Results 121 to 130 of about 34,388 (227)

Ultraviolet Dust Grain Properties in Starburst Galaxies: Evidence from Radiative Transfer Modeling and Local Group Extinction Curves

open access: yes, 2005
This paper summarizes the evidence of the ultraviolet properties of dust grains found in starburst galaxies. Observations of starburst galaxies clearly show that the 2175 A feature is weak or absent.
Gordon, Karl D.
core   +2 more sources

Starbursts and Galaxy Evolution

open access: yes, 2004
Starbursts are extreme concentrations of star-forming activity with mass conversion surface densities reaching over 1000 times higher than normal for disk galaxies. They are responsible for a large fraction of all cosmic star formation. They have shaped the cosmic landscape not just in individual galaxies but though the effects of "superwinds" that ...
openaire   +2 more sources

Star formation, starbursts and quenching across the Coma supercluster

open access: yes, 2010
We analyse Spitzer MIPS 24micron observations, and SDSS (DR7) optical broadband photometry and spectra, to investigate the star formation (SF) properties of galaxies residing in the Coma supercluster region.
Adami   +92 more
core   +1 more source

No Metallicity Preference in Fast Radio Burst Host Galaxies

open access: yesThe Astrophysical Journal Letters
Fast radio bursts (FRBs) are millisecond-duration extragalactic radio transients of unknown origin, and studying their host galaxies could offer clues to constrain progenitor models.
Shotaro Yamasaki   +3 more
doaj   +1 more source

Machine Learning Classification of COSMOS2020 Galaxies: Quiescent versus Star-forming

open access: yesThe Astrophysical Journal
Accurately distinguishing between quiescent and star-forming galaxies is essential for understanding galaxy evolution. Traditional methods, such as spectral energy distribution (SED) fitting, can be computationally expensive and may struggle to capture ...
Vahid Asadi   +6 more
doaj   +1 more source

The Cosmic Owl: Twin Active Collisional Ring Galaxies with Starburst Merging Front at z = 1.14

open access: yesThe Astrophysical Journal
Galaxy mergers play a critical role in driving galaxy evolution, especially by transforming galaxy morphology, redistributing gas around galaxies, triggering active galactic nuclei (AGN), and stimulating star formation.
Mingyu Li   +14 more
doaj   +1 more source

Starburst ages in HII galaxies [PDF]

open access: yes
The age of the starbursts of a few H2 galaxies is derived from optical photometry and compared with previous results from radio continuum spectra. H2 galaxies are gas rich and characterized by the dominance of giant H2 regions, blue stellar colors, high ...
Deeg, Hans-Joerg
core   +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

Massive dusty multiphase outflow in local merger shows no sign of slowing on kiloparsec scales

open access: yesAstronomy & Astrophysics
We use ALMA CO(1-0) observations and VLT/MUSE rest-frame optical data of the ultraluminous infrared galaxy (ULIRG) IRAS20100-4156 at z = 0.1297 to characterize its powerful outflow in multiple phases using tracers of cold molecular, ionized, and neutral ...
Hagedorn B.   +4 more
doaj   +1 more source

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