The Binary Fraction of Stars in Dwarf Galaxies: The Case of Leo II
Spencer, Meghin E.
Walker, Matthew G.
Olszewski, Edward W.
McConnachie, Alan W.
Kirby, Evan N.
- Publisher: American Astronomical Society
Astrophysics - Astrophysics of Galaxies
arxiv: Astrophysics::Galaxy Astrophysics | Astrophysics::Cosmology and Extragalactic Astrophysics | Astrophysics::Earth and Planetary Astrophysics | Astrophysics::Solar and Stellar Astrophysics
We combine precision radial velocity data from four different published works of the stars in the Leo II dwarf spheroidal galaxy. This yields a data set that spans 19 years, has 14 different epochs of observation, and contains 372 unique red giant branch stars, 196 of w...