A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector

We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these...
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Autor*in:	Yasha Kaushal [verfasserIn] Angelos Nersesian [verfasserIn] Rachel Bezanson [verfasserIn] Arjen van der Wel [verfasserIn] Joel Leja [verfasserIn] Adam Carnall [verfasserIn] Anna Gallazzi [verfasserIn] Stefano Zibetti [verfasserIn] Gourav Khullar [verfasserIn] Marijn Franx [verfasserIn] Adam Muzzin [verfasserIn] Anna de Graaff [verfasserIn] Camilla Pacifici [verfasserIn] Katherine E. Whitaker [verfasserIn] Eric F. Bell [verfasserIn] Marco Martorano [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics

Übergeordnetes Werk:	In: The Astrophysical Journal - IOP Publishing, 2022, 961(2024), 1, p 118
Übergeordnetes Werk:	volume:961 ; year:2024 ; number:1, p 118

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3847/1538-4357/ad0c4e

Katalog-ID:	DOAJ097526886

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allfields	10.3847/1538-4357/ad0c4e doi (DE-627)DOAJ097526886 (DE-599)DOAJ65ffee9dee484f0eb98183df6ce5919f DE-627 ger DE-627 rakwb eng QB460-466 Yasha Kaushal verfasserin aut A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe. Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics Astrophysics Angelos Nersesian verfasserin aut Rachel Bezanson verfasserin aut Arjen van der Wel verfasserin aut Joel Leja verfasserin aut Adam Carnall verfasserin aut Anna Gallazzi verfasserin aut Stefano Zibetti verfasserin aut Gourav Khullar verfasserin aut Marijn Franx verfasserin aut Adam Muzzin verfasserin aut Anna de Graaff verfasserin aut Camilla Pacifici verfasserin aut Katherine E. Whitaker verfasserin aut Eric F. Bell verfasserin aut Marco Martorano verfasserin aut In The Astrophysical Journal IOP Publishing, 2022 961(2024), 1, p 118 (DE-627)269019219 (DE-600)1473835-1 15384357 nnns volume:961 year:2024 number:1, p 118 https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/article/65ffee9dee484f0eb98183df6ce5919f kostenfrei https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/toc/1538-4357 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 961 2024 1, p 118
spelling	10.3847/1538-4357/ad0c4e doi (DE-627)DOAJ097526886 (DE-599)DOAJ65ffee9dee484f0eb98183df6ce5919f DE-627 ger DE-627 rakwb eng QB460-466 Yasha Kaushal verfasserin aut A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe. Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics Astrophysics Angelos Nersesian verfasserin aut Rachel Bezanson verfasserin aut Arjen van der Wel verfasserin aut Joel Leja verfasserin aut Adam Carnall verfasserin aut Anna Gallazzi verfasserin aut Stefano Zibetti verfasserin aut Gourav Khullar verfasserin aut Marijn Franx verfasserin aut Adam Muzzin verfasserin aut Anna de Graaff verfasserin aut Camilla Pacifici verfasserin aut Katherine E. Whitaker verfasserin aut Eric F. Bell verfasserin aut Marco Martorano verfasserin aut In The Astrophysical Journal IOP Publishing, 2022 961(2024), 1, p 118 (DE-627)269019219 (DE-600)1473835-1 15384357 nnns volume:961 year:2024 number:1, p 118 https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/article/65ffee9dee484f0eb98183df6ce5919f kostenfrei https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/toc/1538-4357 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 961 2024 1, p 118
allfields_unstemmed	10.3847/1538-4357/ad0c4e doi (DE-627)DOAJ097526886 (DE-599)DOAJ65ffee9dee484f0eb98183df6ce5919f DE-627 ger DE-627 rakwb eng QB460-466 Yasha Kaushal verfasserin aut A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe. Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics Astrophysics Angelos Nersesian verfasserin aut Rachel Bezanson verfasserin aut Arjen van der Wel verfasserin aut Joel Leja verfasserin aut Adam Carnall verfasserin aut Anna Gallazzi verfasserin aut Stefano Zibetti verfasserin aut Gourav Khullar verfasserin aut Marijn Franx verfasserin aut Adam Muzzin verfasserin aut Anna de Graaff verfasserin aut Camilla Pacifici verfasserin aut Katherine E. Whitaker verfasserin aut Eric F. Bell verfasserin aut Marco Martorano verfasserin aut In The Astrophysical Journal IOP Publishing, 2022 961(2024), 1, p 118 (DE-627)269019219 (DE-600)1473835-1 15384357 nnns volume:961 year:2024 number:1, p 118 https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/article/65ffee9dee484f0eb98183df6ce5919f kostenfrei https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/toc/1538-4357 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 961 2024 1, p 118
allfieldsGer	10.3847/1538-4357/ad0c4e doi (DE-627)DOAJ097526886 (DE-599)DOAJ65ffee9dee484f0eb98183df6ce5919f DE-627 ger DE-627 rakwb eng QB460-466 Yasha Kaushal verfasserin aut A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe. Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics Astrophysics Angelos Nersesian verfasserin aut Rachel Bezanson verfasserin aut Arjen van der Wel verfasserin aut Joel Leja verfasserin aut Adam Carnall verfasserin aut Anna Gallazzi verfasserin aut Stefano Zibetti verfasserin aut Gourav Khullar verfasserin aut Marijn Franx verfasserin aut Adam Muzzin verfasserin aut Anna de Graaff verfasserin aut Camilla Pacifici verfasserin aut Katherine E. Whitaker verfasserin aut Eric F. Bell verfasserin aut Marco Martorano verfasserin aut In The Astrophysical Journal IOP Publishing, 2022 961(2024), 1, p 118 (DE-627)269019219 (DE-600)1473835-1 15384357 nnns volume:961 year:2024 number:1, p 118 https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/article/65ffee9dee484f0eb98183df6ce5919f kostenfrei https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/toc/1538-4357 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 961 2024 1, p 118
