We have performed a detailed oxygen abundance analysis of 23 metal-poor (-3.0 [Fe/H] -0.3) unevolved halo stars and one giant through the OH bands in the near...

We present follow-up spectroscopy to 12 candidate white dwarf-brown dwarf binaries. We have confirmed that 8 objects do indeed have a white dwarf primary (7 DA...

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Contents: Vol. I: The Sun and solar-like stars. Stellar structure and evolution. Astronomical instrumentation. General lectures. Vol. II: Structure and...

Papers are presented on stellar structure and evolution. Particular attention is given to the deep CCD photometry of stars in the globular cluster M3; dynamical...

Recent observational and theoretical investigations of the sun and sunlike stars and of galactic structure and evolution are discussed in reviews and reports...

Topics discussed in this issue include active galaxies and cosmology, interstellar and intergalactic medium, and astronomical instrumentation. Papers are...

We report the discovery of a new X-ray source detected in a 5ks observation starting on 2007-02-14.08 UT as part of our ongoing Chandra/HST M31 transient...

We report the discovery of a previously unseen X-ray point source detected in a 5ks observation starting on 2007-07-05.54 UT as part of our ongoing Chandra/HST...