Results 141 to 150 of about 9,154 (212)

JADES + JEMS: A Detailed Look at the Buildup of Central Stellar Cores and Suppression of Star Formation in Galaxies at Redshifts 3 < z < 4.5

open access: yesThe Astrophysical Journal
We present a spatially resolved study of stellar populations in six galaxies with stellar masses M _* ∼ 10 ^10 M _☉ at z ∼ 3.7 using 14-filter James Webb Space Telescope (JWST)/NIRCam imaging from the JADES and JEMS surveys. The six galaxies are visually
Zhiyuan Ji   +32 more
doaj   +1 more source

Galaxy Quenching across the Cosmic Web: Disentangling Mass and Environment with SDSS DR18

open access: yesThe Astrophysical Journal
We investigate the influence of large-scale cosmic web environments on galaxy quenching using a volume-limited, stellar mass-matched galaxy sample from Data Release 18 from the Sloan Digital Sky Survey.
Anindita Nandi, Biswajit Pandey
doaj   +1 more source

Can Supernovae Quench Star Formation in High-z Galaxies?

open access: yesThe Astrophysical Journal
JWST is providing a unique opportunity to directly study the feedback processes regulating star formation (SF) in early galaxies. The two z > 5 quiescent systems (JADES-GS-z7-01-QU and MACS0417-z5BBG) detected so far show a recent starburst after which ...
Viola Gelli   +3 more
doaj   +1 more source

Discovery and Characterization of Two Ultrafaint Dwarfs outside the Halo of the Milky Way: Leo M and Leo K

open access: yesThe Astrophysical Journal
We report the discovery of two ultrafaint dwarf galaxies, Leo M and Leo K, that lie outside the halo of the Milky Way (MW). Using Hubble Space Telescope imaging of the resolved stars, we create color–magnitude diagrams reaching the oldest main-sequence ...
Kristen. B. W. McQuinn   +6 more
doaj   +1 more source

A Quenched and Relatively Isolated Dwarf Galaxy in the Local Volume

open access: yesThe Astrophysical Journal
An increasing number of discoveries of isolated and quenched dwarf galaxies are challenging the idea that the present-day local environment of low-mass systems is the main determinant of their quenching.
Tehreem N. Hai   +9 more
doaj   +1 more source

History-dependent phase transition character. [PDF]

open access: yesEur Phys J E Soft Matter, 2022
Polanšek J   +5 more
europepmc   +1 more source

Spatially Resolving Galaxy Environmental Quenching in the SAMI Galaxy Survey

open access: yes, 2019
In order to identify how spatially resolved star formation depends on environment, we use the unitless scale-radius ratio (r50,Hα/r50,cont) (building on earlier work of Schaefer et al. 2017). We will use this metric to investigate quenching across a much enlarged dynamic range of environment (from clusters to the field), and with the full SAMI Galaxy ...
openaire   +1 more source

Thermodynamics of evolution and the origin of life. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Vanchurin V   +3 more
europepmc   +1 more source

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