THE ASTROPHYSICAL JOURNAL, 509 : 74 х79, 1998 December 10 ( 1998. ... 1998). ... High-z Type Ia SNs observations combined with the cosmic microwave background (CMB) anisotropy angular power spectrum provide complementary constraints on the densities of matter and the x-component (White 1998 ; Tegmark et al. ... Using CMB data from Hancock et al. (1998) and following the analysis by White (1998), the result favors a яat universe with ) \ 0.94 ^ 0.26, domitot nated by the x-component for a B [1. ...

VARIABLE STARS, THE GALACTIC HALO AND GALAXY FORMATION C. Sterken, N. Samus and L. Szabados (Eds.) 2010 Formation Mechanisms for Spheroidal Stellar Systems O. K. Sil'chenko 1 Sternberg Astronomical Institute of the Moscow State University, Moscow, Russia Abstract. Spheroidal stellar systems on various scales include elliptical galaxies, dwarf spheroidal galaxies, and globular stellar clusters. ... The formation mechanisms of the oldest globular clusters represent a puzzle yet. ... 2009). ...

Rep ort by the ESA-ESO Working Group on Galactic p opulations, chemistry and dynamics Abstract Between the early 40s, when Baade showed the first evidence for the existence of two distinct stellar populations, and today, with our Galaxy surprising us with new substructures discovered almost on a monthly basis, it is clear that a remarkable progress has been achieved in our understanding of the Galaxy, of its structure and stellar populations, and of its chemical and dynamical signatures. Yet, some questions