Juan A. Belmonte

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– 2 – We report the detection of a transiting Jupiter-sized planet orbiting a relatively bright (V = 11.79) K0V star. We detected the transit light-curve signature in the course of the TrES multi-site transiting planet survey, and confirmed the planetary nature of the companion via multicolor photometry and precise radial velocity measurements. We designate(More)
We report on H-band ground-based observations of a transit of the hot Neptune GJ 436b. Once combined to achieve an equivalent sampling as archived observations taken with Spitzer, our measurements reach comparable precision levels. We analyze both sets of observations in a consistent way, and measure the rate of orbital inclination change to be of 0.02±0.04(More)
A case of rostrocaudal progression of adrenoleukodystrophy presented with hyperintense signal intensity bilaterally in the frontal lobe on MR images obtained with long repetition times and peripheral rim enhancement on postcontrast MR images obtained with short repetition times.
1 Some of the data presented herein were obtained at the W.M. Keck Observatory, which is operated as a scientific partnership among Caltech, the University of California, and NASA. The Observatory was made possible by the generous financial support of the W.M. Keck Foundation. – 2 – We announce the discovery of the second transiting hot Jupiter discovered(More)
The activities related to the preparation of the asteroseismic, photometric space mission COROT are described. Photoelectric observations, wide–field CCD photometry, uvbyβ calibrations and further time–series have been obtained at different observatories and telescopes. They have been planned to complete the COROT programme in the direction of the galactic(More)
We describe the discovery of a massive transiting hot Jupiter with a very short orbital period (1.30619 d), which we name TrES-3. From spectroscopy of the host star GSC 03089-00929, we measure T eff = 5720 ± 150 K, log g = 4.6 ± 0.3, and v sin i < 2 km s −1 , and derive a stellar mass of 0.90 ± 0.15 M ⊙. We estimate a planetary mass of 1.92 ± 0.23 M Jup ,(More)
Aims. The aim of this work is a detailed analysis of transit light curves from TrES-1 and TrES-2, obtained over a period of three to four years, in order to search for variabilities in observed mid-transit times and to set limits for the presence of additional third bodies. Methods. Using the IAC 80cm telescope, we observed transits of TrES-1 and TrES-2(More)
We report the discovery of TrES-4, a hot Jupiter that transits the star GSC 02620-00648 every 3.55 days. From high-resolution spectroscopy of the star, we estimate a stellar effective temperature of K, and T p 6100 ‫ע‬ 150 eff from high-precision z and B photometry of the transit we constrain the ratio of the semimajor axis a and the stellar radius to be.(More)
  • M Rabus, R Alonso, +6 authors G Mandushev
  • 2008
Aims. We investigate the origin of a flux increase found during a transit of TrES-1, observed with the HST. This feature in the HST light curve cannot be attributed to noise and is supposedly a dark area on the stellar surface of the host star eclipsed by TrES-1 during its transit. We investigate the likeliness of two possible hypothesis for its origin: A(More)
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