Results 141 to 150 of about 23,012 (280)

The extremely low-metallicity tail of the Sculptor dwarf spheroidal galaxy [PDF]

, 2012
We present abundances for seven stars in the (extremely) low-metallicity tail of the Sculptor dwarf spheroidal galaxy, from spectra taken with X-shooter on the ESO VLT. Targets were selected from the Ca II triplet (CaT) survey of the dwarf abundances and
E. Starkenburg, V. Hill, E. Tolstoy, P. François, M. Irwin, L. Boschman, K. Venn, T. D. Boer, B. Lemasle, P. Jablonka, G. Battaglia, P. Groot, L. Kaper   +12 more
semanticscholar   +1 more source

A Census of Dwarf Galaxy Satellites around LMC-mass Galaxy NGC 2403

The Astrophysical Journal
We present the first comprehensive census of the satellite population around a Large Magellanic Cloud stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions and Stellar Halos (MADCASH) survey. We have surveyed NGC 2403 ( D = 3.0 Mpc) with
Jeffrey L. Carlin, David J. Sand, Burçin Mutlu-Pakdil, Denija Crnojević, Amandine Doliva-Dolinsky, Christopher T. Garling, Annika H. G. Peter, Jean P. Brodie, Duncan A. Forbes, Jonathan R. Hargis, Aaron J. Romanowsky, Kristine Spekkens, Jay Strader, Beth Willman   +13 more
doaj   +1 more source

Astrophysical site(s) of r-process elements in galactic chemodynamical evolution model

EPJ Web of Conferences, 2016
Astrophysical site(s) of rapid neutron-capture process (r-process) is (are) not identified yet. Although core-collapse supernovae have been regarded as one of the possible candidates of the astrophysical site of r-process, nucleosynthesis studies suggest
Hirai Yutaka, Ishimaru Yuhri, Saitoh Takayuki R., Fujii Michiko S., Hidaka Jun, Kajino Toshitaka   +5 more
doaj   +1 more source

LOOKING FOR POSSIBLE DARK MATTER FREE PROGENITORS OF THE CARINA DWARF SPHEROIDAL GALAXY USING N-BODY SIMULATIONS

Momento, 2018
We present a study of the evolution of several different dark matter free possible progenitors of the Carina dSph galaxy, one of the satellites of the Milky Way, using Newtonian numerical N-body simulations.
Diego F Castellanos, Rigoberto A. Casas-Miranda   +1 more
doaj   +1 more source

Overview of the LAMOST survey in the first decade. [PDF]

Innovation (Camb), 2022
Yan H, Li H, Wang S, Zong W, Yuan H, Xiang M, Huang Y, Xie J, Dong S, Yuan H, Bi S, Chu Y, Cui X, Deng L, Fu J, Han Z, Hou J, Li G, Liu C, Liu J, Liu X, Luo A, Shi J, Wu X, Zhang H, Zhao G, Zhao Y.   +26 more
europepmc   +1 more source

The 3.5 keV line from stringy axions

Journal of High Energy Physics, 2017
An interesting result in particle astrophysics is the recent detection of an unexplained 3.5 keV line from galaxy clusters. A promising model, which can explain the morphology of the signal and its non-observation in dwarf spheroidal galaxies, involves a
Michele Cicoli, Victor A. Diaz, Veronica Guidetti, Markus Rummel   +3 more
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

The Kinematics of Dwarf Spheroidal Galaxies

, 1997
I review observational data on the kinematic properties of dwarf spheroidal galaxies in the halo of the Milky Way and beyond. The present data confirm previous claims that these galaxies have unusually large central velocity dispersions. `Simple' sources of bias such as binary stars, internal atmospheric motions, measurement errors, and small sample ...
openaire   +2 more sources

Subaru Telescope -History, active/adaptive optics, instruments, and scientific achievements. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2021
Iye M.
europepmc   +1 more source

Dark matter interpretation of the Fermi-LAT observations toward the outer halo of M31. [PDF]

Phys Rev D, 2021
Karwin CM, Murgia S, Moskalenko IV, Fillingham SP, Burns AK, Fieg M.   +5 more
europepmc   +1 more source