Large segmented mirrors require efficient co-phasing techniques in order to avoid the image degradation due to segments misalignment. For this purpose in the...

Since the discovery in 1995 of the first extrasolar planet candidate around a solar type star using the radial velocity method, to date (beginning of 2005), 135...

We report on our continuing effort to identify extremely low-mass members of the cluster around the hot star sigma Orionis. Using the KeckI telescope in Hawaii...

We use ultra-deep imaging from the IAC Stripe82 Legacy Project to study the surface photometry of 22 nearby, face-on to moderately inclined spiral galaxies. The...

We use ultra-deep imaging from the IAC Stripe 82 Legacy Project to study the surface photometry of 22 nearby, face-on to moderately inclined spiral galaxies...

The determination of accurate masses from the study of binary orbits requires a combination of complementary observing techniques. In this respect, of...

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This is a proposal for 98 hours of NIRSPEC/PRISM observations of 59 trans-Neptunian objects and Centaurs (hereafter, TNOs). Our targets cover a diverse range of...