Results 31 to 40 of about 23,012 (280)
Schwarzschild dynamical model of the Fornax dwarf spheroidal galaxy [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present a full dynamical model of the Fornax dwarf spheroidal galaxy obtained with the spherically symmetric Schwarzschild orbit superposition method applied to the largest kinematic data set presently available.
K. Kowalczyk +3 more
semanticscholar +1 more source
Life and times of dwarf spheroidal galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 12 pages, 6 figures, MNRAS ...
SALVADORI, STEFANIA +2 more
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The Population of Pulsating Variable Stars in the Sextans Dwarf Spheroidal Galaxy [PDF]
Astronomical Journal, 2018 A large extension of the Sextans dwarf spheroidal galaxy, 7 deg2, has been surveyed for variable stars using the Dark Energy Camera at the Blanco Telescope at Cerro Tololo Inter-American Observatory, Chile.
Kathy Vivas +4 more
semanticscholar +1 more source
Dwarf spheroidal galaxies: Keystones of galaxy evolution [PDF]
Publications of the Astronomical Society of the Pacific, 1994 Dwarf spheroidal galaxies are the most insignificant extragalactic stellar systems in terms of their visibility, but potentially very significant in terms of their role in the formation and evolution of much more luminous galaxies. We discuss the present observational data and their implications for theories of the formation and evolution of both dwarf
John S. Gallagher, Rosemary F. G. Wyse
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Dwarf Cepheids in the Carina Dwarf Spheroidal Galaxy [PDF]
The Astronomical Journal, 1998 20 pages of text, 7 ...
Denise Hurley-Keller +2 more
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Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1994 Dwarf Spheroidal (dSph) galaxies are the faintest baryonic systems recognized as galaxies. Understanding the structure and stellar populations of these systems is critical for the modelling of their formation and evolution, and by extension, for understanding the general problem of galaxy formation ...
openaire +2 more sources
Journal of High Energy Physics, 2020 In hidden sector models, dark matter does not directly couple to the particle content of the Standard Model, strongly suppressing rates at direct detection experiments, while still allowing for large signals from annihilation.
Dan Hooper +4 more
doaj +1 more source
The Astronomical Journal, 2023 SX Phoenicis (SXP) variables are short-period pulsating stars that exhibit a period–luminosity (PL) relation. We derived the gri -band PL and extinction-free period–Wesenheit (PW) relations, as well as the period-color and reddening-free period-Q-index ...
Chow-Choong Ngeow +6 more
doaj +1 more source
No WIMP mini-spikes in dwarf spheroidal galaxies [PDF]
Journal of Cosmology and Astroparticle Physics, 2015 The formation of black holes inevitably affects the distribution of dark and baryonic matter in their vicinity, leading to an enhancement of the dark matter density, called spike, and if dark matter is made of WIMPs, to a strong enhancement of the dark matter annihilation rate.
Wanders, Mark +3 more
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ZIRCONIUM ABUNDANCES IN THE CENTRAL PART OF THE dSph FORNAX GALAXY
Odessa Astronomical Publications, 2017 We derived LTE zirconium abundance in a sample of 81 giant stars in dwarf spheroidal Fornax galaxy. The LTE synthesis was used for this aim. We obtained the lower Zr abundance in Fornax galaxy comparing to the relevant value in the thick/thin disc of the
S. M. Andrievsky +3 more
doaj +1 more source