Results 61 to 70 of about 394,003 (311)
AGN in dwarf galaxies: frequency, triggering processes and the plausibility of AGN feedback [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2019 While active galactic nuclei (AGN) are considered to be key drivers of the evolution of massive galaxies, their potentially significant role in the dwarf-galaxy regime (M* < 109 M⊙) remains largely unexplored. We combine optical and infrared data, from
S. Kaviraj, G. Martin, J. Silk
semanticscholar +1 more source
Evolution of dwarf galaxies: a dynamical perspective [PDF]
Astronomy & Astrophysics, 2014 For a rotating galaxy, the inner circular-velocity gradient d_{R}V(0) provides a direct estimate of the central dynamical mass density, including gas, stars, and dark matter. We consider 60 low-mass galaxies with high-quality HI and/or stellar rotation curves (including starbursting dwarfs, irregulars, and spheroidals), and estimate d_{R}V(0) as V(R_d)/
Federico Lelli +2 more
openaire +4 more sources
Star Formation in Isolated Dwarf Galaxies Hosting Tidal Debris: Extending the Dwarf–Dwarf Merger Sequence [PDF]
Astronomical Journal, 2019 Like massive galaxies, dwarf galaxies are expected to undergo major mergers with other dwarfs. However, the end state of these mergers and the role that merging plays in regulating dwarf star formation are uncertain.
E. Kado-Fong +6 more
semanticscholar +1 more source
The cores of dwarf galaxy haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 1996 We use N-body simulations to examine the effects of mass outflows on the density profiles of cold dark matter (CDM) halos surrounding dwarf galaxies. In particular, we investigate the consequences of supernova-driven winds that expel a large fraction of the baryonic component from a dwarf galaxy disk after a vigorous episode of star formation.
Navarro, Julio F. +2 more
openaire +2 more sources
A Comparison of Outflow Properties in AGN Dwarfs versus Star-forming Dwarfs
The Astrophysical Journal, 2023 Feedback likely plays a crucial role in resolving discrepancies between observations and theoretical predictions of dwarf galaxy properties. Stellar feedback was once believed to be sufficient to explain these discrepancies, but it has thus far failed to
Archana Aravindan +7 more
doaj +1 more source
The Fornax Deep Survey (FDS) with VST. VI. Optical properties of the dwarf galaxies in the Fornax cluster [PDF]
, 2019 The Fornax Deep Survey Dwarf galaxy Catalog (FDSDC) includes 564 dwarf galaxies in the Fornax cluster and the in-falling Fornax A subgroup. We use the FDSDC galaxies for statistical analysis of the structural and stellar population differences in the ...
A. Venhola +20 more
semanticscholar +1 more source
A Catalog of Merging Dwarf Galaxies in the Local Universe [PDF]
Astrophysical Journal Supplement Series, 2018 We present the largest publicly available catalog of interacting dwarf galaxies. It includes 177 nearby merging dwarf galaxies of stellar mass M* < 1010 M⊙ and redshifts z < 0.02.
S. Paudel +4 more
semanticscholar +1 more source
The Dwarf Galaxy Population of the Dorado group down to Mv=-11 [PDF]
, 2000 We present V and I CCD photometry of suspected low-surface brightness dwarf galaxies detected in a survey covering ~2.4 deg^2 around the central region of the Dorado group of galaxies.
Binggeli B. +11 more
core +2 more sources
A Stellar Mass Threshold for Quenching of Field Galaxies
, 2012 We demonstrate that dwarf galaxies (10^7 < M_stellar < 10^9 Msun) with no active star formation are extremely rare (
Aihara +37 more
core +1 more source
No assembly required: mergers are mostly irrelevant for the growth of low-mass dwarf galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Author(s): Fitts, A; Boylan-Kolchin, M; Bullock, JS; Weisz, DR; El-Badry, K; Wheeler, C; Faucher-Giguere, CA; Quataert, E; Hopkins, PF; Keres, D; Wetzel, A; Hayward, CC | Abstract: © 2018 The Author(s).
Alex Fitts +11 more
semanticscholar +1 more source