Results 31 to 40 of about 1,076 (177)

There was a star-forming galaxy that was quenched

open access: yes, 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

ΣSFR–M ∗ Diagram: A Valuable Galaxy Evolution Diagnostic to Complement (s)SFR–M ∗ Diagrams

open access: yesThe Astrophysical Journal, 2023
The specific star formation rate (sSFR) is commonly used to describe the level of galaxy star formation (SF) and to select quenched galaxies. However, since it is a relative measure of the young-to-old population, an ambiguity in its interpretation may ...
Samir Salim   +5 more
doaj   +1 more source

Quenching time-scales of galaxies in the eagle simulations

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
Final version accepted to MNRAS.
Ruby J Wright   +5 more
openaire   +4 more sources

The Roles of Mass and Environment in the Quenching of Galaxies. II. [PDF]

open access: yesThe 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

open access: yesAstronomy & Astrophysics
Aims. 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

The imprint of cosmic web quenching on central galaxies

open access: yesMonthly 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

Photometric Objects Around Cosmic Webs (PAC). VII. Disentangling Mass and Environment Quenching with the Aid of Galaxy–Halo Connection in Simulations

open access: yesThe Astrophysical Journal
Star 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 Crystal Structures of High‐ and Low‐Temperature Silver Pyrophosphate: Structural Instability and Its Consequences

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The crystal structures of the high‐temperature and low‐temperature phases of silver pyrophosphate are reported. The structural results are complemented by thermal analysis, vibrational and 31P‐MAS‐NMR spectroscopy studies, and density functional theory calculations.
Matthias Weil   +8 more
wiley   +1 more source

Death by Impact: Evidence for Merger-driven Quenching in a Collisional Ring Galaxy at Cosmic Noon

open access: yesThe Astrophysical Journal
The role of interactions and mergers in the rapid quenching of massive galaxies in the early Universe remains uncertain, largely due to the difficulty of directly linking mergers to quenching.
Amir H. Khoram   +9 more
doaj   +1 more source

The Great Cosmic Silence: What Does the Fermi Paradox Tell About the Future of Humanity?

open access: yesGlobal Policy, EarlyView.
ABSTRACT This article examines how institutional time horizons shape the long‐term survival prospects of human technological civilisation. While research on global catastrophic and existential risks has expanded, the temporal structures of political‐economic institutions remain underexamined.
Heikki Patomäki
wiley   +1 more source

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