Results 41 to 50 of about 262,815 (208)
Pegasus W: An Ultrafaint Dwarf Galaxy Outside the Halo of M31 Not Quenched by Reionization
The Astrophysical Journal, 2023 We report the discovery of an ultrafaint dwarf (UFD) galaxy, Pegasus W, located on the far side of the Milky Way–M31 system and outside the virial radius of M31.
Kristen B. W. McQuinn +5 more
doaj +1 more source
The Roles of Mass and Environment in the Quenching of Galaxies. II. [PDF]
The Astrophysical Journal, 2020 Abstract We take advantage of an analytic model of galaxy formation coupled to the merger tree of an N-body simulation to study the roles of environment and stellar mass in the quenching of galaxies. The model has been originally set in order to provide the observed evolution of the stellar mass function as well as reasonable predictions
E. Contini +5 more
openaire +2 more sources
The LEGA-C galaxy survey: Multiple quenching channels for quiescent galaxies at z ∼ 1
Astronomy & AstrophysicsAims. We analyzed the sizes and star formation histories (SFHs) of 2908 galaxies with M★ ≥ 109 M⊙ at 0.6
Nersesian Angelos +11 more
doaj +1 more source
There was a star-forming galaxy that was quenched
, 2022 Cluster galaxies are subject to a whole range of processes and interactions that dramatically change their properties. To shed light on these issues, we analyze the most homogeneous and complete local cluster galaxy survey to date: WINGS/OmegaWINGS, and use stellar population synthesis techniques to obtain properties such as stellar mass, stellar ages,
Pérez-Millán, David +2 more
openaire +2 more sources
The imprint of cosmic web quenching on central galaxies
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We investigate how cosmic web environment impacts the average properties of central galaxies in the Sloan Digital Sky Survey (SDSS). We analyse how the average specific star formation rate, stellar age, metallicity, and element abundance ratio [α/Fe] of SDSS central galaxies depend on distance from the cosmic web nodes, walls ...
N Winkel +5 more
openaire +4 more sources
The Astrophysical JournalStar formation quenching in galaxies plays a crucial role in galaxy evolution and is believed to be driven primarily by galaxy mass and environment.
Yun Zheng +6 more
doaj +1 more source
The Bochum Survey of the Southern Galactic Disk: IV. Multi‐Band Photometry
Astronomische Nachrichten, EarlyView.ABSTRACT The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6°‐wide stripe in the southern galactic disk from September 2010 to September 2019. These fields were observed between 21 and 407 times sim r′$$ {r}^{\prime } $$ultaneously in (8mag≲r′≲18mag$$ 8\kern0.6em \mathrm{mag}\lesssim {r}^{\prime}\lesssim 18\kern0.6em ...
Julia Blex +9 more
wiley +1 more source
The Age of Questions: Truth Regimes and Subjectivity in the Era of Large Language Models
Behavioral Sciences &the Law, EarlyView.ABSTRACT This essay explores how digital technologies shape subjectivity's infra‐political constitution, focusing on large language models (LLMs) like ChatGPT or Gemini within what philosophers, inspired by Michel Foucault, term the “digital truth regime.” After defining this regime, the essay identifies five key traits of LLMs: presentism in truth ...
Charles Corval
wiley +1 more source
, 2021 The distribution of the star formation across galaxy disks is examined with integral field spectroscopy to determine if the distribution varies according to the so-called 'main sequence' locus of galaxies on the plane of integrated star-formation rate ...
Gregory Goldstein (12299549)
core +1 more source
The impact of quenching on galaxy profiles in the
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We study specific star formation rate (sSFR) and gas profiles of star-forming (SF) and green valley (GV) galaxies in the simba cosmological hydrodynamic simulation. SF galaxy half-light radii (Rhalf) at z = 0 and their evolution (∝(1 + z)−0.78) agree with observations.
Sarah Appleby +4 more
openaire +4 more sources