367 datasets found

We have started a large survey for radial velocity variations in white dwarfs (PI R. Napiwotzki) with the aim of finding close double degenerates, which could be precursor...

We carried out a period analysis on ~3700 RR Lyrae stars on two Schmidt fields centred on (l, b)=(3.1{deg}, -77.1{deg}) and (6.6{deg}, -10.8{deg}) respectively, covering an area...

At the Engelhardt Astronomical Observatory (EAO), we observed photographic positions of 113 Galactic Radio Sources (GRS) in the system PPM catalogue (Rizvanov & Dautov,...

File table1 contains equatorial coordinates for 36 newly identified variables from the central field of the globular cluster M22. File table2 contains basic photometric data for...

We present an original way to detect variable stars in the Tycho photometric observations. A modified Kolmogorov-Smirnov statistical test has been constructed, based on a model...

Table 10 is the full version of Table A1 given in Appendix. There are 441 entries corresponding to 441 spectral energy distributions (SEDs) of 406 carbon stars and related...

The data known as the Hipparcos Photometry obtained with the Hipparcos satellite have been investigated to find those stars which are least variable. Such stars are excellent...

We present a study of the X-ray emission from binary systems extracted from the Lindroos catalogue (Lindroos, 1986A&A...156..223L) based on the ROSAT All-Sky survey as well...

We carried out a search for RR Lyrae stars towards the Sagittarius dwarf galaxy based on two series of photographic Schmidt plates. This search yielded 4013 RR Lyrae stars (3947...

Data of figure 1 of the paper, namely the luminosity function of globular clusters in bolometric magnitude. The original HST magnitude is given, then the corresponding...

The physical properties of W UMa binary systems are revisited on the basis of the observational data published in the last decade and of the recent theoretical studies on...

We present the results of the classification procedure described in Piquard's PhD thesis applied to the 1091 stars presented in Piquard et al. (2001. Cat. ). In those six tables...

We compiled a catalog of 421 references 12-15mag stars for determining accurate positions of objects in the region of M 31. We also compiled a star chart, which is provided as...

We report on a complete set of early optical afterglows of gamma-ray bursts (GRBs) obtained with the Robotic Optical Transient Search Experiment (ROTSE-III) telescope network...

The NASA Orbital Debris Observatory (NODO) astronomical survey uses a transit 3m liquid mirror telescope to observe a strip of sky in 20 narrowband filters. In this article, we...

We present infrared K-band photometry of complete samples of VLM candidates constructed from IIIaF and IVN plates in 10 fields taken as part of the POSSII and UKSRC surveys....

Historical star magnitudes from catalogues by Ptolemy (137 AD), al-Sufi (964) and Tycho Brahe (1602/27) are converted to the Johnson V-mag scale and compared to modern day...

In this paper we report the current status of a new research program. The primary goal of the "Vanishing and Appearing Sources during a Century of Observations" project is to...

A search for preferential galaxy alignments in the Pisces-Perseus Supercluster (PPS) is made using the Minnesota Automated Plate Scanner Pisces-Perseus Survey (MAPS-PP). The...

The astrometry of 16 radio stars taken from the list of Wendker (1995, Cat. ) is presented. The observations were carried out between 1996.3 and 1998.8 at the Valinhos CCD...