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The Next Generation Fornax Survey (NGFS). II. The Central Dwarf Galaxy Population

文献类型：期刊论文

作者Eigenthaler, Paul1,2,3; Puzia, Thomas H.1; Taylor, Matthew A.4; Ordenes-Briceno, Yasna1,5; Munoz, Roberto P.1; Ribbeck, Karen X.1; Alamo-Martinez, Karla A.1; Zhang, Hongxin1; Angel, Simon1; Capaccioli, Massimo6
刊名ASTROPHYSICAL JOURNAL
出版日期2018-03-10
卷号855期号:2页码:19
关键词galaxies: clusters: individual (Fornax) galaxies: dwarf galaxies: elliptical and lenticular cD galaxies: fundamental parameters galaxies: stellar content
ISSN号0004-637X
DOI10.3847/1538-4357/aaab60
英文摘要We present a photometric study of the dwarf galaxy population in the core region (less than or similar to r(vir)/4) of the Fornax galaxy cluster based on deep u' g' i' photometry from the Next Generation Fornax Cluster Survey.. All imaging data were obtained with the Dark Energy Camera mounted on the 4 m Blanco telescope at the Cerro Tololo Interamerican Observatory. We identify 258 dwarf galaxy candidates with luminosities -17 less than or similar to. M-g' less than or similar to - 8 mag, corresponding to typical stellar masses of 9.5 greater than or similar to log M-*/M-circle dot greater than or similar to 5.5, reaching similar to 3 mag deeper in point- source luminosity and similar to 4 mag deeper in surface brightness sensitivity compared to the classic Fornax Cluster Catalog. Morphological analysis shows that the dwarf galaxy surface-brightness profiles are well represented by single- component Sersic models with average Sersic indices of < n > u' , g', i' =( 0.78-0.83) +/- 0.02 and average effective radii of < r(e)> u', g', i' = ( 0.67-0.70) +/- 0.02 kpc. Color-magnitude relations indicate a flattening of the galaxy red sequence at faint galaxy luminosities, similar to the one recently discovered in the Virgo cluster. A comparison with population synthesis models and the galaxy mass-metallicity relation reveals that the average faint dwarf galaxy is likely older than similar to 5 Gyr. We study galaxy scaling relations between stellar mass, effective radius, and stellar mass surface density over a stellar mass range covering six orders of magnitude. We find that over the sampled stellar mass range several distinct mechanisms of galaxy mass assembly can be identified: ( 1) dwarf galaxies assemble mass inside the half-mass radius up to log M-* approximate to 8.0, ( 2) isometric mass assembly occurs in the range 8.0 less than or similar to logM(*)/M-circle dot less than or similar to 10.5, and ( 3) massive galaxies assemble stellar mass predominantly in their halos at log M-* approximate to 10.5 and above.
WOS关键词MASS-METALLICITY RELATION ; ULTRA-DIFFUSE GALAXIES ; DIGITAL SKY SURVEY ; COLOR-MAGNITUDE RELATION ; STAR-FORMATION HISTORIES ; ACTIVE GALACTIC NUCLEI ; VIRGO-CLUSTER SURVEY ; MILKY-WAY SATELLITE ; SIMILAR-TO 1 ; ELLIPTIC GALAXIES
资助项目FONDECYT[3130750] ; FONDECYT[1161817] ; FONDECYT[1120195] ; BASAL Center for Astrophysics and Associated Technologies[PFB-06] ; Chinese Academy of Sciences (CAS) through CAS-CONICYT Postdoctoral Fellowship[CAS150023] ; Vicerrectoria de Investigacion ; Institute of Astrophysics Graduate School Fund at Pontificia Universidad Catolica de Chile ; European Southern Observatory Graduate Student Fellowship program ; CONICYT-Chile[CONICYT-PCHA/Doctorado Nacional/2014-21140651] ; ECOS-Sud/CONICYT project[C15U02] ; DOE (USA) ; NSF (USA) ; MISE (Spain) ; STFC (UK) ; HEFCE (UK) ; NCSA (UIUC) ; KICP (U. Chicago) ; CCAPP (Ohio State) ; MIFPA (Texas AM) ; CNPQ (Brazil) ; FAPERJ (Brazil) ; FINEP (Brazil) ; MINECO (Spain) ; DFG (Germany) ; Argonne Lab ; UC Santa Cruz ; University of Cambridge ; CIEMAT-Madrid ; University of Chicago ; University College London ; DES-Brazil Consortium ; University of Edinburgh ; ETH Zurich ; Fermilab ; University of Illinois ; ICE (IEEC-CSIC) ; IFAE Barcelona ; Lawrence Berkeley Lab ; LMU Munchen and the associated Excellence Cluster Universe ; University of Michigan ; NOAO ; University of Nottingham ; Ohio State University ; University of Pennsylvania ; University of Portsmouth ; SLAC National Lab ; Stanford University ; University of Sussex ; Texas AM University
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000427697100011
出版者IOP PUBLISHING LTD
资助机构FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Chinese Academy of Sciences (CAS) through CAS-CONICYT Postdoctoral Fellowship ; Vicerrectoria de Investigacion ; Institute of Astrophysics Graduate School Fund at Pontificia Universidad Catolica de Chile ; European Southern Observatory Graduate Student Fellowship program ; CONICYT-Chile ; ECOS-Sud/CONICYT project ; DOE (USA) ; NSF (USA) ; MISE (Spain) ; STFC (UK) ; HEFCE (UK) ; NCSA (UIUC) ; KICP (U. Chicago) ; CCAPP (Ohio State) ; MIFPA (Texas AM) ; CNPQ (Brazil) ; FAPERJ (Brazil) ; FINEP (Brazil) ; MINECO (Spain) ; DFG (Germany) ; Argonne Lab ; UC Santa Cruz ; University of Cambridge ; CIEMAT-Madrid ; University of Chicago ; University College London ; DES-Brazil Consortium ; University of Edinburgh ; ETH Zurich ; Fermilab ; University of Illinois ; ICE (IEEC-CSIC) ; IFAE Barcelona ; Lawrence Berkeley Lab ; LMU Munchen and the associated Excellence Cluster Universe ; University of Michigan ; NOAO ; University of Nottingham ; Ohio State University ; University of Pennsylvania ; University of Portsmouth ; SLAC National Lab ; Stanford University ; University of Sussex ; Texas AM University ; FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Chinese Academy of Sciences (CAS) through CAS-CONICYT Postdoctoral Fellowship ; Vicerrectoria de Investigacion ; Institute of Astrophysics Graduate School Fund at Pontificia Universidad Catolica de Chile ; European Southern Observatory Graduate Student Fellowship program ; CONICYT-Chile ; ECOS-Sud/CONICYT project ; DOE (USA) ; NSF (USA) ; MISE (Spain) ; STFC (UK) ; HEFCE (UK) ; NCSA (UIUC) ; KICP (U. Chicago) ; CCAPP (Ohio State) ; MIFPA (Texas AM) ; CNPQ (Brazil) ; FAPERJ (Brazil) ; FINEP (Brazil) ; MINECO (Spain) ; DFG (Germany) ; Argonne Lab ; UC Santa Cruz ; University of Cambridge ; CIEMAT-Madrid ; University of Chicago ; University College London ; DES-Brazil Consortium ; University of Edinburgh ; ETH Zurich ; Fermilab ; University of Illinois ; ICE (IEEC-CSIC) ; IFAE Barcelona ; Lawrence Berkeley Lab ; LMU Munchen and the associated Excellence Cluster Universe ; University of Michigan ; NOAO ; University of Nottingham ; Ohio State University ; University of Pennsylvania ; University of Portsmouth ; SLAC National Lab ; Stanford University ; University of Sussex ; Texas AM University ; FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Chinese Academy of Sciences (CAS) through CAS-CONICYT Postdoctoral Fellowship ; Vicerrectoria de Investigacion ; Institute of Astrophysics Graduate School Fund at Pontificia Universidad Catolica de Chile ; European Southern Observatory Graduate Student Fellowship program ; CONICYT-Chile ; ECOS-Sud/CONICYT