H I absorption toward H II regions at small Galactic longitudes

C. Jones; J. M. Dickey; J. R. Dawson; N. M. McClure-Griffiths; L. D. Anderson; T. M. Bania

doi:10.1088/0004-637X/774/2/117

H I absorption toward H II regions at small Galactic longitudes

C. Jones, J. M. Dickey, J. R. Dawson, N. M. McClure-Griffiths, L. D. Anderson, T. M. Bania

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Abstract

We 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.

Original language	English
Article number	117
Pages (from-to)	1-18
Number of pages	18
Journal	The Astrophysical Journal
Volume	774
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/774/2/117
Publication status	Published - 10 Sept 2013
Externally published	Yes

Bibliographical note

Copyright 2013 The American Astronomical Society. First published in the Astrophysical Journal, 774(2), 117, 2013. The original publication is available at https://doi.org/10.1088/0004-637X/774/2/117, published by IOP Publishing. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

Galaxy: structure
Hii regions

Access to Document

10.1088/0004-637X/774/2/117

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Cite this

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title = "H I absorption toward H II regions at small Galactic longitudes",

abstract = "We 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.",

keywords = "Galaxy: structure, Hii regions",

author = "C. Jones and Dickey, \{J. M.\} and Dawson, \{J. R.\} and McClure-Griffiths, \{N. M.\} and Anderson, \{L. D.\} and Bania, \{T. M.\}",

note = "Copyright 2013 The American Astronomical Society. First published in the Astrophysical Journal, 774(2), 117, 2013. The original publication is available at https://doi.org/10.1088/0004-637X/774/2/117, published by IOP Publishing. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

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doi = "10.1088/0004-637X/774/2/117",

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T1 - H I absorption toward H II regions at small Galactic longitudes

AU - Jones, C.

AU - Dickey, J. M.

AU - Dawson, J. R.

AU - McClure-Griffiths, N. M.

AU - Anderson, L. D.

AU - Bania, T. M.

N1 - Copyright 2013 The American Astronomical Society. First published in the Astrophysical Journal, 774(2), 117, 2013. The original publication is available at https://doi.org/10.1088/0004-637X/774/2/117, published by IOP Publishing. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2013/9/10

Y1 - 2013/9/10

N2 - We 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.

AB - We 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.

KW - Galaxy: structure

KW - Hii regions

UR - https://www.scopus.com/pages/publications/84883643743

U2 - 10.1088/0004-637X/774/2/117

DO - 10.1088/0004-637X/774/2/117

M3 - Article

AN - SCOPUS:84883643743

SN - 0004-637X

VL - 774

SP - 1

EP - 18

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

M1 - 117

ER -

H I absorption toward H II regions at small Galactic longitudes

Abstract

Bibliographical note

Keywords

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