A GLIMPSE into the very faint-end of the H$β$+[OIII]$λλ$4960,5008 luminosity function at z=7-9 behind Abell S1063
Observatoire de Genève, Université de Genève(日内瓦天文台,日内瓦大学);Institut d’Astrophysique de Paris, CNRS, Sorbonne Université(巴黎天体物理研究所,法国国家科学研究中心,索邦大学);Department of Physics, Ben-Gurion University of the Negev(内盖夫本-古里安大学物理系);Department of Astronomy, The University of Texas at Austin(德克萨斯大学奥斯汀分校天文学系);CNRS, IRAP(法国国家科学研究中心,天体物理研究所);Department of Astronomy, Oskar Klein Centre, Stockholm University(斯德哥尔摩大学奥斯卡·克莱因中心天文学系)
Damien Korber, Iryna Chemerynska, Lukas J. Furtak, Hakim Atek, Ryan Endsley, Daniel Schaerer, John Chisholm, Vasily Kokorev, Alberto Saldana-Lopez, Angela Adamo… 展开作者
Damien Korber, Iryna Chemerynska, Lukas J. Furtak, Hakim Atek, Ryan Endsley, Daniel Schaerer, John Chisholm, Vasily Kokorev, Alberto Saldana-Lopez, Angela Adamo, Julian B. Muñoz, Pascal A. Oesch, Romain Meyer, Rui Marques-Chaves, Seiji Fujimoto
We use the ultra-deep GLIMPSE JWST/NIRCam survey to constrain the faint-end of the H$β$+[OIII]$λλ$4960,5008 luminosity function (LF) down to $10^{39}$ erg/s at z=7-9 behind the lensed Hubble Frontier Field Abell S1063. We perform SED fitting on a Lyman-Break Galaxy sample, measuring combined H$β$+[OIII] fluxes to construct the emission-line LF. The resulting LF ($α$=-1.55 to -1.78) is flatter than the UV LF ($α<-2$), indicating a lower number density of low H$β$+[OIII] emitters at fixed MUV. We explore three explanations: (i) bursty star formation histories reducing the H$β$+[OIII]-to-UV ratio, (ii) metallicity effects on [OIII]/H$β$, or (iii) a faint-end turnover in the UV LF. Assuming an evolving [OIII]/H$β$ ratio, we derive a flatter [OIII]$λ$5008 LF ($α$=-1.45 to -1.66) and a steeper H$β$ LF ($α$=-1.68 to -1.95). The combination of decreasing metallicity and bursty star formation can reconcile the UV and H$β$+[OIII] LF differences. Converting the LF to the ionising photon production rate, we find that galaxies with H$α$ flux $>10^{39}$ erg/s (SFR(H$α$)$>5\times10^{-3} M_\odot$/yr) contribute 31%-90% and 46%-156% of the ionising photon budget at 7<z<8 and 8<z<9, respectively (for $f_{esc}=0.14$). The LF shape suggests faint galaxies contribute minimally to the ionising photon production rate. Our cosmic star formation rate density (CSFRD) estimates align with previous work, but GLIMPSE's sensitivity to low SFRs confirms that very faint galaxies are minor contributors to both the ionising photon production rate and the CSFRD. Our results suggest that GLIMPSE has detected the bulk of the total H$β$+[OIII] emission from star-forming galaxies, with fainter sources playing a limited role in cosmic reionisation.
GLIMPSE-DDT spectroscopic properties of faint-end galaxies at $z\sim6$: Towards first metal enrichment, dust production, and ionizing photon production
The University of Texas at Austin(德克萨斯大学奥斯汀分校);MIT Kavli Institute for Astrophysics and Space Research(麻省理工学院卡弗里天体物理学与空间研究研究所);Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen(哥本哈根大学尼尔斯玻尔研究所黎明宇宙中心);Tufts University(塔夫茨大学);Univ Lyon, Univ Lyon1, Ens de Lyon(里昂大学,里昂第一大学,里昂高等师范学校);University of Geneva(日内瓦大学);Institute of Astronomy, University of Cambridge(剑桥大学天文学研究所);Rutgers University(罗格斯大学);Space Telescope Science Institute(太空望远镜科学研究所)
A Glimpse of the Low-Mass End of the Direct Mass-Metallicity Relation at $z\sim6-8$
The University of Texas at Austin(德克萨斯大学奥斯汀分校);Institut d’Astrophysique de Paris, CNRS, Sorbonne Université(巴黎天体物理研究所,法国国家科学研究中心,索邦大学);MIT Kavli Institute for Astrophysics and Space Research(麻省理工学院卡弗里天体物理与空间研究所);University of Toronto(多伦多大学)
GLIMPSE-D: An Exotic Balmer-Jump Object at z=6.20? Revisiting Photometric Selection and the Cosmic Abundance of Pop III Galaxies
University of Toronto(多伦多大学);Waseda University(早稻田大学);MIT Kavli Institute for Astrophysics and Space Research(麻省理工学院卡弗里天体物理学与空间研究所);The University of Texas at Austin(德克萨斯大学奥斯汀分校);CNRS, Sorbonne Université(法国国家科学研究中心,索邦大学);Niels Bohr Institute, University of Copenhagen(哥本哈根大学尼尔斯·玻尔研究所);Observatoire de Genève, Université de Genève(日内瓦天文台,日内瓦大学)
