Siberian Radioheliograph: first results
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 mounted on the centra...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
INFRA-M
2017-03-01
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| Series: | Solar-Terrestrial Physics |
| Subjects: | |
| Online Access: | https://naukaru.ru/en/nauka/article/16396/view |
| _version_ | 1818235665130717184 |
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| author | Lesovoi S.V. Altyntsev А.Т. Kochanov A.A. Grechnev V.V. Gubin А.V. Zhdanov D.A. Ivanov E.F. Uralov A.M. Kashapova L.K. Kuznetsov А.А. Meshalkina N.S. Sych R.A. |
| author_facet | Lesovoi S.V. Altyntsev А.Т. Kochanov A.A. Grechnev V.V. Gubin А.V. Zhdanov D.A. Ivanov E.F. Uralov A.M. Kashapova L.K. Kuznetsov А.А. Meshalkina N.S. Sych R.A. |
| author_sort | Lesovoi S.V. |
| collection | DOAJ |
| description | 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 mounted 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 70. 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 about 0.3 s. The high sensitivity of SRH enables monitoring of solar activity and allows studying active processes from characteristics of their microwave emission, including faint events, which could not be detected previously. |
| first_indexed | 2024-12-12T11:57:34Z |
| format | Article |
| id | doaj.art-79b9a080998e405a881837143a964e28 |
| institution | Directory Open Access Journal |
| issn | 2500-0535 |
| language | English |
| last_indexed | 2024-12-12T11:57:34Z |
| publishDate | 2017-03-01 |
| publisher | INFRA-M |
| record_format | Article |
| series | Solar-Terrestrial Physics |
| spelling | doaj.art-79b9a080998e405a881837143a964e282022-12-22T00:25:11ZengINFRA-MSolar-Terrestrial Physics2500-05352017-03-013131810.12737/article_58f96ec60fec52.86165286Siberian Radioheliograph: first resultsLesovoi S.V.0Altyntsev А.Т.1Kochanov A.A.2Grechnev V.V.3Gubin А.V.4Zhdanov D.A.5Ivanov E.F.6Uralov A.M.7Kashapova L.K.8Kuznetsov А.А.9Meshalkina N.S.10Sych R.A. 11Institute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, Russia; Irkutsk State University, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, Russia; Irkutsk State University, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaInstitute of Solar-Terrestrial Physics SB RAS, Irkutsk, RussiaRegular 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 mounted 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 70. 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 about 0.3 s. The high sensitivity of SRH enables monitoring of solar activity and allows studying active processes from characteristics of their microwave emission, including faint events, which could not be detected previously.https://naukaru.ru/en/nauka/article/16396/viewSunRadio emissionSolar flaresRadio telescopes Negative burstsRadio telescopesNegative bursts |
| spellingShingle | Lesovoi S.V. Altyntsev А.Т. Kochanov A.A. Grechnev V.V. Gubin А.V. Zhdanov D.A. Ivanov E.F. Uralov A.M. Kashapova L.K. Kuznetsov А.А. Meshalkina N.S. Sych R.A. Siberian Radioheliograph: first results Solar-Terrestrial Physics Sun Radio emission Solar flares Radio telescopes Negative bursts Radio telescopes Negative bursts |
| title | Siberian Radioheliograph: first results |
| title_full | Siberian Radioheliograph: first results |
| title_fullStr | Siberian Radioheliograph: first results |
| title_full_unstemmed | Siberian Radioheliograph: first results |
| title_short | Siberian Radioheliograph: first results |
| title_sort | siberian radioheliograph first results |
| topic | Sun Radio emission Solar flares Radio telescopes Negative bursts Radio telescopes Negative bursts |
| url | https://naukaru.ru/en/nauka/article/16396/view |
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