138 datasets found

Photographic spectra of Plaskett's Star (HR 2420, HD 47129, V640 Monocerotis) that were recorded at the Dominion Astrophysical Observatory have been digitized with a flatbed...

Modern spectroscopic surveys combined with Gaia distances are enabling reliable estimates of fundamental parameters for hundreds of Galactic O-type stars and the full range of...

We have used COSMOS scans of photographic plates taken by the Palomar Oschin Schmidt telescope (as part of the original Palomar Sky Survey) and by the UK Schmidt telescope to...

We present an all-sky catalog of absolute positions and estimates of correlated flux density of 21942 compact radio sources determined from processing interferometric visibility...

The Calan-ESO Proper-Motion Catalog (CE Catalog) contains 542 stars with proper motions >=0.2"/yr, identified in 14 ESO areas in the southern hemisphere. Proper motions were...

A magnitude-limited photographic survey of relative proper-motion components and B, V photometry of 1.3x10^6^ stars brighter than apparent B magnitude 14.5+/-0.5 in the fourth...

Proper motion stars have been identified from red IIIaF ESO Schmidt plates. This catalogue includes stars found in ESO Areas 207, 439, and 440 having mu >= 0.1 arcsec/yr....

We have developed a procedure (so called PAPA) for measurement of magnitudes (about 0.1mag accurate) and positions (with accuracy better than 0.5arcsec) of all the objects...

The paper contains 515 individual corrections {DELTA}{alpha} and 235 corrections {DELTA}{delta} to FK5 and FK5Supp. stars and 50 corrections to their proper motions computed...

Supernova feedback injects energy and turbulence into the interstellar medium (ISM) in galaxies, influences the process of star formation and is essential to understanding the...

We present the third data release (DR3) of the X-shooter Spectral Library (XSL). This moderate-high resolution near-UV to near-IR (350-2480nm, R~10000) spectral library is...

Atmospheric escape is an important factor shaping the exoplanet population and hence drives our understanding of planet formation. Atmospheric escape from giant planets is...

We present the second data release (DR2) of the X-Shooter Spectral Library (XSL), which contains all the spectra obtained over the six semesters of that program. This release...

We present the result of our Allan standard deviation based classification according to their astrometric stability. The classification is divided into three categories (stable...

Most stars born in clusters and recent results suggest that star formation (SF) preferentially occurs in subclusters. Studying the morphology and SF history of young clusters is...

Chromospheric activity monitoring of a wide range of cool stars can provide valuable information on stellar magnetic activity and its dependence on fundamental stellar...

Galaxy groups and clusters are the main tools to test cosmological models and to study the environmental effect of galaxy formation. This work aims to provide a catalogue of...

We improve the widely used friends-of-friends (FoF) group finding algorithm with membership refinement procedures and apply the method to a combined dataset of galaxies in the...

We present the first release of XSL, the X-Shooter Spectral Library observed at the European Southern Observatory (ESO). This release contains 237 stars spanning the wavelengths...

The definition, construction and realization of a reference system is one of the oldest and most fundamental tasks of astronomy. Currently, the ICRS (International Celestial...