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SPATIALLY RESOLVED CHEMISTRY IN NEARBY GALAXIES. III. DENSE MOLECULAR GAS IN THE INNER DISK OF THE LIRG IRAS 04296+2923
- Source :
- ASTROPHYSICAL JOURNAL, vol 795, iss 2, Meier, DS; Turner, JL; & Beck, SC. (2014). SPATIALLY RESOLVED CHEMISTRY IN NEARBY GALAXIES. III. DENSE MOLECULAR GAS IN THE INNER DISK OF THE LIRG IRAS 04296+2923. ASTROPHYSICAL JOURNAL, 795(2). doi: 10.1088/0004-637X/795/2/107. UCLA: Retrieved from: http://www.escholarship.org/uc/item/0ft3f51h, The Astrophysical Journal, vol 795, iss 2
- Publication Year :
- 2014
- Publisher :
- eScholarship, University of California, 2014.
-
Abstract
- We present a survey of 3 mm molecular lines in IRAS 04296+2923, one of the brightest known molecular-line emitting galaxies, and one of the closest LIRGs. Data are from the Owens Valley and CARMA millimeter interferometers. Species detected at ~10 M_sun/yr and is traced by lines of HCN, HCO+, HNC, and CN. A correlation between HCN and star formation rate is observed on sub-kpc scales, consistent with global relations. Toward the nucleus, CN abundances are similar to those of HCN, indicating emission comes from a collection (~40-50) of moderate visual extinction, photon-dominated region clouds. The CO isotopic line ratios are unusual: CO(1-0)/^13CO(1-0) and CO(1-0)/C^18O(1-0) line ratios are large toward the starburst, as is commonly observed in LIRGs, but farther out in the disk these ratios are remarkably low (~<br />15 pages, 5 figures; Accepted for publication in the Astrophysical Journal
- Subjects :
- Astrochemistry
FOS: Physical sciences
Astrophysics
Astronomy & Astrophysics
Atomic
Physical Chemistry
chemistry.chemical_compound
Particle and Plasma Physics
Isotopologue
Nuclear
Ejecta
Physics
Luminous infrared galaxy
ISM [galaxies]
Star formation
astrochemistry
starburst [galaxies]
individual [galaxies]
individual (IRAS 04296+2923 [galaxies]
Molecular
Astronomy and Astrophysics
Astrophysics - Astrophysics of Galaxies
Galaxy
galaxies [radio lines]
Stars
individual (IRAS 04296+2923, 2MASX J04324860+2929578) [galaxies]
chemistry
2MASX J04324860+2929578)
13. Climate action
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
Astronomical and Space Sciences
Carbon monoxide
Physical Chemistry (incl. Structural)
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- ASTROPHYSICAL JOURNAL, vol 795, iss 2, Meier, DS; Turner, JL; & Beck, SC. (2014). SPATIALLY RESOLVED CHEMISTRY IN NEARBY GALAXIES. III. DENSE MOLECULAR GAS IN THE INNER DISK OF THE LIRG IRAS 04296+2923. ASTROPHYSICAL JOURNAL, 795(2). doi: 10.1088/0004-637X/795/2/107. UCLA: Retrieved from: http://www.escholarship.org/uc/item/0ft3f51h, The Astrophysical Journal, vol 795, iss 2
- Accession number :
- edsair.doi.dedup.....c36ebc89a699f575d0366f7cc24079d8