Implications of a Temperature-dependent Initial Mass Function. III. Mass Growth and Quiescence
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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Implications of a Temperature-dependent Initial Mass Function. III. Mass Growth and Quiescence. / Steinhardt, Charles L.; Sneppen, Albert; Hensley, Hagan; Jermyn, Adam S.; Mostafa, Basel; Weaver, John R.; Brammer, Gabriel; Clark, Thomas H.; Davidzon, Iary; Diaconu, Andrei C.; Mobasher, Bahram; Rusakov, Vadim; Toft, Sune.
I: Astrophysical Journal, Bind 934, Nr. 1, 22, 21.07.2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Implications of a Temperature-dependent Initial Mass Function. III. Mass Growth and Quiescence
AU - Steinhardt, Charles L.
AU - Sneppen, Albert
AU - Hensley, Hagan
AU - Jermyn, Adam S.
AU - Mostafa, Basel
AU - Weaver, John R.
AU - Brammer, Gabriel
AU - Clark, Thomas H.
AU - Davidzon, Iary
AU - Diaconu, Andrei C.
AU - Mobasher, Bahram
AU - Rusakov, Vadim
AU - Toft, Sune
PY - 2022/7/21
Y1 - 2022/7/21
N2 - The stellar initial mass function (IMF) is predicted to depend upon the temperature of gas in star-forming molecular clouds. The introduction of an additional parameter, T (IMF), into photometric template fitting suggests most galaxies obey an IMF top heavier than the Galactic IMF. The implications of the revised fit on mass function, quiescence, and turnoff are discussed. At all redshifts, the highest-mass galaxies become quiescent first with the turnoff mass decreasing toward the present. The synchronous turnoff mass across galaxies suggests quiescence is driven by universal mechanisms rather than by stochastic or environmental processes.
AB - The stellar initial mass function (IMF) is predicted to depend upon the temperature of gas in star-forming molecular clouds. The introduction of an additional parameter, T (IMF), into photometric template fitting suggests most galaxies obey an IMF top heavier than the Galactic IMF. The implications of the revised fit on mass function, quiescence, and turnoff are discussed. At all redshifts, the highest-mass galaxies become quiescent first with the turnoff mass decreasing toward the present. The synchronous turnoff mass across galaxies suggests quiescence is driven by universal mechanisms rather than by stochastic or environmental processes.
KW - EARLY-TYPE GALAXIES
KW - SIMILAR-TO 10
KW - STAR-FORMATION HISTORIES
KW - UV LUMINOSITY FUNCTIONS
KW - LESS-THAN 6
KW - FORMING GALAXIES
KW - MAIN-SEQUENCE
KW - BILLION YEARS
KW - BLACK-HOLES
KW - EVOLUTION
U2 - 10.3847/1538-4357/ac7642
DO - 10.3847/1538-4357/ac7642
M3 - Journal article
VL - 934
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
M1 - 22
ER -
ID: 315256053