The vertical profiles of chain and spiral galaxies in the Hubble Space Telescope Ultra Deep
Field (UDF) are fit to sech 2 functions convolved with stellar profiles in order to measure the …

▪ Abstract A number of recent investigations suggest that cool white dwarfs are more
numerous than predicted by conventional Galactic models and that those stars make a …

The recently emerging conviction that thick disks are prevalent in disk galaxies, and their
seemingly ubiquitous old ages, means that the formation of the thick disk, perhaps more …

We present a detailed determination and analysis of 3D stellar mass distribution of the
Galactic disk for mono-age populations using a sample of 0.93 million main-sequence …

We determined the chemical and kinematic properties of the Galactic thin and thick disk
using a sample of 307,246 A/F/G/K-type giant stars from the LAMOST spectroscopic survey …

The K s-band differential star count of the Two Micron All Sky Survey (2MASS) is used to
derive the global structure parameters of the smooth components of the Milky Way. To avoid …

We estimated the Galactic model parameters for a set of 36 high-latitude fields included in
the currently available Data Release 5 (DR 5) of the Sloan Digital Sky Survey (SDSS), to …

We estimate the density laws of the Galactic stellar populations as a function of absolute
magnitude in a near-polar Galactic field. The density laws are determined by direct fitting to …

The kinematical properties of the Galactic thick disk are studied using absolute proper
motions from the Third Yale/San Juan Southern Proper Motion Catalog and Two Micron All …

Thick disks are faint and extended stellar components found around several disk galaxies
including our Milky Way. The Milky Way thick disk, the only one studied in detail, contains …