edge: the emergence of dwarf galaxy scaling relations from cosmological radiation-hydrodynamics simulations

被引：1

作者：

Rey, Martin P. ^{[1
,2
]}

Taylor, Ethan ^{[3
]}

Gray, Emily, I

Kim, Stacy Y. ^{[4
]}

Andersson, Eric P. ^{[5
]}

Pontzen, Andrew ^{[6
]}

Agertz, Oscar ^{[7
]}

Read, Justin, I ^{[3
]}

Cadiou, Corentin ^{[7
,8
]}

Yates, Robert M. ^{[9
]}

Orkney, Matthew D. A. ^{[10
,11
]}

Scholte, Dirk ^{[12
]}

Saintonge, Amelie ^{[13
,14
]}

Breneman, Joseph ^{[15
]}

McQuinn, Kristen B. W. ^{[15
,16
]}

Muni, Claudia ^{[13
]}

Das, Payel ^{[3
]}

机构：

[1] Univ Bath, Dept Phys, Bath BA2 7AY, England

[2] Univ Oxford, Subdept Astrophys, DWB, Keble Rd, Oxford OX1 3RH, England

[3] Univ Surrey, Dept Phys, Guildford GU2 7XH, England

[4] Carnegie Observ, Carnegie Theoret Astrophys Ctr, 813 Santa Barbara St, Pasadena, CA 91106 USA

[5] Amer Museum Nat Hist, Dept Astrophys, 200 Cent Pk West, New York, NY 10024 USA

[6] Univ Durham, Inst Computat Cosmol, Dept Phys, South Rd, Durham DH1 3LE, England

[7] Lund Univ, Dept Phys, Div Astrophys, Lund Observ, Box 43, SE-22100 Lund, Sweden

[8] Sorbonne Univ, Inst Astrophys Paris, CNRS, UMR 7095, 98 Bis Bd Arago, F-75014 Paris, France

[9] Univ Hertfordshire, Ctr Astrophys Res, Hatfield AL10 9AB, England

[10] Univ Barcelona IEEC UB, Inst Ciencies Cosmos ICCUB, Marti i Franques 1, E-08028 Barcelona, Spain

[11] Inst Estudis Espacials Catalunya IEEC, E-08034 Barcelona, Spain

[12] Univ Edinburgh, Inst Astron, Royal Observ, Edinburgh EH9 3HJ, Scotland

[13] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[14] Max Planck Inst Radioastron MPIfR, Hugel 69, D-53121 Bonn, Germany

[15] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[16] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2025年 / 541卷 / 02期

基金：

瑞典研究理事会; 英国科学技术设施理事会;

关键词：

methods: numerical; galaxies: dwarf; galaxies: evolution; galaxies: ISM; galaxies: structure; MASS-METALLICITY RELATION; ADAPTIVE MESH REFINEMENT; STAR-FORMATION HISTORY; DARK-MATTER HALOES; M-CIRCLE-DOT; MILKY-WAY; LAMBDA-CDM; STELLAR FEEDBACK; LOCAL GROUP; CHEMICAL EVOLUTION;

D O I：

10.1093/mnras/staf1058

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new suite of EDGE ('Engineering Dwarfs at Galaxy formation's Edge') cosmological zoom simulations. The suite includes 15 radiation-hydrodynamical dwarf galaxies covering the ultrafaint to the dwarf irregular regime (10 (4) <= M.(z = 0) <= 10 (8) M ((R))) to enable comparisons with observed scaling relations. Each object in the suite is evolved at high resolution ( R 3 pc ) and includes stellar radiation, winds, and supernova feedback channels. We compare with previous EDGE simulations without radiation, finding that radiative feedback results in significantly weaker galactic outflows. This generalizes our previous findings to a wide mass range, and reveals that the effect is most significant at low M-star. Despite this difference, stellar masses stay within a factor of two of each other, and key scaling relations of dwarf galaxies (size-mass, neutral gas-stellar mass, and gas-phase mass-metallicity) emerge correctly in both simulation suites. Only the stellar mass-stellar metallicity relation is strongly sensitive to the change in feedback. This highlights how obtaining statistical samples of dwarf galaxy stellar abundances with next-generation spectrographs will be key to probing and constraining the baryon cycle of dwarf galaxies.

引用

页码：1195 / 1217

页数：23

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