Results 141 to 150 of about 13,205 (261)

A FIRST MEASUREMENT OF THE PROPER MOTION OF THE LEO II DWARF SPHEROIDAL GALAXY [PDF]

, 2011
Sébastien Lépine, Andreas Koch, R. Michael Rich, Konrad Kuijken   +3 more
openalex   +1 more source

Are Local Group Dwarf Spheroidal Galaxies the First Safe Planet-hosting Environments?

The Astrophysical Journal
We explore whether Local Group dwarf spheroidal (dSph) galaxies might have hosted Earth-like planets dwelling unexposed for several billions of years to major galactic threats to life, such as supernovae and gamma-ray bursts.
Stefano Ciabattini, Stefania Salvadori, Leonardo Testi   +2 more
doaj   +1 more source

Elemental Abundances in And XIX from Coadded Spectra

The Astrophysical Journal
With a luminosity similar to that of Milky Way dwarf spheroidal systems like Sextans, but a spatial extent similar to that of ultra-diffuse galaxies, Andromeda (And) XIX is an unusual satellite of M31. To investigate the origin of this galaxy, we measure
L. R. Cullinane, Karoline M. Gilbert, Ivanna Escala, J. Leigh Wojno, Evan N. Kirby, Kateryna A. Kvasova, Erik Tollerud, Michelle L. M. Collins, R. Michael Rich   +8 more
doaj   +1 more source

A wide angle view of the Sagittarius dwarf spheroidal galaxy [PDF]

, 2010
G. Giuffrida, L. Sbordone, S. Zaggia, G. Marconi, P. Bonifacio, C. Izzo, T. Szeifert, R. Buonanno   +7 more
openalex   +1 more source

The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. VIII. A Census of Long-period Variable Stars across the Andromeda Dwarf Satellite System

The Astrophysical Journal
We present a comprehensive catalog, in the Sloan i and Harris V filters, of long-period variable (LPV) stars in the spheroidal dwarf satellites of the Andromeda galaxy based on a dedicated survey for variable stars in Local Group dwarf systems.
Hedieh Abdollahi, Atefeh Javadi, Jacco Th. van Loon, Iain McDonald, Mahdi Abdollahi, Elham Saremi, Habib G. Khosroshahi, László Molnár, Hamidreza Mahani   +8 more
doaj   +1 more source

Little Bear’s pulsating stars: Variable star census of UMi dSph Galaxy

EPJ Web of Conferences, 2017
Recent observations and a photometric search for variable stars in the Ursa Minor dwarf spheroidal galaxy (UMi dSph) are presented. Our observations were taken at Apache Point Observatory in 2014 and 2016 using the 0.5m ARCSAT telescope and the West ...
Kinemuchi K., Jeffery E., Kuehn C., Grabowski K., Nemec J.   +4 more
doaj   +1 more source

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

, 2003
Eline Tolstoy, Kim A. Venn, Matthew Shetrone, Francesca Primas, Vanessa Hill, Andreas Kaufer, Thomas Szeifert   +6 more
openalex   +1 more source

The predicted metallicity distribution of stars in dwarf spheroidal galaxies [PDF]

, 2004
Gustavo A. Lanfranchi, F. Matteuccí
openalex   +1 more source

VLT/FLAMES high-resolution chemical abundances in Sculptor: a textbook dwarf spheroidal galaxy [PDF]

, 2019
V. Hill, Á. Skúladóttir, E. Tolstoy, K. A. Venn, M. D. Shetrone, P. Jablonka, F. Primas, G. Battaglia, T. J. L. de Boer, P. François, A. Helmi, A. Kaufer, B. Letarte, E. Starkenburg, M. Spite   +14 more
openalex   +1 more source

WFPC2 Observations of the Carina Dwarf Spheroidal Galaxy.

The Astronomical Journal, 1997
We present our analysis of Hubble Space Telescope Wide Field Planetary Camera 2 observations in F555W (~V) and F814W (~I) of the Carina dwarf spheroidal galaxy. The resulting V vs (V-I) color-magnitude diagrams reach V ~ 27.1 mag. The reddening of Carina is estimated to be E(V-I) = 0.08 +- 0.02 mag.
openaire   +2 more sources