Results 121 to 130 of about 14,171 (214)

Active Galactic Nuclei in the Green Valley at z ∼ 0.7

open access: yesThe Astrophysical Journal
We present near-infrared (NIR) spectroscopy using the MMT and Magellan infrared spectrograph for a sample of 29 massive galaxies ( $\mathrm{log}\ {M}_{* }/{M}_{\odot }\gtrsim 10$ ) at z ∼ 0.7 with optical spectroscopy from the Large Early Galaxy ...
Charity Woodrum   +7 more
doaj   +1 more source

The cumulative star formation histories of dwarf galaxies with TNG50. I: environment-driven diversity and connection to quenching [PDF]

open access: green, 2021
Gandhali D Joshi   +7 more
openalex   +1 more source

Investigating Galaxy Quenching With The Sdss: Stellar Metallicities As A Tracer Of Quenching Mechanisms

open access: yes, 2017
Peng et al. (2015, Nature, 521, 192) analysed stellar metallicities of 26,000 SDSS galaxies and found that galaxies with stellar masses below 1011 solar masses are primarily quenched due to the halting of the supply of cold gas (strangulation). We take this analysis further by making use of the much larger spectroscopic sample of galaxies in SDSS DR7 ...
Daniel Thomas   +5 more
openaire   +2 more sources

Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence

open access: yesThe Open Journal of Astrophysics
Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starbursts (PSBs) in
Sara Ellison   +5 more
doaj   +1 more source

Improved SED-fitting Assumptions Result in Inside-out Quenching at z ~ 0.5 and Quenching at All Radii Simultaneously at z ~ 1

open access: yesThe Astrophysical Journal
Many studies conclude that galaxies quench from the inside-out by examining profiles of specific star formation rate (sSFR). These are usually measured by fitting spectral energy distributions (SEDs) assuming a fixed dust law and uniform priors on all ...
Alexander de la Vega   +8 more
doaj   +1 more source

Assessment of SDSS-derived Galaxy Morphologies Using HST Imaging

open access: yesThe Astrophysical Journal
The Sloan Digital Sky Survey (SDSS) was foundational to the study of galaxy evolution, having revealed the bimodality of galaxies and the relationship between their structure and star-forming activity.
Chandler Osborne, Samir Salim
doaj   +1 more source

Connection between Stellar Mass Distributions within Galaxies and Quenching Since z = 2 [PDF]

open access: bronze, 2017
Moein Mosleh   +7 more
openalex   +1 more source

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