Results 111 to 120 of about 34,432 (305)
The Astronomical Journal, 2023 We present results from wide-field imaging of the resolved stellar populations of the dwarf spheroidal galaxies Cassiopeia III (And XXXII) and Perseus I (And XXXIII), two satellites in the outer stellar halo of the Andromeda galaxy (M31).
Katherine L. Rhode +10 more
doaj +1 more source
The episodic star formation history of the Carina dwarf spheroidal galaxy [PDF]
, 2014 We present deep photometry of the Carina dwarf spheroidal galaxy in the B and V filters from CTIO/MOSAIC out to and beyond the tidal radius of rell ≈ 0.48 degrees.
T. D. Boer +7 more
semanticscholar +1 more source
Implications and Applications of Kinematic Galaxy Scaling Relations
International Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012 Galaxy scaling relations, which describe a connection between ostensibly unrelated physical characteristics, testify to an underlying order in galaxy formation that requires understanding. I review the development of a scaling relation that (1) unites the well‐known fundamental plane (FP) relation of giant elliptical galaxies and Tully‐Fisher (TF ...
Dennis Zaritsky +2 more
wiley +1 more source
An Analytical Galactic Chemical Evolution Model with Gas Inflow and a Terminal Wind
The Astrophysical JournalWe 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
CHEMICAL SIGNATURES OF THE FIRST SUPERNOVAE IN THE SCULPTOR DWARF SPHEROIDAL GALAXY [PDF]
, 2014 We present a homogeneous chemical abundance analysis of five of the most metal-poor stars in the Sculptor dwarf spheroidal galaxy. We analyze new and archival high resolution spectroscopy from Magellan/MIKE and VLT/UVES and determine stellar parameters ...
J. Simon +5 more
semanticscholar +1 more source
The Tucana dwarf spheroidal: a distant backsplash galaxy of M31? [PDF]
, 2023 Isabel Santos-Santos +2 more
openalex +1 more source
The effect of tides on the Fornax dwarf spheroidal galaxy [PDF]
, 2015 The authors thank M. Breddels for providing Fornax's LOS velocity-dispersion profile measured in elliptical annuli and the referee, M. Wilkinson, for useful comments.
G. Battaglia, A. Sollima, C. Nipoti
semanticscholar +1 more source
Origin of structural and kinematical properties of the Small Magellanic Cloud
, 2009 We investigate structural, kinematical, and chemical properties of stars and gas in the Small Magellanic Cloud (SMC) interacting with the Large Magellanic Cloud (LMC) and the Galaxy based on a series of self-consistent chemodynamical simulations.
Bekki +13 more
core +1 more source
Maximally self-interacting dark matter: models and predictions
Journal of High Energy Physics, 2020 We study self-interacting dark matter (SIDM) scenarios, where the s-wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections are singly parameterized by the dark matter mass, and are featured by strong ...
Ayuki Kamada +2 more
doaj +1 more source
The Astrophysical Journal, 2023 Stellar streams in the Galactic halo are useful probes of the assembly of galaxies like the Milky Way. Many tidal stellar streams that have been found in recent years are accompanied by a known progenitor globular cluster or dwarf galaxy.
Keith Hawkins +10 more
doaj +1 more source