... The Guide Star Catalog Version 1.2 . ... The Guide Star Catalog II (GSC-II), version 2.3.2 . ... The Tycho-2 Catalogue of the 2.5 Million Brightest Stars . ...
... the luminosity source, the star formation rate, the star formation efficiency and ... find that the star formation efficiency, defined as the current star formation rate ...
... The survey is centred on the 1-0S(1) ro-vibrational line of H2, a proven tracer of hot, dense molecular gas in star-forming regions, around evolved stars, and in supernova remnants. ...
... X-ray emission from stars has origins as diverse as the stars themselves: accretion shocks, shocks generated in wind-wind collisions, or release of magnetic energy. ...
... stars of iron abundance ranging between halo values,which give a baseline for the disk Li abundance,and 0.2 dex above solar.The upper envelope of these observations is taken to represent the locus of minimum stellar Li depletion,and thus to follow the ...
... appear enable us to see the flaring structure of the disks around Herbig Ae stars ... energy distribution (SED) of Herbig Ae stars, the constraints brought by images have ...
... A Catalog of almost 3900 variable stars . Pojmanski ; G . ... More than 140 000 stars in 50 Selected Fields covering 300 sq. degrees were ... Nightly monitoring over 100 standard stars confirms that most of our data remains ...
... The survey is centred on the 1-0S(1) ro-vibrational line of H2, a proven tracer of hot, dense molecular gas in star-forming regions, around evolved stars, and in supernova remnants. ...
... stars of luminosity classes IV, III, II, and Ib with spectral types G and K, we ... To date, this class of stars was reported only among giant stars of luminosity class ... gas in star-forming regions, around evolved stars, and in supernova remnants ...