Properties of the Warm Star Sample from SDSS-Data Release 4
The warm star sample (7000 Teff 10,000 K) in SDSS is comprised of field horizontal branch (FHB) stars and a large number of blue straggler (BS) stars. Because...
Properties of the Young Embedded Cluster G287.47-0.54 = Tr14-N4 in NGC 3372
New deep broad- and narrow-band (JHK and Br Gamma at 2.17 μm and H2 at 2.12 μm) images of the mid-infrared source G287.47-0.54 (Tr14-N4) are presented and...
Proposal and comparative study of a reducing algorithm for image sharpening techniques.
Image sharpening techniques applied to medium size telescopes (approximately 1 m) can improve their resolution by double. A new algorithm for recentering and...
We present an overview of the life-cycle of the observing proposals to the GTC and the software tools designed to help the astronomers to create and submit...
Prospects for brown dwarf and extrasolar planet research with the GTC and the LMT
The topic of brown dwarf and extrasolar planet research with the GTC and the LMT was discussed during a half day workshop at Universidad Nacional Autonoma de...
Prospects for the detection of planets around very low-mass primaries
Progress in the understanding of very low-mass stars and brown dwarfs has developed at a fast pace in the last decade. Several pieces of evidence indicate that...