Results 191 to 200 of about 402,684 (314)
MaNGA AGN dwarf galaxies (MAD)
Astronomy & AstrophysicsContext. Feedback from an active galactic nucleus (AGN) is one of the most important mechanisms in galaxy evolution. This phenomenon is usually found in massive galaxies and is known to regulate star formation. Although dwarf galaxies are assumed to be regulated by supernova feedback, recent studies have offered evidence to support the presence of AGN ...
V. Rodríguez Morales +6 more
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An Analytical Galactic Chemical Evolution Model with Gas Inflow and a Terminal Wind
The Astrophysical JournalWe present a new analytical galactic chemical evolution (GCE) model with gas inflow, internally caused outflow, and extra gas loss after a period of time. The latter mimics the ram pressure stripping of a dwarf satellite galaxy near the pericenter of its
Kateryna A. Kvasova, Evan N. Kirby
doaj +1 more source
Hot Dust and Polycyclic Aromatic Hydrocarbon Emission at Low Metallicity: ASpitzerSurvey of Local Group and Other Nearby Dwarf Galaxies [PDF]
, 2006 D. C. Jackson +6 more
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Hedgehog: An Isolated Quiescent Dwarf Galaxy at 2.4 Mpc
The Astrophysical Journal LettersIt is well known that almost all isolated dwarf galaxies are actively forming stars. We report the discovery of dw1322m2053 (nicknamed Hedgehog), an isolated quiescent dwarf galaxy at a distance of 2.40 ± 0.15 Mpc with a stellar mass of M _⋆ ≈ 10 ^5.8 M ...
Jiaxuan Li +3 more
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Marvelous Metals: Surveying the Circumgalactic Medium of Simulated Dwarf Galaxies
The Astrophysical JournalDwarf galaxies are uniquely sensitive to feedback processes and known to experience substantial mass and metal loss from their disks. Here, we investigate the circumgalactic medium (CGM) of 64 isolated dwarf galaxies ( $6.0\lt \mathrm{log}({M}_{* }/{M}_{\
Daniel R. Piacitelli +9 more
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Dwarf galaxy mass estimators versus cosmological simulations. [PDF]
Mon Not R Astron Soc, 2017 González-Samaniego A +7 more
europepmc +1 more source
Chemical Abundances in the Leiptr Stellar Stream: A Disrupted Ultra-faint Dwarf Galaxy?
The Open Journal of AstrophysicsChemical abundances of stellar streams can be used to determine the nature of a stream's progenitor. Here we study the progenitor of the recently discovered Leiptr stellar stream, which was previously suggested to be a tidally disrupted halo globular ...
Kaia R. Atzberger +13 more
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The molecular gas resolved by ALMA in the low-metallicity dwarf merging galaxy Haro 11
, 2022 Yulong Gao +6 more
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The Host Galaxy of the Hyperactive Repeating FRB 20240114A: Behind a Galaxy Cluster
The Astrophysical Journal LettersWe report on the optical spectroscopic observations of the host galaxy of the hyperactive repeating fast radio burst (FRB) FRB 20240114A. The host galaxy is a dwarf galaxy at a redshift of z = 0.1306 ± 0.0002.
Xiang-Lei Chen +18 more
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