We characterized the broad-band X-ray spectra of Swift J1745-26 during the decay of the 2013 outburst using INTEGRAL ISGRI, JEM-X and Swift XRT. The X-ray evolution is compared to the evolution in optical and radio. We fit the X-ray spectra with phenomenological and Comptonization models. We discuss possible scenarios for the physical origin of an

We present multiwavelength monitoring of the Galactic microquasar GRS1915+105 in the infrared, X-ray, and radio bands using observations from the Whipple Observatory 1.2-m, Lowell Observatory 1.8-m, Palomar 5-m, and the United Kingdom Infrared telescopes, the Rossi X-ray Timing Explorer All-Sky Monitor, and the Green Bank Interferometer during May

The unprecedented spatial resolution of Chandra is allowing reliable identifications of the counterparts of M31 X-ray sources at other wavelengths. Comparisons with Hubble Space Telescope data, recent ground-based Local Group Survey data, and Very Large Array radio data reveal many interesting objects. These include newly-resolved X-ray/optical

We have studied in detail the properties of local active star-forming galaxies from the UCM survey, and in particular their star-formation histories. We have quantified the relative importance of the current episode of star formation in comparison to the underlying older stellar populations. We have also determined the total stellar mass function

We use data from the Multi-Unit Spectroscopic Explorer (MUSE), recently commissioned at the Very Large Telescope (VLT), to study the kinematics and stellar population content of NGC 4371, an early-type massive barred galaxy in the core of the Virgo cluster. We integrate this study with a detailed structural analysis using imaging data from the

We present simultaneous and continuous observations of H_alpha, H_beta, NaI D_1, D_2 and HeI D_3 lines of the chromospherically active binary HR 1099. We have observed HR 1099 for more than 3 weeks almost continuously and monitored two flares. An increase in H_alpha, CaII H & K, H_beta, HeI D_3 and HeI lambda6678 and a strong filling-in of the NaI