Results 11 to 20 of about 209,794 (214)
Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling [PDF]
Advances in Astronomy, 2010 Galaxy surveys have shown that luminous galaxies are mainly distributed in large filaments and galaxy clusters. The remaining large volumes are virtually devoid of luminous galaxies.
Gottloeber, Stefan, Hoeft, Matthias
core +4 more sources
Characteristic Size and Mass of Galaxies in the Bose-Einstein Condensate Dark Matter Model [PDF]
Physics Letters B, 2016 We study the characteristic length scale of galactic halos in the Bose-Einstein condensate (or scalar field) dark matter model. Considering the evolution of the density perturbation we show that the average background matter density determines the ...
Lee, Jae-Weon
core +5 more sources
A Comparison of Outflow Properties in AGN Dwarfs vs. Star Forming Dwarfs [PDF]
The Astrophysical Journal, 2023 Feedback likely plays a crucial role in resolving discrepancies between observed 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 fully reconcile theory and observations.
Archana Aravindan +7 more
arxiv +2 more sources
Identification and Characterization of a Large Sample of Distant Active Dwarf Galaxies in XMM-SERVS
The Astrophysical Journal, 2023 Active dwarf galaxies are important because they contribute to the evolution of dwarf galaxies and can reveal their hosted massive black holes. However, the sample size of such sources beyond the local universe is still highly limited.
Fan Zou +12 more
doaj +1 more source
The Mass–Metallicity Relation of Dwarf Galaxies at Cosmic Noon from JWST Observations
The Astrophysical Journal Letters, 2023 We present a study of the mass–metallicity relation (MZR) of 51 dwarf galaxies ( M _⋆ ≈ 10 ^6.5 –10 ^9.5 M _⊙ ) at z = 2–3 from the A2744 and SMACS J0723-3732 galaxy cluster fields.
Mingyu Li +15 more
doaj +1 more source
The Astrophysical Journal, 2023 We study the morphologies and structures of 57 dwarf galaxies that are representative of the general population of dwarf galaxies and compare their demographics to a sample of dwarf galaxies hosting optically selected active galactic nuclei (AGNs).
Seth J. Kimbrell +3 more
doaj +1 more source
The Relationship between Slope and Luminosity [PDF]
Kirkuk Journal of Science, 2010 In this study, a sample of galaxies has been adopted. It consists of 112 elliptical galaxies, among them were 56 dwarf elliptical galaxies, which belong to virgo cluster, 37 normal galaxies and 19 bright galaxies. Also, surface brightness profiles fitted
Mohsen H. Ali AL-Khafajy
doaj +1 more source
Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers
The Astrophysical Journal, 2023 Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić +3 more
doaj +1 more source
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
Globular Clusters and the Halos of Dwarf Galaxies
Galaxies, 2017 Many dwarf galaxies have disproportionately rich globular cluster (GC) systems for their luminosities. Moreover, the GCs tend to be preferentially associated with the most metal-poor stellar populations in their parent galaxies, making them attractive ...
Søren S. Larsen
doaj +1 more source