S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
RadioAstron Space VLBI mission: current status, early science results, AO-1
Y. Y. Kovalev
Astro Space Center, Lebedev Physical Institute, Moscou, Rússia
Seminari del departament d'Astronomia i Astrofísica
Dilluns 05 novembre 2012
The 10-meter space radio telescope Spektr-R was successfully launched on July 18, 2011, and unfurled several days later. The space element of the ground-space VLB interferometer RadioAstron covers four frequency bands from 0.3 to 25 GHz and provides baselines up to 350,000 km. This will allow to study space objects with a resolution as high as about 10 microarcsecond. In-orbit tests of the space craft are finished, first fringes are found at all four bands of 92, 18, 6, and 1.3 cm. Current status of the mission and plans to move to the open sky phase by 2013 will be discussed. Science objectives and first results of the RadioAstron early science program will be presented.