9 papers
Analysis of polarized microwave emission of Flare-Productive Active Region 9415
V. M. Bogod, G. B. Gelfreikh, F. Ch. Drago +5
The results of the microwave observations of the Sun made with the RATAN-600 have shown the existence of many types of spectral peculiarities in polarized emission of active region…
Photometric study of radio galaxies in RATAN--600 "Cold" survey
O. V. Verkhodanov, Yu. N. Parijskij, N. S. Soboleva +4
About 100 steep spectrum radio sources from the RATAN--600 RC catalog were mapped by the VLA and identified with optical objects down to 24--25 in the R band using the 6 m…
Photometric study of fields of nearby pulsars with the 6m telescope
V. G. Kurt, V. N. Komarova, T. A. Fatkhullin +3
Fields of Geminga, PSR B0950+08, PSR J1908+0734 and PSR J0108-1431 have been observed within the program of optical investigation of nearby neutron stars carried out with the 6m te…
The dynamical evolution of the fragmented, bipolar dust shell around the carbon star IRC +10216: Rapid changes of a PPN-like structure?
R. Osterbart, Y. Balega, T. Bloecker +2
We present high-resolution J-, H-, and K-band observations and the first H-K color image of the carbon star IRC +10216. The images were reconstructed from 6m telescope speckle inte…
The dynamical evolution of the dust shell of IRC+10216
R. Osterbart, Y. Balega, T. Bloecker +2
We present high-resolution J-, H-, and K-band observations of the carbon star IRC+10216. The images were reconstructed from 6 m telescope speckle interferograms using the bispectru…
The rapidly evolving hypergiant IRC+10420: High-resolution bispectrum speckle-interferometry and dust-shell modelling
T. Bloecker, Y. Balega, K. -H. Hofmann +3
The hypergiant IRC+10420 is a unique object for the study of stellar evolution since it is the only object that is believed to be witnessed in its rapid transition from the red sup…