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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.34 no.s2 (2007), pp. 196-200
RAPS - Radio Astronomy Projects in Sofia
L. Ilchev1, I. Parov1,2, B. Deshev1,2, Ts. Georgiev1, P. Nedialkov1
1Institute of Astronomy, Bulgarian Academy of Sciences, 72 Tsarigradsko Shosse Blvd., 1784 Sofia, Bulgaria
2Department of Astronomy, Faculty of Physics, University of Sofia, 5 J. Bourchier Blvd., 1126 Sofia, Bulgaria
go back1Institute of Astronomy, Bulgarian Academy of Sciences, 72 Tsarigradsko Shosse Blvd., 1784 Sofia, Bulgaria
2Department of Astronomy, Faculty of Physics, University of Sofia, 5 J. Bourchier Blvd., 1126 Sofia, Bulgaria
Abstract. In 2005 the RAPS team began development of low budgetary radiotelescopes for monitoring of solar activity and processes in the system "solar wind -- earth magnetosphere" in order to improve the development of radioastronomy instrumentation, international cooperation and education in Radioastronomy in Bulgaria. We present the current state of our activities and first observations of radio emission at X band (8-12 GHz) from the Sun; from Crab nebula, obtained with 1.5 m parabolic antenna plus commercial satellite detector. Also extremely low frequency (ELF) radio signals at 2 Hz, observed with horizontal ferrite antenna and a low frequency radio detector are shown.