The Infrared and Radio Fluxes Densities of Galactic HII Regions

We derive infrared and radio flux densities of all ~1000 known Galactic HII regions in the Galactic longitude range 17.5 < l < 65 degree. Our sample comes from the Wide-Field Infrared Survey Explorer (WISE) catalog of Galactic \hii regions \citep{anderson2014}. We compute flux densities at six...

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Bibliographic Details
Published in:arXiv.org 2017-08
Main Authors: Makai, Z, Anderson, L D, Mascoop, J L, Johnstone, B
Format: Article
Language:English
Subjects:
Color
Cosmic dust
Criteria
Flux density
Fluxes
Galaxies
Infrared astronomy
Personal computers
Radio
Star formation
Wavelengths
Wide-field Infrared Survey Explorer
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Summary:We derive infrared and radio flux densities of all ~1000 known Galactic HII regions in the Galactic longitude range 17.5 < l < 65 degree. Our sample comes from the Wide-Field Infrared Survey Explorer (WISE) catalog of Galactic \hii regions \citep{anderson2014}. We compute flux densities at six wavelengths in the infrared (GLIMPSE 8 microns, WISE 12 microns and 22 microns, MIPSGAL 24 microns, and Hi-GAL 70 microns and 160 microns) and two in the radio (MAGPIS 20 cm and VGPS 21 cm). All HII region infrared flux densities are strongly correlated with their ~20 cm flux densities. All HII regions used here, regardless of physical size or Galactocentric radius, have similar infrared to radio flux density ratios and similar infrared colors, although the smallest regions (\(r
ISSN:2331-8422
DOI:10.48550/arxiv.1708.05359