Results 71 to 80 of about 10,431 (186)

VLT/UVES Abundances in Four Nearby Dwarf Spheroidal Galaxies. II. Implications for Understanding Galaxy Evolution [PDF]

open access: bronze, 2003
Eline Tolstoy   +6 more
openalex   +1 more source

Has the Palomar 14 Globular Cluster Been Captured by the Milky Way?

open access: yesThe Astrophysical Journal
We examine a new scenario to model the outer halo globular cluster (GC) Palomar 14 (Pal 14) over its lifetime by performing a comprehensive set of direct N -body calculations.
Akram Hasani Zonoozi   +3 more
doaj   +1 more source

An Analytical Galactic Chemical Evolution Model with Gas Inflow and a Terminal Wind

open access: yesThe Astrophysical Journal
We 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

Dwarf galaxy mass estimators versus cosmological simulations. [PDF]

open access: yesMon Not R Astron Soc, 2017
González-Samaniego A   +7 more
europepmc   +1 more source

Hedgehog: An Isolated Quiescent Dwarf Galaxy at 2.4 Mpc

open access: yesThe Astrophysical Journal Letters
It 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
doaj   +1 more source

Physical properties of RR Lyrae variables in Galactic globular clusters and dwarf spheroidal galaxies

open access: diamond, 2019
Saruta Benkortem   +4 more
openalex   +1 more source

Marvelous Metals: Surveying the Circumgalactic Medium of Simulated Dwarf Galaxies

open access: yesThe Astrophysical Journal
Dwarf 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
doaj   +1 more source

Tracing satellite planes in the Sculptor group

open access: yesAstronomy & Astrophysics
Context. Although substantial progress has been made in reconciling lambda cold dark matter (ΛCDM) simulations with the observed abundance and distribution of satellite galaxies, important tensions persist.
Martínez-Delgado David   +7 more
doaj   +1 more source

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