VizieR Online Data Catalog: HI-to-H2 transition in local diffuse ISM dataset (Bellomi+, 2020)

The observational sample studied in this work is built from the database of Gudennavar et al. (2012, Cat. J/ApJS/199/8) who compiled existing data of atomic and molecular lines observed in absorption toward several thousand sources, including stars and AGNs. Limiting this catalog to observations or tentative detections of HI, H2, and of the reddening E(B-V), and removing the data associated to the Magellanic Cloud or high redshift extragalactic environments (e.g., Tumlinson et al., 2002ApJ...566..857T; Cartledge et al., 2005ApJ...630..355C; Welty & Crowther, 2010, Cat. J/MNRAS/404/1321; Noterdaeme et al., 2007A&A...469..425N), we obtain a sample of 360 sources which form, to date, the most complete set of observations of the HI-to-H2 transition in the local diffuse ISM.

(2 data files).