Results 21 to 30 of about 346,903 (248)
Phenomenological distribution of dark matter halos of galaxy comprising of stellar streams [PDF]
, 2021 Using the potential associated with NFW mass profile (Navarro et al. in Mon. Not. R. Astron. Soc. 402:21, 2010) enclosed at scale radius rₛ, we calculate the partition function of the clustering of dark halos comprising of stellar streams, which are the ...
Rocca, Mario Carlos +3 more
core +1 more source
THE STELLAR HALOS OF MASSIVE ELLIPTICAL GALAXIES [PDF]
The Astrophysical Journal, 2012 To appear in ApJ, 15 pages, 9 ...
Greene, Jenny E. +4 more
openaire +2 more sources
The elusive stellar halo of the Triangulum galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 17 pages, 23 figures, accepted for publication in ...
Mcmonigal, B. +9 more
openaire +5 more sources
The extended ‘stellar halo’ of the Ursa Minor dwarf galaxy
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Stellar candidates in the Ursa Minor (UMi) dwarf galaxy have been found using a new Bayesian algorithm applied to Gaia EDR3 data. Five of these targets are located in the extreme outskirts of UMi, from ∼5 to 12 elliptical half-light radii (rh), where rh(UMi) = 17.32 ± 0.11 arcmin, and have been observed with the high ...
Federico Sestito +11 more
openaire +5 more sources
Ghostly Galaxies: Accretion-dominated Stellar Systems in Low-mass Dark Matter Halos
The Astrophysical Journal, 2023 Wide-area deep imaging surveys have discovered large numbers of extremely low surface brightness (LSB) dwarf galaxies, which challenge galaxy formation theory and, potentially, offer new constraints on the nature of dark matter.
Chung-Wen Wang +4 more
doaj +1 more source
Feedback and the formation of dwarf galaxy stellar haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Stellar population studies show that low mass galaxies in all environments exhibit stellar halos that are older and more spherically distributed than the main body of the galaxy. In some cases, there is a significant intermediate age component that extends beyond the young disk. We examine a suite of Smoothed Particle Hydrodynamic (SPH) simulations and
Stinson, Greg +5 more
openaire +2 more sources
Stellar haloes of disc galaxies at z ∼ 1 [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 14 pages, 14 figures. Accepted in MNRAS.
Trujillo, I, Bakos, Judit
openaire +3 more sources
Decoding Galactic Merger Histories
Galaxies, 2017 Galaxy mergers are expected to influence galaxy properties, yet measurements of individual merger histories are lacking. Models predict that merger histories can be measured using stellar halos and that these halos can be quantified using observations of
Eric F. Bell +7 more
doaj +1 more source
Halo Properties from Observable Measures of Environment: I. Halo and Subhalo Masses
The Open Journal of Astrophysics, 2023 The stellar mass - halo mass relation provides a strong basis for connecting galaxies to their host dark matter halos in both simulations and observations.
Haley Bowden +2 more
doaj +1 more source
, 2014 Galaxy masses play a fundamental role in our understanding of structure formation models. This review addresses the variety and reliability of mass estimators that pertain to stars, gas, and dark matter.
Courteau, Stephane +10 more
core +1 more source