POLAR-I: linking the 21-cm signal from the epoch of reionization to galaxy formation

被引：13

作者：

Ma, Qing-Bo ^{[1
,2
]}

Ghara, Raghunath ^{[3
]}

Ciardi, Benedetta ^{[4
]}

Iliev, Ilian T. ^{[5
]}

Koopmans, Leon V. E. ^{[6
]}

Mellema, Garrelt ^{[7
]}

Mondal, Rajesh ^{[8
]}

Zaroubi, Saleem

机构：

[1] Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China

[2] Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China

[3] Open Univ Israel, ARCO Astrophys Res Ctr, Dept Nat Sci, 1 Univ Rd,PO Box 808, Raanana IL-43537, Israel

[4] Max Planck Inst Astrophys, Karl Schwarzschild Str 1, Garching, Germany

[5] Univ Sussex, Astron Ctr, Dept Phys & Astron, Brighton BN19QH, England

[6] Univ Groningen, Kapteyn Astron Inst, PO BOX 800, NL-9700AV Groningen, Netherlands

[7] Stockholm Univ, Oskar Klein Ctr, Dept Astron, SE-10691 AlbaNova, Sweden

[8] Tel Aviv Univ, Sch Phys & Astron, Dept Astrophys, IL-69978 Tel Aviv, Israel

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2023年 / 522卷 / 03期

基金：

欧洲研究理事会; 瑞典研究理事会; 以色列科学基金会; 中国国家自然科学基金;

关键词：

methods: numerical; galaxies: formation; dark ages; reionization; first stars; 21 CM SIGNAL; APPROXIMATE-TO; 9.1; STAR-FORMATION; LUMINOSITY FUNCTIONS; UPPER LIMITS; COSMIC DAWN; HYDROGEN REIONIZATION; INTERGALACTIC MEDIUM; POWER-SPECTRUM; EVOLUTION;

D O I：

10.1093/mnras/stad1203

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To self-consistently model galactic properties, reionization of the intergalactic medium, and the associated 21-cm signal, we have developed the algorithm polar by integrating the one-dimensional radiative transfer code grizzly with the semi-analytical galaxy formation code L-Galaxies 2020. Our proof-of-concept results are consistent with observations of the star formation rate history, UV luminosity function, and the CMB Thomson scattering optical depth. We then investigate how different galaxy formation models affect UV luminosity functions and 21-cm power spectra, and find that while the former are most sensitive to the parameters describing the merger of haloes, the latter have a stronger dependence on the supernovae feedback parameters, and both are affected by the escape fraction model.

引用

页码：3284 / 3297

页数：14

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