The Department of Detectors of the Instituto de Astrofisica de Canarias, Spain is developing a data acquisition system (DAS) for an infrared camera based in a...

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A grid of evolutionary synthesis models for different scenarios (initial mass function slope, metallicity, age, etc.) and computing a set of observables in a...

We report simultaneous X-ray, optical, and radio observations of V404 Cyg in quiescence. The X-ray flux varied dramatically by a factor of >20 during a 60 ks...

We describe the results of an ongoing survey of X-ray selected symbiotics in the Galactic bulge, begun with the Galactic Bulge Survey and now extended to the...

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Comet 67P, the target of Rosetta mission, was observed in the visible and near-IR spectral regions during its perihelion approach. The observations were...

We report CGRO, RXTE, ASCA, ROSAT, IUE, HST and ground-based observations of a large flare in 3C 279 in February 1996. X-rays and γ-rays peaked simultaneously...

We present multiwavelength monitoring of the Galactic microquasar GRS1915+105 in the infrared, X-ray, and radio bands using observations from the Whipple...