allfieldsSound	10.3847/1538-4357/ad0c4e doi (DE-627)DOAJ097526886 (DE-599)DOAJ65ffee9dee484f0eb98183df6ce5919f DE-627 ger DE-627 rakwb eng QB460-466 Yasha Kaushal verfasserin aut A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe. Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics Astrophysics Angelos Nersesian verfasserin aut Rachel Bezanson verfasserin aut Arjen van der Wel verfasserin aut Joel Leja verfasserin aut Adam Carnall verfasserin aut Anna Gallazzi verfasserin aut Stefano Zibetti verfasserin aut Gourav Khullar verfasserin aut Marijn Franx verfasserin aut Adam Muzzin verfasserin aut Anna de Graaff verfasserin aut Camilla Pacifici verfasserin aut Katherine E. Whitaker verfasserin aut Eric F. Bell verfasserin aut Marco Martorano verfasserin aut In The Astrophysical Journal IOP Publishing, 2022 961(2024), 1, p 118 (DE-627)269019219 (DE-600)1473835-1 15384357 nnns volume:961 year:2024 number:1, p 118 https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/article/65ffee9dee484f0eb98183df6ce5919f kostenfrei https://doi.org/10.3847/1538-4357/ad0c4e kostenfrei https://doaj.org/toc/1538-4357 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 961 2024 1, p 118
language	English
source	In The Astrophysical Journal 961(2024), 1, p 118 volume:961 year:2024 number:1, p 118
sourceStr	In The Astrophysical Journal 961(2024), 1, p 118 volume:961 year:2024 number:1, p 118
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics Astrophysics
isfreeaccess_bool	true
container_title	The Astrophysical Journal
authorswithroles_txt_mv	Yasha Kaushal @@aut@@ Angelos Nersesian @@aut@@ Rachel Bezanson @@aut@@ Arjen van der Wel @@aut@@ Joel Leja @@aut@@ Adam Carnall @@aut@@ Anna Gallazzi @@aut@@ Stefano Zibetti @@aut@@ Gourav Khullar @@aut@@ Marijn Franx @@aut@@ Adam Muzzin @@aut@@ Anna de Graaff @@aut@@ Camilla Pacifici @@aut@@ Katherine E. Whitaker @@aut@@ Eric F. Bell @@aut@@ Marco Martorano @@aut@@
publishDateDaySort_date	2024-01-01T00:00:00Z
hierarchy_top_id	269019219
id	DOAJ097526886
language_de	englisch
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callnumber-first	Q - Science
author	Yasha Kaushal
spellingShingle	Yasha Kaushal misc QB460-466 misc Galaxy evolution misc Galaxy formation misc Galaxy stellar content misc Galaxy spectroscopy misc Galaxy photometry misc Bayesian statistics misc Astrophysics A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector
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topic_title	QB460-466 A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector Galaxy evolution Galaxy formation Galaxy stellar content Galaxy spectroscopy Galaxy photometry Bayesian statistics
topic	misc QB460-466 misc Galaxy evolution misc Galaxy formation misc Galaxy stellar content misc Galaxy spectroscopy misc Galaxy photometry misc Bayesian statistics misc Astrophysics
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title	A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector
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title_full	A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector
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author_browse	Yasha Kaushal Angelos Nersesian Rachel Bezanson Arjen van der Wel Joel Leja Adam Carnall Anna Gallazzi Stefano Zibetti Gourav Khullar Marijn Franx Adam Muzzin Anna de Graaff Camilla Pacifici Katherine E. Whitaker Eric F. Bell Marco Martorano
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title_sort	census of star formation histories of massive galaxies at 0.6 < z < 1 from spectrophotometric modeling using bagpipes and prospector
callnumber	QB460-466
title_auth	A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector
abstract	We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe.
abstractGer	We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe.
abstract_unstemmed	We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) < 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these ∼1800 star-forming and ∼1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools— Bagpipes and Prospector —to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t _50 and t _90 , corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t _10 ). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe—low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation ( τ _SF,late = t _90 – t _50 ) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe.
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title_short	A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector
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A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector

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