The detailed study of the different structural components of nearby galaxies can supply vital information about the secular, or internal, evolution of these...
Thick Disks seen in the Spitzer Survey of Stellar Structure in Galaxies
Most, if not all, disk galaxies have a thin (classical) disk and a thick disk. In most models thick disks are thought to be a necessary consequence of the disk...
Three Dimensional Structure of Penumbral Filaments from Hinode Observations
We analyze spectropolarimetric observations of the penumbra of the NOAA AR 10953 at high spatial resolution (0.3 ″ ). The full Stokes profiles of the Fe i lines...
Three eclipsing white dwarf plus main sequence binaries from SDSS
We identify SDSS 0110+1326, SDSS 0303+0054 and SDSS 1435+3733 as three eclipsing white dwarf plus main sequence binaries from the Sloan Digital Sky Survey, and...
The MASTER auto-detection system at Tunka (Baykal Lake) detected a new transient source at the position (R.A., Dec) = 17h 29m 00.07s , +75d 18m 42s.5, (J2000)...
Three New Black Hole Transients in M31 and the Implications for the Orbital Period Distribution
Our neighbouring galaxy M31 (Andromeda), located 780 kpc away, offers a unique opportunity to study the X-ray population of a galaxy similar to the Milky Way...
Three new long-period CVs from the Hamburg Quasar Survey
We present time-resolved optical spectroscopy and photometry of three new relatively bright (V˜14.0-15.5) long-period cataclysmic variables discovered in the...