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Carma CO observations of three extremely metal-poor, star-forming galaxies

Warren, Steven R.; Molter, Edward M.; Cannon, John M.; Bolatto, Alberto; Adams, Elizabeth A.K.; Bernstein-Cooper, Elijah Z.; Giovanelli, Riccardo; Haynes, Martha P.; Herrera-Camus, Rodrigo; Jameson, Katherine; McQuinn, Kristen B.W.


We present sensitive CO (J = 1 0) emission line observations of the three metal-poor dwarf irregular galaxies Leo P (Z ∼ 3% Zo), Sextans A (Z ∼ 7.5% Zo), and Sextans B (Z ∼ 7.5% Zo), all obtained with the Combined Array for Millimeter-wave Astronomy interferometer. While no CO emission was detected, the proximity of the three systems allows us to place very stringent (4σ) upper limits on the CO luminosity (LCO) in these metal-poor galaxies. We find the CO luminosities to be LCO < 2900 K km s-1...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.1088/0004-637X/814/1/30
Access Rights: Open Access


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