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## Observations of the solar eclipse of 04.01.2011 on two radio telescopes RT-32 (Svetloe and Zelenchuksky): the first results

Transactions of IAA RAS, issue 25, 154–169 (2012)

A. M. Finkelstein, I. A. Rahimov, A. A. Djakov, A. N. Korzhavin , N. A. Topchilo, M. L. Sveshnikov, N. G. Peterova. Observations of the solar eclipse of 04.01.2011 on two radio telescopes RT-32 (Svetloe and Zelenchuksky): the first results // Transactions of IAA RAS. — 2012. — Issue 25. — P. 154–169. @article{finkelstein2012, abstract = {Results are given for observations of three active areas NOAA 11140, 11141 and 11142, executed during the partial solar eclipse in January 4, 2011 from geographically spaced points on "Svetloe" near to St. Petersburg and "Zelenchuksky", in the North Caucasus. Methodically advantages of such observations consist in expected increase in accuracy of coordinate measurements (for case of a favorable arrangement of active area on the solar disk). Use completely steerable paraboloids of radio telescopes RT-32 of a network "Quasar-KVO" with a field of view, limiting the contribution of the quiet Sun, has led to increase of sensitivity and the effective discrimination of eclipsing observations. The eclipsing curves are presented in R and L channels on waves 3.5, 6.2 and 13 cm for the moments of I and IV contacts of occultation and the moments of a covering and opening of active areas (in all 14 curve pairs). The results of a primary treatment are presented also. The thin structure of radio images is revealed and the identification of separate details is made.}, author = {A.~M. Finkelstein and I.~A. Rahimov and A.~A. Djakov and A.~N. Korzhavin and N.~A. Topchilo and M.~L. Sveshnikov and N.~G. Peterova}, issue = {25}, journal = {Transactions of IAA RAS}, keyword = {radio telescope, solar eclipse, eclipsing curves, radio images, active areas}, pages = {154--169}, title = {Observations of the solar eclipse of 04.01.2011 on two radio telescopes RT-32 (Svetloe and Zelenchuksky): the first results}, url = {http://iaaras.ru/en/library/paper/890/}, year = {2012} } TY - JOUR TI - Observations of the solar eclipse of 04.01.2011 on two radio telescopes RT-32 (Svetloe and Zelenchuksky): the first results AU - Finkelstein, A. M. AU - Rahimov, I. A. AU - Djakov, A. A. AU - Korzhavin, A. N. AU - Topchilo, N. A. AU - Sveshnikov, M. L. AU - Peterova, N. G. PY - 2012 T2 - Transactions of IAA RAS IS - 25 SP - 154 AB - Results are given for observations of three active areas NOAA 11140, 11141 and 11142, executed during the partial solar eclipse in January 4, 2011 from geographically spaced points on "Svetloe" near to St. Petersburg and "Zelenchuksky", in the North Caucasus. Methodically advantages of such observations consist in expected increase in accuracy of coordinate measurements (for case of a favorable arrangement of active area on the solar disk). Use completely steerable paraboloids of radio telescopes RT-32 of a network "Quasar- KVO" with a field of view, limiting the contribution of the quiet Sun, has led to increase of sensitivity and the effective discrimination of eclipsing observations. The eclipsing curves are presented in R and L channels on waves 3.5, 6.2 and 13 cm for the moments of I and IV contacts of occultation and the moments of a covering and opening of active areas (in all 14 curve pairs). The results of a primary treatment are presented also. The thin structure of radio images is revealed and the identification of separate details is made. UR - http://iaaras.ru/en/library/paper/890/ ER -