PMO OpenIR  > 星系中的恒星形成研究团组
HERSCHEL OBSERVATIONS OF MAJOR MERGER PAIRS AT z=0: DUST MASS AND STAR FORMATION
Cao, Chen1,2,3; Xu, Cong Kevin3; Domingue, Donovan4; Buat, Veronique5,6; Cheng, Yi-Wen7; Gao, Yu8; Huang, Jiasheng9; Jarrett, Thomas H.10; Lisenfeld, Ute11; Lu, Nanyao3; Mazzarella, Joe3; Sun, Wei-Hsin12,13; Wu, Hong14; Yun, Min S.15; Ronca, Joseph4; Jacques, Allison4
2016-02-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume222Issue:2
AbstractWe present Herschel PACS and SPIRE far-infrared (FIR) and submillimeter imaging observations for a large K-band selected sample of 88 close major-merger pairs of galaxies (H-KPAIRs) in 6 photometric bands (70, 100, 160, 250, 350, and 500 mu m). Among 132 spiral galaxies in the 44 spiral-spiral (S+S) pairs and 44 spiral-elliptical (S+ E) pairs, 113 are detected in at least 1 Herschel band. The star formation rate (SFR) and dust mass (M-dust) are derived from the IR SED fitting. The mass of total gas (M-gas) is estimated by assuming a constant dust-to-gas mass ratio of 0.01. Star-forming spiral galaxies (SFGs) in S+ S pairs show significant enhancements in both specific star formation rate (sSFR) and star formation efficiency (SFE), while having nearly the same gas mass compared to control galaxies. On the other hand, for SFGs in S+ E pairs, there is no significant sSFR enhancement and the mean SFE enhancement is significantly lower than that of SFGs in S+ S pairs. This suggests an important role for the disk-disk collision in the interaction-induced star formation. The M-gas of SFGs in S+ E pairs is marginally lower than that of their counterparts in both S+ S pairs and the control sample. Paired galaxies with and without interaction signs do not differ significantly in their mean sSFR and SFE. As found in previous works, this much larger sample confirms that the primary and secondary spirals in S+S pairs follow a Holmberg effect correlation on sSFR.
KeywordGalaxies: Evolution Galaxies: General Galaxies: Interactions Galaxies: Starburst
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3847/0067-0049/222/2/16
WOS KeywordDIGITAL SKY SURVEY ; ULTRALUMINOUS INFRARED GALAXIES ; SPECTRAL ENERGY-DISTRIBUTIONS ; ACTIVE GALACTIC NUCLEI ; INTERACTING GALAXIES ; FORMATION RATES ; METALLICITY RELATION ; FORMING GALAXIES ; COSMIC EVOLUTION ; BINARY GALAXIES
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000371304400002
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16164
Collection星系中的恒星形成研究团组
Affiliation1.Shandong Univ, Sch Space Sci & Phys, Weihai 264209, Shandong, Peoples R China
2.Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Shandong, Peoples R China
3.CALTECH, Ctr Infrared Proc & Anal, Pasadena, CA 91125 USA
4.Georgia Coll & State Univ, CBX 82, Milledgeville, GA 31061 USA
5.Univ Aix Marseille, LAM, 38 Rue F Joliot Curie, F-13388 Marseille 13, France
6.CNRS, UMR7326, 38 Rue F Joliot Curie, F-13388 Marseille 13, France
7.Natl Cent Univ, Inst Astron, Chungli 32054, Taiwan
8.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Peoples R China
9.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
10.Univ Cape Town, Dept Astron, ZA-7701 Rondebosch, South Africa
11.Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain
12.Natl Taiwan Univ, Inst Astrophys, Taipei, Taiwan
13.Natl Museum Nat Sci, Taipei, Taiwan
14.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
15.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA
Recommended Citation
GB/T 7714
Cao, Chen,Xu, Cong Kevin,Domingue, Donovan,et al. HERSCHEL OBSERVATIONS OF MAJOR MERGER PAIRS AT z=0: DUST MASS AND STAR FORMATION[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2016,222(2).
APA Cao, Chen.,Xu, Cong Kevin.,Domingue, Donovan.,Buat, Veronique.,Cheng, Yi-Wen.,...&Jacques, Allison.(2016).HERSCHEL OBSERVATIONS OF MAJOR MERGER PAIRS AT z=0: DUST MASS AND STAR FORMATION.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,222(2).
MLA Cao, Chen,et al."HERSCHEL OBSERVATIONS OF MAJOR MERGER PAIRS AT z=0: DUST MASS AND STAR FORMATION".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 222.2(2016).
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