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Close Major-merger Pairs at z 0: Bulge-to-total Ratio and Star Formation Enhancement

文献类型：期刊论文

作者He, Chuan1,2; Xu, Cong Kevin1; Domingue, Donovan3; Cao, Chen4,5; Huang, Jia-sheng1
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2022-08-01
卷号261期号:2页码:14
ISSN号0067-0049
DOI10.3847/1538-4365/ac73ec
英文摘要We present a study of the bulge-to-total ratio (B/T) of a Ks-band-selected sample of 88 close major-merger pairs of galaxies (H-KPAIR), based on two-dimensional decompositions of SDSS r-band images with galfit. We investigate the dependence of the interaction-induced specific star formation rate enhancement (sSFR(enh)) on the B/T ratio, and the effects of this dependence on the differences between star-forming galaxies (SFGs) in spiral+spiral (S+S) and spiral+elliptical (S+E) pairs. Of all the 132 spiral galaxies in H-KPAIR, the 44 in S+E pairs show higher B/T than those in the 44 S+S pairs, with means of B/T = 0.35 +/- 0.05 and B/T = 0.26 +/- 0.03, respectively. There is a strong negative dependence of sSFR(enh) on the B/T ratio, and only paired SFGs with B/T < 0.3 show significant (>5 sigma) enhancement. Paired SFGs in S+S pairs show a similar trend, and many disky SFGs (B/T < 0.1) in S+S pairs have strong sSFR enhancements (sSFR(enh) > 0.7 dex). For SFGs in S+E pairs, the sSFR has no clear B/T dependence, nor any significant enhancement in any B/T bin. Disky SFGs in S+S pairs show significant (>4 sigma) enhancement in molecular gas content (M-H2/M-star), while SFGs in S+E pairs have no such enhancement in any B/T bin. No significant enhancement of the total gas content (M-gas/M-star) is found in any B/T bin for paired galaxies. The star formation efficiency of either the total gas (SFEgas = SFR/M-gas) or molecular gas (SFEH2 = SFR/M-H2) does not depend on the B/T ratio. The only significant (> 4 sigma) SFE enhancement found for paired SFGs is the SFEgas for disky SFGs in S+S pairs.
WOS关键词DIGITAL SKY SURVEY ; IRAM LEGACY SURVEY ; GALAXY PAIRS ; MOLECULAR GAS ; INFRARED-EMISSION ; MASSIVE GALAXIES ; FORMATION RATES ; COLD GASS ; ARP 142 ; DUST
资助项目National Key R&D Program of China[2017YFA0402704] ; National Natural Science Foundation of China (NSFC)[11873055] ; National Natural Science Foundation of China (NSFC)[11933003] ; Chinese Academy of Sciences (CAS) ; NSFC[11733006] ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Chilean Participation Group ; French Participation Group, Instituto de Astrofisica de Canarias ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; New Mexico State University ; New York University ; University of Notre Dame ; Observatorio Nacional/MCTI ; Ohio State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; University of Arizona ; University of Colorado Boulder ; University of Oxford ; University of Portsmouth ; University of Utah ; University of Virginia ; University of Washington ; University of Wisconsin ; Vanderbilt University ; Yale University ; National Aeronautics and Space Administration ; National Science Foundation
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000832748000001
出版者IOP Publishing Ltd
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group, Instituto de Astrofisica de Canarias ; French Participation Group, Instituto de Astrofisica de Canarias ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatorio Nacional/MCTI ; Observatorio Nacional/MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group, Instituto de Astrofisica de Canarias ; French Participation Group, Instituto de Astrofisica de Canarias ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatorio Nacional/MCTI ; Observatorio Nacional/MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group, Instituto de Astrofisica de Canarias ; French Participation Group, Instituto de Astrofisica de Canarias ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatorio Nacional/MCTI ; Observatorio Nacional/MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Carnegie Institution for Science, Carnegie Mellon University, Center for Astrophysics | Harvard & Smithsonian (CfA) ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group, Instituto de Astrofisica de Canarias ; French Participation Group, Instituto de Astrofisica de Canarias ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astronomie (MPIA Heidelberg) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut fur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatorio Nacional/MCTI ; Observatorio Nacional/MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation
源URL[http://ir.bao.ac.cn/handle/114a11/87902]  
专题中国科学院国家天文台
通讯作者Xu, Cong Kevin
作者单位1.Chinese Acad Sci, Natl Astron Observ China, South Amer Ctr Astron, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Georgia Coll & State Univ, CBX 82, Milledgeville, GA 31061 USA
4.Shandong Univ, Sch Space Sci & Phys, Weihai 264209, Shandong, Peoples R China
5.Shandong Univ, Inst Space Sci, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai 264209, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 He, Chuan,Xu, Cong Kevin,Domingue, Donovan,et al. Close Major-merger Pairs at z 0: Bulge-to-total Ratio and Star Formation Enhancement[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2022,261(2):14.
APA He, Chuan,Xu, Cong Kevin,Domingue, Donovan,Cao, Chen,&Huang, Jia-sheng.(2022).Close Major-merger Pairs at z 0: Bulge-to-total Ratio and Star Formation Enhancement.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,261(2),14.
MLA He, Chuan,et al."Close Major-merger Pairs at z 0: Bulge-to-total Ratio and Star Formation Enhancement".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 261.2(2022):14.

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来源：国家天文台

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