Dark-ages reionization and galaxy formation simulation - XXI. Constraining the evolution of the ionizing escape fraction

被引：7

作者：

Mutch, Simon J. ^{[1
,2
,3
]}

Greig, Bradley ^{[1
,2
]}

Qin, Yuxiang ^{[1
,2
]}

Poole, Gregory B. ^{[1
,4
]}

Wyithe, J. Stuart B. ^{[1
,2
]}

机构：

[1] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[2] ARC Ctr Excellence All Sky Astrophys 3 Dimens AST, Stromlo, ACT, Australia

[3] Univ Melbourne, Melbourne Data Analyt Platform, Parkville, Vic 3010, Australia

[4] Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 527卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

galaxies: high-redshift; intergalactic medium; dark ages; reionization; first stars; diffuse radiation; early Universe; cosmology: theory; UV LUMINOSITY FUNCTIONS; FORMATION RATE DENSITY; STAR-FORMING GALAXIES; LYMAN-CONTINUUM; COSMIC DAWN; INTERGALACTIC MEDIUM; NEUTRAL FRACTION; GALACTIC WINDS; REDSHIFT; EPOCH;

D O I：

10.1093/mnras/stad3746

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The fraction of ionizing photons that escape their host galaxies to ionize hydrogen in the intergalactic medium (IGM) is a critical parameter in analyses of the reionization era. In this paper, we use the MERAXES semi-analytic galaxy formation model to infer the mean ionizing photon escape fraction and its dependence on galaxy properties through joint modelling of the observed high redshift galaxy population and existing constraints on the reionization history. Using a Bayesian framework, and under the assumption that escape fraction is primarily related to halo mass, we find that the joint constraints of the ultraviolet luminosity function, cosmic microwave background optical depth, and the Ly aforest require an escape fraction of (18 +/- 5) per cent for galaxies within haloes of M less than or similar to 10(9) M-circle dot and (5 +/- 2) per cent for more massive haloes. In terms of galaxy properties, this transition in escape fraction occurs at stellar masses of M 10(7) M, nearly independent of redshift. As a function of redshift, reionization is dominated by the smaller M-star similar to 10(7) M-circle dot galaxies with high escape fractions at z greater than or similar to 6 and by the larger M-star >= 10(7) M-circle dot galaxies with lower escape fractions at z similar to 6. Galaxies with star formation rates of 10-2.5 M similar to yr-1 to 10-1.5 M-star >= yr(-1) provide the dominant source of ionizing photons throughout reionization. Our results are consistent with recent direct measurements of a similar to 5 per cent escape fraction from massive galaxies at the end of reionization and support the picture of low mass galaxies being the dominant sources of ionizing photons during reionization.

引用

页码：7924 / 7939

页数：16

共 90 条

[1] Planck intermediate results XLVII. Planck constraints on reionization history [J].

Adam, R. ;

Aghanim, N. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Battye, R. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Comis, B. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Davis, R. J. ;

de Bernardis, P. ;

de Rosa, A. ;

de Zotti, G. ;

Delabrouille, J. ;

Di Valentino, E. ;

Dickinson, C. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Elsner, F. ;

Ensslin, T. A. .

ASTRONOMY & ASTROPHYSICS, 2016, 596

[2] Planck 2015 results XVII. Constraints on primordial non-Gaussianity [J].

Ade, P. A. R. ;

Aghanim, N. ;

Arnaud, M. ;

Arrojam, F. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chiang, H. C. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

de Bernardis, P. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[3] Planck 2018 results: V. CMB power spectra and likelihoods [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Casaponsa, B. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Rosa, A. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[4] Dark-ages reionization and galaxy formation simulation - II. Spin and concentration parameters for dark matter haloes during the epoch of reionization [J].

Angel, Paul W. ;

Poole, Gregory B. ;

Ludlow, Aaron D. ;

Duffy, Alan R. ;

Geil, Paul M. ;

Mutch, Simon J. ;

Mesinger, Andrei ;

Wyithe, J. Stuart B. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 459 (02) :2106-2117

[5]

Atek H., 2022, MNRAS

[6] An 800-million-solar-mass black hole in a significantly neutral Universe at a redshift of 7.5 [J].

Banados, Eduardo ;

Venemans, Bram P. ;

Mazzucchelli, Chiara ;

Farina, Emanuele P. ;

Walter, Fabian ;

Wang, Feige ;

Decarli, Roberto ;

Stern, Daniel ;

Fan, Xiaohui ;

Davies, Frederick B. ;

Hennawi, Joseph F. ;

Simcoe, Robert A. ;

Turner, Monica L. ;

Rix, Hans-Walter ;

Yang, Jinyi ;

Kelson, Daniel D. ;

Rudie, Gwen C. ;

Winters, Jan Martin .

NATURE, 2018, 553 (7689) :473-+

[7] A cautionary tale of Ly C escape fraction estimates from high-redshift galaxies [J].

Bassett, R. ;

Ryan-Weber, E., V ;

Cooke, J. ;

Mestric, U. ;

Prichard, L. J. ;

Rafelski, M. ;

Iwata, I. ;

Sawicki, M. ;

Gwyn, S. ;

Arnouts, S. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 511 (04) :5730-5741

[8] New measurements of the ionizing ultraviolet background over 2 < z < 5 and implications for hydrogen reionization [J].

Becker, George D. ;

Bolton, James S. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 436 (02) :1023-1039

[9] The VANDELS survey: a measurement of the average Lyman-continuum escape fraction of star-forming galaxies at z=3.5 [J].

Begley, R. ;

Cullen, F. ;

McLure, R. J. ;

Dunlop, J. S. ;

Hall, A. ;

Carnall, A. C. ;

Hamadouche, M. L. ;

McLeod, D. J. ;

Amorin, R. ;

Calabro, A. ;

Fontana, A. ;

Fynbo, J. P. U. ;

Guaita, L. ;

Hathi, N. P. ;

Hibon, P. ;

Ji, Z. ;

Llerena, M. ;

Pentericci, L. ;

Saldana-Lopez, A. ;

Schaerer, D. ;

Talia, M. ;

Vanzella, E. ;

Zamorani, G. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 513 (03) :3510-3525

[10] Cython: The Best of Both Worlds [J].

Behnel, Stefan ;

Bradshaw, Robert ;

Citro, Craig ;

Dalcin, Lisandro ;

Seljebotn, Dag Sverre ;

Smith, Kurt .

COMPUTING IN SCIENCE & ENGINEERING, 2011, 13 (02) :31-39

← 1 2 3 4 5 6 7 8 9 →