Gradients of Metallicity and Age of Stars in the Dwarf Spheroidal Galaxies KKs 3 and ESO 269-66
Sign Up to like & getrecommendations! Published in 2018 at "Astrophysics"
DOI: 10.1007/s10511-018-9548-3
Abstract: We compare the properties of the stellar populations of the globular clusters and field stars in two dwarf spheroidal galaxies (dSphs): ESO 269-66, a near neighbor of the giant S0 galaxy NGC 5128, and KKs… read more here.
Keywords: eso 269; dwarf spheroidal; age; kks eso ... See more keywords
Dwarf Spheroidal Galaxies in the M101 Group and Behind it
Sign Up to like & getrecommendations! Published in 2019 at "Astrophysics"
DOI: 10.1007/s10511-019-09582-7
Abstract: We use images from the Hubble Space Telescope to determine the distances to a dozen objects with low surface brightness recently observed around the bright nearby spiral M101. Only two dwarf galaxies, M101-DwA and M101-Dw9,… read more here.
Keywords: dwarf spheroidal; group; m101 group; group behind ... See more keywords
Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco
Sign Up to like & getrecommendations! Published in 2021 at "Physics of the Dark Universe"
DOI: 10.1016/j.dark.2021.100912
Abstract: Milky Way dwarf spheroidal galaxies (dSphs) are among the best candidates to search for signals of dark matter annihilation with Imaging Atmospheric Cherenkov Telescopes, given their high massto-light ratios and the fact that they are… read more here.
Keywords: dark matter; coma berenices; magic telescopes; spheroidal galaxies ... See more keywords
Nuclear star clusters as probes of dark matter halos: the case of the Sagittarius Dwarf Spheroidal Galaxy
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1584
Abstract: The Sagittarius dwarf spheroidal (Sgr dSph) galaxy is currently being accreted and disrupted by the tidal field of the Milky Way. Recent observations have shown that the central region of the dwarf hosts at least… read more here.
Keywords: dwarf; galaxy; dwarf spheroidal; nuclear star ... See more keywords
Robust method for treating astrophysical mismodeling in dark matter annihilation searches of dwarf spheroidal galaxies
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.043017
Abstract: Fermi-LAT observations have strongly constrained dark matter annihilation through the joint-likelihood analysis of dwarf spheroidal galaxies (dSphs). These constraints are expected to be robust because dSphs have measurable dark matter content and produce negligible astrophysical… read more here.
Keywords: dark matter; matter annihilation; dwarf spheroidal; matter ... See more keywords