VizieR Online Data Catalog: NaI and CaII interstellar absorption (Welsh+, 2010)
Abstract
All newly recorded spectra were analyzed by means of a multi-component line profile-fitting program, in most cases using simultaneous fits to the line doublets. Normalized absorption profiles were fitted by varying the velocity, doppler width and column density for all intervening interstellar clouds. The resulting total column densities were then used in conjunction with the Hipparcos distances of the target stars to construct inversion maps of the 3D spatial density distribution of the NaI and CaII bearing gas.
(2 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- November 2009
- DOI:
- 10.26093/cds/vizier.35100054
- Bibcode:
- 2009yCat..35100054W
- Keywords:
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- Stars: nearby;
- Abundances;
- Interstellar medium