Siberian Radioheliograph: first results
Author:
Лесовой Сергей1, Lesovoi Sergey2, Алтынцев Александр1, Altyntsev Alexander2, Кочанов Алексей13, Kochanov Aleksey24, Гречнев Виктор1, Grechnev Victor2, Губин Алексей1, Gubin Aleksey2, Жданов Дмитрий1, Zhdanov Dmitriy2, Иванов Евгений1, Ivanov Evgeniy2, Уралов Аркадий1, Uralov Arkadiy2, Кашапова Лариса13, Kashapova Larisa24, Кузнецов Алексей1, Kuznetsov Aleksey2, Мешалкина Наталия1, Meshalkina Nataliya2, Сыч Роберт1, Sych Robert2
Affiliation:
1. Институт солнечно-земной физики СО РАН 2. Institute of Solar Terrestrial Physics SB RAS 3. Иркутский государственный университет 4. Irkutsk State University
Abstract
Regular observations of active processes in the solar atmosphere have been started using the first stage of the multiwave Siberian Radioheliograph (SRH), a T-shaped 48-antenna array with a 4–8 GHz operating frequency range and a 10 MHz instantaneous receiving band. Antennas are set on the central antenna posts of the Siberian Solar Radio Telescope. The maximum baseline is 107.4 m, and the angular resolution is up to 70ʹʹ. We present examples of observations of the solar disk at different frequencies, “negative” bursts, and solar flares. The sensitivity to compact sources reaches 0.01 solar flux units (≈10^{-4} of the total solar flux) with an accumulation time of 0.3 s. The high sensitivity of the SRH enables monitoring of solar activity and allows one to study active processes from characteristics of their microwave emission, including faint events, which could not be detected previously.
Publisher
Infra-M Academic Publishing House
Subject
Space and Planetary Science,Atmospheric Science,Geophysics
Reference34 articles.
1. Алтынцев А.Т., Кашапова Л.К. Введение в радиоастрономию Солнца. Иркутск: Изд. ИГУ, 2014. 203 c., Alissandrakis C.E., Kochanov A.A., Patsourakos S., Altyntsev A.T., Lesovoi S.V., Lesovaya N.N. Microwave and EUV Observations of an Erupting Filament and Associated Flare and Coronal Mass Ejections. Publications of the Astronomical Society of Japan. 2013, vol. 65, no. SP1, article id. S8, 10 p. 2. Лесовой С.В., Кобец В.С. Корреляционные кривые Сибирского радиогелиографа // Солнечно-земная физика 2017. Т. 3, № 1. С. 17–21, Altyntsev A.T., Kashapova L.K. Vvedenie v radioastronomiyu Solntsa [Introduction to Solar Radio Astronomy]. Irkutsk, IGU Publ., 2014. 203 p. (In Russian). 3. Alissandrakis C.E., Kochanov A.A., Patsourakos S., Altyntsev A.T., Lesovoi S.V., Lesovaya N.N. Microwave and EUV observations of an erupting filament and associated flare and coronal mass ejections // Publications of the Astronomical Society of Japan. 2013. V. 65, N SP1, article id. S8, 10 pp., Altyntsev A., Meshalkina N., Meszarosova, H., Karlicky M., Palshin V., Lesovoi S. Sources of quasi-periodic pulses in the flare of 18 August 2012. Solar Phys. 2016, vol. 291, iss. 2, pp. 445–463. 4. Altyntsev A., Meshalkina N., Meszarosova, H., Karlicky M., Palshin V., Lesovoi S. Sources of quasi-periodic pulses in the flare of 18 August 2012 // Solar Phys. 2016. V. 291, iss. 2, P. 445–463., Bastian T.S., Gary D.E., White S.M., Hurford G.J. Toward a frequency-agile solar radiotele-scope. 18 NSO/Sacramento Peak Summer Workshop “Synoptic Solar Physics”. Sunspot, New Mexico 8–12 September 1997, p. 563 (ASP Conference Series. 1998, vol. 140). 5. Bastian T.S., Gary D.E., White S.M., Hurford G.J. Toward a frequency-agile solar radiotelescope // 18 NSO/Sacramento Peak Summer Workshop “Synoptic Solar Physics”. Sunspot, New Mexico 8–12 September 1997. P. 563 (ASP Conference Series. 1998. V. 140). , Bogod V.M., 2011, RATAN-600 radio telescope in the 24th solar-activity cycle. I. New opportunities and tasks. Astrophys. Bull. 2011, vol. 66, iss. 2, pp. 190–204.
Cited by
30 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|