy·B. R. S. Babu
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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 ( ) 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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Veena S. Parvathi, Ulysses J. Sofia, Jayant Murthy, B. R. S. Babu. 2010-11-03. Estimation of C II and C II* column densities along Galactic sight-lines. https://arxiv.org/abs/1011.0806

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