project ; DOE (USA) ; NSF (USA) ; MISE (Spain) ; STFC (UK) ; HEFCE (UK) ; NCSA (UIUC) ; KICP (U. Chicago) ; CCAPP (Ohio State) ; MIFPA (Texas AM) ; CNPQ (Brazil) ; FAPERJ (Brazil) ; FINEP (Brazil) ; MINECO (Spain) ; DFG (Germany) ; Argonne Lab ; UC Santa Cruz ; University of Cambridge ; CIEMAT-Madrid ; University of Chicago ; University College London ; DES-Brazil Consortium ; University of Edinburgh ; ETH Zurich ; Fermilab ; University of Illinois ; ICE (IEEC-CSIC) ; IFAE Barcelona ; Lawrence Berkeley Lab ; LMU Munchen and the associated Excellence Cluster Universe ; University of Michigan ; NOAO ; University of Nottingham ; Ohio State University ; University of Pennsylvania ; University of Portsmouth ; SLAC National Lab ; Stanford University ; University of Sussex ; Texas AM University ; FONDECYT ; BASAL Center for Astrophysics and Associated Technologies ; Chinese Academy of Sciences (CAS) through CAS-CONICYT Postdoctoral Fellowship ; Vicerrectoria de Investigacion ; Institute of Astrophysics Graduate School Fund at Pontificia Universidad Catolica de Chile ; European Southern Observatory Graduate Student Fellowship program ; CONICYT-Chile ; ECOS-Sud/CONICYT project ; DOE (USA) ; NSF (USA) ; MISE (Spain) ; STFC (UK) ; HEFCE (UK) ; NCSA (UIUC) ; KICP (U. Chicago) ; CCAPP (Ohio State) ; MIFPA (Texas AM) ; CNPQ (Brazil) ; FAPERJ (Brazil) ; FINEP (Brazil) ; MINECO (Spain) ; DFG (Germany) ; Argonne Lab ; UC Santa Cruz ; University of Cambridge ; CIEMAT-Madrid ; University of Chicago ; University College London ; DES-Brazil Consortium ; University of Edinburgh ; ETH Zurich ; Fermilab ; University of Illinois ; ICE (IEEC-CSIC) ; IFAE Barcelona ; Lawrence Berkeley Lab ; LMU Munchen and the associated Excellence Cluster Universe ; University of Michigan ; NOAO ; University of Nottingham ; Ohio State University ; University of Pennsylvania ; University of Portsmouth ; SLAC National Lab ; Stanford University ; University of Sussex ; Texas AM University
源URL[http://ir.bao.ac.cn/handle/114a11/35650]  
专题中国科学院国家天文台
通讯作者Eigenthaler, Paul
作者单位1.Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile
2.Chinese Acad Sci, South Amer Ctr Astron, Camino Observ 1515, Santiago, Chile
3.Chinese Acad Sci, China Chile Joint Ctr Astron, Camino Observ 1515, Santiago, Chile
4.Northern Operat Ctr, Gemini Observ, 670 North Aohoku Pl, Hilo, HI 96720 USA
5.Heidelberg Univ, Zentrum Astron, Astron Rechen Inst, Monchhofstr 12-14, D-69120 Heidelberg, Germany
6.INAF Osservatorio Astron Capodimonte, Salita Moiariello 16, I-80131 Naples, Italy
7.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
8.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
9.Univ Strasbourg, CNRS, Observ Astron Strasbourg, UMR 7550, 11 Rue Univ, F-67000 Strasbourg, France
10.European Southern Observ, Alonso Cordova 3107, Santiago, Chile
推荐引用方式
GB/T 7714		 Eigenthaler, Paul,Puzia, Thomas H.,Taylor, Matthew A.,et al. The Next Generation Fornax Survey (NGFS). II. The Central Dwarf Galaxy Population[J]. ASTROPHYSICAL JOURNAL,2018,855(2):19.
APA Eigenthaler, Paul.,Puzia, Thomas H..,Taylor, Matthew A..,Ordenes-Briceno, Yasna.,Munoz, Roberto P..,...&Spengler, Chelsea.(2018).The Next Generation Fornax Survey (NGFS). II. The Central Dwarf Galaxy Population.ASTROPHYSICAL JOURNAL,855(2),19.
MLA Eigenthaler, Paul,et al."The Next Generation Fornax Survey (NGFS). II. The Central Dwarf Galaxy Population".ASTROPHYSICAL JOURNAL 855.2(2018):19.

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