Article_Jones_2013_HI_Absorb_Toward_HII_Smal_Galac_Longit.pdf (1.28 MB)
HI absorption toward HII regions at small galactic longitudes
journal contribution
posted on 2023-05-17, 19:18 authored by Jones, C, John DickeyJohn Dickey, Joanne Dawson, McClure-Griffiths, NM, Anderson, LD, Bania, TMWe make a comprehensive study of H I absorption toward H II regions located within |l| < 10°. Structures in the extreme inner Galaxy are traced using the longitude-velocity space distribution of this absorption. We find significant H I absorption associated with the Near and Far 3 kpc Arms, the Connecting Arm, Bania's Clump 1, and the H I Tilted Disk. We also constrain the line-of-sight distances to H II regions, by using H I absorption spectra together with the H II region velocities measured by radio recombination lines.
History
Publication title
Astrophysical JournalVolume
774Article number
117Number
117Pagination
1-18ISSN
0004-637XDepartment/School
School of Natural SciencesPublisher
Univ Chicago PressPlace of publication
1427 E 60Th St, Chicago, USA, Il, 60637-2954Rights statement
Copyright 2013 The American Astronomical SocietyRepository Status
- Open