An AST/RO Survey of CO(4-3) in ultracompact HII regions

2003/06/03 by W. Walsh, Wilfred Walsh, Walsh, Wilfred
Chemistry · Earth and Planetary Sciences · Environmental Science · Physics and Astronomy · #Astrophysics #Astrophysics (astro-ph) #Atmospheric Ozone and Climate #Atmospheric and Environmental Gas Dynamics #Environmental science #FOS: Physical sciences #Physics #Spectroscopy and Laser Applications #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0306075

published in arXiv (Cornell University) (Cornell University) · To be submitted to ApJS

arxiv created 2003/06/03 · openalex publication_date 2003/06/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) has been used to observe 78 of the IRAS point sources identified by Bronfman et al. (1996) as likely ultracompact HII regions. Results for the CO(4-3) line at 461.041GHz are presented. The 74 sources detected are bright and in many cases compact, making them potentially suitable as pointing calibrators for single dish submillimeter telescopes.

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