Spatially resolved star formation and inside-out quenching in the TNG50 simulation and 3D-HST observations
Spatially resolved star formation and inside-out quenching in the TNG50 simulation and 3D-HST observations
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TNG50 模拟和 3D-HST 观测中的空间分辨恒星形成和由内而外的猝灭
DOI:
10.1093/mnras/stab2131
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发表时间:
2021
影响因子:
4.8
通讯作者:
Terrazas, Bryan A
中科院分区:
文献类型:
--
作者:
Nelson, Erica J;Tacchella, Sandro;Diemer, Benedikt;Leja, Joel;Hernquist, Lars;Whitaker, Katherine E;Weinberger, Rainer;Pillepich, Annalisa;Nelson, Dylan;Terrazas, Bryan A
We compare the star-forming main sequence (SFMS) of galaxies – both integrated and resolved on 1 kpc scales – between the high-resolution TNG50 simulation of IllustrisTNG and observations from the 3D-HST slitless spectroscopic survey atz∼ 1. Contrasting integrated star formation rates (SFRs), we find that the slope and normalization of the star-forming main sequence in TNG50 are quantitatively consistent with values derived by fitting observations from 3D-HST with theProspectorBayesian inference framework. The previous offsets of 0.2–1 dex between observed and simulated main-sequence normalizations are resolved when using the updated masses and SFRs fromProspector. The scatter is generically smaller in TNG50 than in 3D-HST for more massive galaxies withM*> 1010M⊙, by ∼10–40 per cent, after accounting for observational uncertainties. When comparing resolved star formation, we also find good agreement between TNG50 and 3D-HST: average specific star formation rate (sSFR) radial profiles of galaxies at all masses and radii below, on, and above the SFMS are similar in both normalization andshape. Most noteworthy, massive galaxies withM*> 1010.5M⊙, which have fallen below the SFMS due to ongoing quenching, exhibit a clear central SFR suppression, in both TNG50 and 3D-HST. In contrast, the original Illustris simulation and a variant TNG run without black hole kinetic wind feedback, do not reproduce the central SFR profile suppression seen in data. In TNG, inside-out quenching is due to the supermassive black hole (SMBH) feedback model operating at low accretion rates.
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DOI:
10.1093/mnras/stab1803
发表时间:
2020-07
期刊:
arXiv: Astrophysics of Galaxies
影响因子:
--
作者:
Z. Hemler;P. Torrey;J. Qi;L. Hernquist;M. Vogelsberger;Xiangcheng Ma;L. Kewley;D. Nelson;A. Pillepich;R. Pakmor;F. Marinacci
通讯作者:
Z. Hemler;P. Torrey;J. Qi;L. Hernquist;M. Vogelsberger;Xiangcheng Ma;L. Kewley;D. Nelson;A. Pillepich;R. Pakmor;F. Marinacci
DOI:
10.3847/1538-4357/ab0ca2
发表时间:
2018-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
N. F. Schreiber;H. Übler;R. Davies;R. Genzel;R. Genzel;E. Wisnioski;E. Wisnioski;S. Belli;
通讯作者:
N. F. Schreiber;H. Übler;R. Davies;R. Genzel;R. Genzel;E. Wisnioski;E. Wisnioski;S. Belli;
DOI:
10.1046/j.1365-8711.2003.06292.x
发表时间:
2002-05
影响因子:
4.8
作者:
G. Kauffmann;T. Heckman;S. White;S. Charlot;C. Tremonti;E. Peng;M. Seibert;J. Brinkmann;R. Nich
通讯作者:
G. Kauffmann;T. Heckman;S. White;S. Charlot;C. Tremonti;E. Peng;M. Seibert;J. Brinkmann;R. Nich
DOI:
10.3847/1538-4357/abbfa7
发表时间:
2020-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
S. Lower;D. Narayanan;J. Leja;Benjamin D. Johnson;C. Conroy;R. Dav'e
通讯作者:
S. Lower;D. Narayanan;J. Leja;Benjamin D. Johnson;C. Conroy;R. Dav'e
DOI:
10.3847/2041-8213/ab0f34
发表时间:
2018-12
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
T. Starkenburg;S. Tonnesen;Claire Kopenhafer
通讯作者:
T. Starkenburg;S. Tonnesen;Claire Kopenhafer