GLIMPSE: An ultra-faint $\simeq$ 10$^{5}$ $M_{\odot}$ Pop III Galaxy Candidate and First Constraints on the Pop III UV Luminosity Function at $z\simeq6-7$
A first GLIMPSE into star clusters populations across cosmic time
Univ Lyon, Univ Lyon1, Ens de Lyon, CNRS, CRAL UMR5574(里昂大学);Department of Astronomy, The University of Texas at Austin(德克萨斯大学奥斯汀分校天文学系);Cosmic Frontier Center, The University of Texas at Austin(德克萨斯大学奥斯汀分校宇宙前沿中心);Centre for Extragalactic Astronomy, Department of Physics, Durham University(杜伦大学物理系河外天文研究中心);Institute for Computational Cosmology, Department of Physics, Durham University(杜伦大学物理系计算宇宙学研究所);Department of Astronomy, University of Geneva(日内瓦大学天文学系);Institut d’Astrophysique de Paris, CNRS, Sorbonne Université(巴黎天体物理研究所)
A group of merging galaxies falling onto Abell 2142
Observatoire de Paris(巴黎天文台);Sorbonne Université(索邦大学);Université PSL(巴黎文理研究大学);CNRS(法国国家科学研究中心);Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg(海德堡大学天体物理计算研究所);Sternberg Astronomical Institute, Moscow M.V. Lomonosov State University(莫斯科国立罗蒙诺索夫大学斯佩尔斯基天体物理研究所);Collège de France(法兰西学院)
Infrared Galaxies in the Field of the Massive Cluster Abell S1063: Discovery of a Luminous Kiloparsec-Sized HII Region in a Gravitationally Lensed IR-Luminous Galaxy at $z=0.6$
A GLIMPSE into the UV Continuum Slopes of the Faintest Galaxies in the Epoch of Reionization
The University of Texas at Austin(德克萨斯大学奥斯汀分校);Cosmic Frontier Center, The University of Texas at Austin(德克萨斯大学奥斯汀分校宇宙前沿中心);Institut d’Astrophysique de Paris, CNRS, Sorbonne Université(巴黎天体物理研究所,法国国家科学研究中心,索邦大学);Tufts University(塔夫茨大学);David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto(多伦多大学戴维·A·邓拉普天文与天体物理系)
A Fleeting GLIMPSE of N/O Enrichment at Cosmic Dawn: Evidence for Wolf Rayet N Stars in a z = 6.1 Galaxy
The University of Texas at Austin(德克萨斯大学奥斯汀分校);MIT Kavli Institute for Astrophysics and Space Research(麻省理工学院卡弗里天体物理与空间研究所);Institut d’Astrophysique de Paris, CNRS, Sorbonne Université(巴黎天体物理研究所);University of Toronto(多伦多大学)
The first GLIMPSE of the faint galaxy population at Cosmic Dawn with JWST: The evolution of the ultraviolet luminosity function across z~9-15
Institut d’Astrophysique de Paris, CNRS, Sorbonne Université(巴黎天体物理研究所,法国国家科学研究中心,索邦大学);Ben-Gurion University of the Negev(内盖夫本-古里安大学);The University of Texas at Austin(德克萨斯大学奥斯汀分校);Cosmic Frontier Center, The University of Texas at Austin(德克萨斯大学奥斯汀分校宇宙前沿中心);Universite Claude Bernard Lyon 1, CRAL UMR5574, ENS de Lyon, CNRS(里昂第一大学克劳德·贝尔纳大学,CRAL UMR5574,里昂高等师范学校,法国国家科学研究中心);Stockholm University(斯德哥尔摩大学)
Tilting at the Turnover: Modeling the Faint-End of the UV Luminosity Function Behind Abell s1063 with JWST
University of Manchester(曼彻斯特大学);Jodrell Bank Centre for Astrophysics, University of Manchester(曼彻斯特大学乔德雷尔银行天体物理中心);Instituto de Física de Cantabria (CSIC-UC)(坎塔布里亚物理研究所(西班牙高等科学研究委员会-坎塔布里亚大学))
INAF – OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna(意大利国家天体物理研究所-博洛尼亚天文与空间科学观测站);Max-Planck-Institut für Astrophysik(马克斯·普朗克天体物理学研究所);INAF – Osservatorio Astronomico di Roma(意大利国家天体物理研究所-罗马天文台);Department of Physics & Astronomy, University College London(伦敦大学学院物理与天文系);Department of Astronomy, Oskar Klein Centre, Stockholm University(斯德哥尔摩大学奥斯卡·克莱因中心天文学系)
Chasing Cosmic Reionization: An Extremely Faint Highly Magnified Source at $z=5.66$ with high $ξ_{\rm ion}$
University of California, Los Angeles(加州大学洛杉矶分校);INAF - OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna(意大利国家天体物理研究所-博洛尼亚天文与空间科学观测站);Università degli Studi di Ferrara(费拉拉大学);Università degli Studi di Milano(米兰大学)
Hedorah, the first yellow supergiant Kaiju star candidate at $z=3.7$ revealed by JWST behind AS1063
Instituto de Física de Cantabria (CSIC-UC)(坎塔布里亚物理研究所);School of Physics and Astronomy, University of Minnesota(明尼苏达大学物理与天文学院);STAR Institute(STAR研究所);Université Claude Bernard Lyon 1(里昂第一大学);Department of Astronomy, University of Michigan(密歇根大学天文学系);Department of Physics and Astronomy, University of Pennsylvania(宾夕法尼亚大学物理与天文学系)