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13 CO/C 18 O gradients across the disks of nearby spiral galaxies

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We use the IRAM Large Program EMPIRE and new high-resolution ALMA data to measure 13 CO(1-0)/C 18 O(1-0) intensity ratios across nine nearby spiral galaxies. These isotopologues of 12 CO are typically optically thin across most of the area in galaxy disks, and this ratio allows us to gauge their rel...

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Main Authors: Jiménez-Donaire, Maria Jesús (Author) , Cormier, Diane (Author) , Bigiel, Frank (Author)
Format: Article (Journal)
Language:English
Published: 2017 February 17
In: The astrophysical journal. Part 2, Letters
Year: 2017, Volume: 836, Issue: 2, Pages: 6
ISSN:2041-8213
DOI:10.3847/2041-8213/836/2/L29
Online Access:Verlag, Volltext: http://dx.doi.org/10.3847/2041-8213/836/2/L29
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Author Notes:María J. Jiménez-Donaire, Diane Cormier, Frank Bigiel, Adam K. Leroy, Molly Gallagher, Mark R. Krumholz, Antonio Usero, Annie Hughes, Carsten Kramer, David Meier, Eric Murphy, Jérôme Pety, Eva Schinnerer, Andreas Schruba, Karl Schuster, Kazimierz Sliwa, and Neven Tomicic
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13 CO/C 18 O gradients across the disks of nearby spiral galaxies by Jiménez-Donaire, Maria Jesús (Author) , Cormier, Diane (Author) , Bigiel, Frank (Author) ,


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