Results 31 to 40 of about 58,632 (214)
The Astrophysical Journal, 2023 Dwarf galaxies located in extremely underdense cosmic voids are excellent test beds for disentangling the effects of large-scale environments on galaxy formation and evolution. We present the first results of the Dwarfs in Void Environments Survey, which
Mithi A. C. de los Reyes +5 more
doaj +1 more source
Uncovering blue diffuse dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Extremely metal poor (XMP) galaxies are known to be very rare, despite the large numbers of low-mass galaxies predicted by the local galaxy luminosity function. This paper presents a sub-sample of galaxies that were selected via a morphology-based search on SDSS images with the aim of finding these elusive XMP galaxies. By using the recently discovered
B. L. James +5 more
openaire +3 more sources
Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program
The Astrophysical Journal, 2023 We introduce the DESI LOW- Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method.
Elise Darragh-Ford +41 more
doaj +1 more source
Star Formation in Sculptor Group Dwarf Irregular Galaxies and the Nature of "Transition" Galaxies [PDF]
, 2002 We present new H-alpha narrow band imaging of the HII regions in eight Sculptor Group dwarf irregular (dI) galaxies. Comparing the Sculptor Group dIs to the Local Group dIs, we find that the Sculptor Group dIs have, on average, lower values of SFR when ...
Babul A. +10 more
core +1 more source
Sagittarius: the nearest dwarf galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 MNRAS in press, 22pp uuencoded PS file, 26 printed figures available on request from gil@ast.cam.ac ...
Ibata, Rodrigo +2 more
openaire +2 more sources
Star formation histories of dwarf galaxies in the FIRE simulations: dependence on mass and Local Group environment [PDF]
, 2019 We study star formation histories (SFHs) of $\simeq500$ dwarf galaxies (stellar mass $M_\ast = 10^5 - 10^9\,M_\odot$) from FIRE-2 cosmological zoom-in simulations.
Boylan-Kolchin, Michael +15 more
core +4 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 Astrophysical Journal, 1983 We propose that dwarf elliptical galaxies are the bound remnants of more massive stellar systems, such as a parent galaxy which has lost more than half its mass in gas ejection during a burst of star formation, or an unbound tidal debris produced during the interaction of two giant galaxies.
H. Gerola, P. Carnevali, E. E. Salpeter
openaire +1 more source
ANGULAR MOMENTUM OF DWARF GALAXIES [PDF]
The Astrophysical Journal Letters, 2016 ABSTRACT We present measurements of baryonic mass and specific angular momentum (sAM) in 14 rotating dwarf Irregular (dIrr) galaxies from the LITTLE THINGS sample.
Kirsty M. Butler +2 more
openaire +2 more sources
Bose-Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves
Advances in High Energy Physics, 2017 We present a comparative confrontation of both the Bose-Einstein Condensate (BEC) and the Navarro-Frenk-White (NFW) dark halo models with galactic rotation curves.
M. Dwornik +3 more
doaj +1 more source