China joined SONG in 2009, by contributing a full SONG node. The site is located on the north-eastern part of Qinghai-Tibet plateau. In order to realize the...

Elliptical and lenticular galaxies are often thought of as ‘red and dead’. However, hierarchical mergers are likely to leave traces of the process of galaxy...

X-ray observations performed by several missions during the last few decades have provided a very large data base on black hole X-ray binaries. Many of these...

We present the completion of a program to cross-correlate the SDSS Data Release 1 and 2MASS Point Source Catalog in search for extremely red L and T dwarfs. The...

The success of the next generation of instruments for 8 to 40-m class telescopes will depend on the ability of Adaptive Optics (AO) systems to provide excellent...

Thick discs are disc-like components with a scale height larger than that of the classical discs. They are most easily detected in close to edge-on galaxies in...

The faint glow produced by the stripped stars of the galaxies within clusters is shown to follow the dark matter distribution with extreme accuracy. In this...

Transmission spectroscopy has been a powerful tool to decipher the atmospheric compositions of transiting exoplanets. The recent HST survey has shown that...

A discussion of the first observation ever of gravitational waves. Present detectors, future detectors, and the perspectives for gravitational wave astronomy.