A Compilation of Interstellar Column Densities
Abstract
We have collated absorption line data toward 3008 stars in order to create a unified database of interstellar column densities. These data have been taken from a number of different published sources and include many different species and ionizations. The preliminary results from our analysis show a tight relation [N(H)/E(B - V) = 6.12 × 1021] between N(H) and E(B - V). Similar plots have been obtained with many different species, and their correlations along with the correlation coefficients are presented.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- March 2012
- DOI:
- 10.1088/0067-0049/199/1/8
- Bibcode:
- 2012ApJS..199....8G
- Keywords:
-
- dust;
- extinction;
- ISM: abundances;
- ISM: clouds