2024ApJ...964...91C

Query : 2024ApJ...964...91C

2024ApJ...964...91C - Astrophys. J., 964, 91 (2024/March-3)

How Population III Supernovae Determined the Properties of the First Galaxies.

CHEN K.-J., TANG C.-Y., WHALEN D.J., HO M.-Y., TSAI S.-H., OU P.-S. and ONO M.

Abstract (from CDS):

Massive Population III stars can die as energetic supernovae that enrich the early Universe with metals and determine the properties of the first galaxies. With masses of about 109M⊙ at z ≳ 10, these galaxies are believed to be the ancestors of the Milky Way. This paper investigates the impact of Population III supernova remnants (SNRs) from both Salpeter-like and top-heavy initial mass functions (IMFs) on the formation of first galaxies with high-resolution radiation-hydrodynamical simulations with the ENZO code. Our findings indicate that SNRs from a top-heavy Population III IMF produce more metals, leading to more efficient gas cooling and earlier Population II star formation in the first galaxies. From a few hundred to a few thousand Population II stars can form in the central regions of these galaxies. These stars have metallicities of 10–3-10–2, Z⊙, greater than those of extremely metal-poor (EMP) stars. Their mass function follows a power-law distribution with ${dN}({M}_{* })/{{dM}}_{* }\propto {M}_{* }^{\alpha }$, where M* is stellar mass, and α = 2.66-5.83 and is steeper for a top-heavy IMF. We thus find that EMP stars were not typical of most primitive galaxies.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Supernova remnants - Population III stars - Chemical enrichment - Early-type galaxies - Hydrodynamical simulations - CEMP stars - Supernovae

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 2MASS J10105195+2358503 Pe* 10 10 51.9538332706 +23 58 50.481563127     16.01     F0V 16 0

Query : 2024ApJ...964...91C

Basic data :
2MASS J10105195+2358503 -- Chemically Peculiar Star
Other object types: otypes_help 		Opt (LAMOST,SDSS), Pe* (2020ApJ), * (Gaia), NIR (2MASS)
ICRS coord. (ep=J2000) : 		10 10 51.9538332706 +23 58 50.481563127 (Optical) [ 0.0340 0.0264 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		10 08 04.3220945828 +24 13 41.903191126 [ 0.0340 0.0264 90 ]
Gal coord. (ep=J2000) : 		208.7342243733155 +53.7980380994093 [ 0.0340 0.0264 90 ]
Proper motions mas/yr : 		6.095 -72.635 [0.040 0.031 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -90.99149000 [3.40702] / z(spectroscopic) -0.000303 [0.000011] / cz -90.98 [3.41]
   (Opt) C 2020ApJ...894...34D
Parallaxes (mas): 		0.9497 [0.0434] A 2020yCat.1350....0G
Spectral type: 		F0V D 2020MNRAS.491.2280S
Fluxes (10) :
V 16.01 [~] D 2023Natur.618..712X
G 15.800261 [0.002793] C 2022yCat.1355....0G
J 14.653 [0.031] C 2003yCat.2246....0C
H 14.394 [0.048] C 2003yCat.2246....0C
K 14.348 [0.064] C 2003yCat.2246....0C
u (AB) 17.047 [0.008] B 2020ApJS..249....3A
g (AB) 16.192 [0.004] B 2020ApJS..249....3A
r (AB) 15.800 [0.004] B 2020ApJS..249....3A
i (AB) 15.657 [0.005] B 2020ApJS..249....3A
z (AB) 15.594 [0.006] B 2020ApJS..249....3A
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Identifiers (5) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

2MASS J10105195+2358503 SDSS J101051.95+235850.1 Gaia DR3 726298765258334080
LAMOST J101051.95+235850.1 Gaia DR2 726298765258334080

References (16 between 1850 and 2026) (Total 16)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 2    Distance : 2    Fe/H : 2    Plx : 2    PM : 2    SpT : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : 2MASS J10105195+2358503

Link by name to the catalogue in VizieR :

2MASS J10105195+2358503 SDSS J101051.95+235850.1 Gaia DR2 726298765258334080 Gaia DR3 726298765258334080

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