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...
Three parameters for the horizontal-branch morphology in globular clusters
The horizontal branch (HB) morphology of globular clusters (GCs) is mainly described by metallicity. The fact that some clusters with almost the same...