Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 486, Issue 4, Pages 4463-4472Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stz1146
Keywords
galaxies: evolution; galaxies: ISM; galaxies: kinematics and dynamics; galaxies: star formation
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Funding
- National Key R&D Program of China [2017YFA0402704, 2018YFA0404502]
- National Natural Science Foundation of China (NSFC) [11825302, 11733002, 11773013]
- Excellent Youth Foundation of the Jiangsu Scientific Committee [BK20150014]
- RSCF grant [19-12-00145]
- Alfred P. Sloan Foundation
- U.S. Department of Energy Office of Science
- Center for High-Performance Computing at the University of Utah
- Carnegie Institution for Science
- Chilean Participation Group
- French Participation Group
- Harvard-Smithsonian Center for Astrophysics
- Johns Hopkins University
- Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo
- Max-Planck-Institut fur Astrophysik (MPA Garching)
- Max-Planck-Institut fur Extraterrestrische Physik (MPE)
- New Mexico State University, New York University
- Shanghai Astronomical Observatory, United Kingdom Participation Group
- Yale University
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We analyse the intrinsic velocity dispersion properties of 648 star-forming galaxies observed by the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, to explore the relation of intrinsic gas velocity dispersions with star formation rates (SFRs), SFR surface densities (Sigma(SFR)), stellar masses, and stellar Mass surface densities (Sigma(*)). By combining with high z galaxies, we found that there is a good correlation between the velocity dispersion and the SFR as well as Sigma(SFR), But the correlation between the velocity dispersion and the stellar mass as well as Sigma(*), is moderate, By comparing our results with predictions of theoretical models, we found that the energy feedback from star formation processes alone and the gravitational instability alone cannot fully explain simultaneously the observed velocity-dispersion/SFR and velocity-dispersion/Sigma(SFR) relationships.
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