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A Keck/DEIMOS spectroscopic survey of the faint M31 satellites And IX, And XI, And XII, and And XIII
M. L. M. Collins, S. C. Chapman, M. J. Irwin +8
We present the first spectroscopic analysis of the faint M31 satellite galaxies, AndXI and AndXIII, and a reanalysis of existing spectroscopic data for two further faint companions…
The Dynamical and Chemical Evolution of Dwarf Spheroidal Galaxies
Y. Revaz, P. Jablonka, T. Sawala +8
We present a large sample of fully self-consistent hydrodynamical Nbody/Tree-SPH simulations of isolated dwarf spheroidal galaxies (dSphs). It has enabled us to identify the key ph…
Blue straggler stars in dwarf spheroidal galaxies II: Sculptor and Fornax
M. Mapelli, E. Ripamonti, G. Battaglia +4
The existence of blue straggler stars (BSSs) in dwarf spheroidal galaxies (dSphs) is still an open question. In fact, many BSS candidates have been observed in the Local Group dSph…
Life at the Periphery of the Local Group: the kinematics of the Tucana Dwarf Galaxy
F. Fraternali, E. Tolstoy, M. Irwin +1
Dwarf spheroidal galaxies in the Local Group are usually located close to the Milky Way or M31. Currently, there are two clear exceptions to this rule, and the Tucana dwarf galaxy…