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On the Faint End of the Galaxy Luminosity Function in the Epoch of Reionization: Updated Constraints from the HST Frontier Fields

文献类型：期刊论文

作者Yue, B.2; Castellano, M.3; Ferrara, A.4,5; Fontana, A.3; Merlin, E.3; Amorin, R.6,7; Grazian, A.3; Marmol-Queralto, E.8; Michalowski, M. J.1; Mortlock, A.8
刊名ASTROPHYSICAL JOURNAL
出版日期2018-12-01
卷号868期号:2页码:13
关键词dark ages, reionization, first stars galaxies: high-redshift gravitational lensing: strong
ISSN号0004-637X
DOI10.3847/1538-4357/aae77f
英文摘要Ultra-faint galaxies are hosted by small dark matter halos with shallow gravitational potential wells, hence their star formation activity is more sensitive to feedback effects. The shape of the faint end of the high-z galaxy luminosity function (LF) contains important information on star formation and its interaction with the reionization process during the Epoch of Reionization. High-z galaxies with M-UV greater than or similar to -17 have only recently become accessible thanks to the Frontier Fields (FFs) survey combining deep HST imaging and the gravitational lensing effect. In this paper we investigate the faint end of the LF at redshift >5 using the data of FFs clusters Abell 2744 (A2744), MACSJ0416.1-2403 (M0416), MACSJ0717.5+3745 (M0717), and MACSJ1149.5+2223 (M1149). We analyze both an empirical and a physically motivated LF model to obtain constraints on a possible turnover of LF at faint magnitudes. In the empirical model the LF drops fast when the absolute UV magnitude M-UV is much larger than a turnover absolute UV magnitude M-UV(T). We obtain M-UV(T) greater than or similar to -14.6 (15.2) at the 1 (2)sigma confidence level (C.L.) for z similar to 6. In the physically motivated analytical model, star formation in halos with circular velocity below v(c)* is fully quenched if these halos are located in ionized regions. Using updated lensing models and new additional FFs data, we re-analyze previous constraints on v(c)* and f(esc) presented by Castellano et al. using a smaller data set. We obtain new constraints on v(c)* less than or similar to 59 km s(-1) and f(esc) less than or similar to 56% (both at 2 sigma C.L.) and conclude that there is no turnover detected so far from the analyzed FFs data. Forthcoming JWST observations will be key to tightening these constraints further.
WOS关键词STRONG-LENSING ANALYSIS ; MASS RECONSTRUCTION ; NONPARAMETRIC INVERSION ; STAR-FORMATION ; WEAK ; CLUSTERS ; MODELS ; LIGHT
资助项目HST Frontier Fields program ; NASA[NAS 5-26555] ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC[11653003] ; NSFC-CAS[U1738125] ; NSFC-ISF[11761141012] ; ERC[695671 QUENCH] ; National Science Centre, Poland through the POLONEZ grant[2015/19/P/ST9/04010] ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant[665778]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000451746000009
出版者IOP PUBLISHING LTD
资助机构HST Frontier Fields program ; HST Frontier Fields program ; NASA ; NASA ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; National Science Centre, Poland through the POLONEZ grant ; National Science Centre, Poland through the POLONEZ grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; HST Frontier Fields program ; HST Frontier Fields program ; NASA ; NASA ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; National Science Centre, Poland through the POLONEZ grant ; National Science Centre, Poland through the POLONEZ grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; HST Frontier Fields program ; HST Frontier Fields program ; NASA ; NASA ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; National Science Centre, Poland through the POLONEZ grant ; National Science Centre, Poland through the POLONEZ grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; HST Frontier Fields program ; HST Frontier Fields program ; NASA ; NASA ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; National Science Centre, Poland through the POLONEZ grant ; National Science Centre, Poland through the POLONEZ grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant
源URL[http://ir.bao.ac.cn/handle/114a11/23663]  
专题中国科学院国家天文台
通讯作者Yue, B.
作者单位1.Adam Mickiewicz Univ, Astron Observ Inst, Fac Phys, Ul Sloneczna 36, PL-60286 Poznan, Poland
2.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
3.INAF Osservatorio Astron Roma, Via Frascati 33, I-00078 Monte Porzio Catone, RM, Italy
4.Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy
5.Univ Tokyo, Kavli IPMU WPI, Todai Inst Adv Study, Tokyo, Japan
6.Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England
7.Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England
8.Univ Edinburgh, SUPA, Inst Astron, Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland
推荐引用方式
GB/T 7714		 Yue, B.,Castellano, M.,Ferrara, A.,et al. On the Faint End of the Galaxy Luminosity Function in the Epoch of Reionization: Updated Constraints from the HST Frontier Fields[J]. ASTROPHYSICAL JOURNAL,2018,868(2):13.
APA Yue, B..,Castellano, M..,Ferrara, A..,Fontana, A..,Merlin, E..,...&Di Criscienzo, M..(2018).On the Faint End of the Galaxy Luminosity Function in the Epoch of Reionization: Updated Constraints from the HST Frontier Fields.ASTROPHYSICAL JOURNAL,868(2),13.
MLA Yue, B.,et al."On the Faint End of the Galaxy Luminosity Function in the Epoch of Reionization: Updated Constraints from the HST Frontier Fields".ASTROPHYSICAL JOURNAL 868.2(2018):13.

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