Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Meshalkina, N."'
Autor:
Meshalkina N. S., Altyntsev A. T.
Publikováno v:
Solar-Terrestrial Physics, Vol 10, Iss 3, Pp 11-17 (2024)
Analysis of GOES data for the SOL2012-06-29T04:09 flare, class C4.6, shows a thermal character of the energy release for several minutes before the impulsive stage. Plasma heating to temperatures above 10 MK leads to the appearance of plasma jets alo
Externí odkaz:
https://doaj.org/article/e2b2de41da5543248c6e10524d7dc727
Publikováno v:
Solar-Terrestrial Physics, Vol 10, Iss 3, Pp 3-10 (2024)
Multi-wavelength observations of a coronal hole (CH) with two-dimensional spatial resolution have been made for the first time in the frequency range from 2.8 to 12 GHz. At frequencies below 6 GHz, the average brightness of the hole is 1.5 times lowe
Externí odkaz:
https://doaj.org/article/1eedbcecc60841ac87d6cd97b5acec73
Autor:
Meshalkina N. S., Altyntsev A. T.
Publikováno v:
Solar-Terrestrial Physics, Vol 9, Iss 4, Pp 17-24 (2023)
A distinctive feature of the September 6, 2012 event was that sources of narrow-band (2–4 GHz) sub-second pulses (SSP) were observed in small areas of flare loops with so-called bright ultraviolet knots with high plasma density up to 1011 10¹¹ cm
Externí odkaz:
https://doaj.org/article/52a13dd507ef491f80d0c9c8b24f2790
Publikováno v:
Solar-Terrestrial Physics, Vol 9, Iss 3, Pp 102-111 (2023)
Radio observations of weak events are one of the promising methods for studying energy release and non-thermal processes in the solar corona. The development of instrumental capabilities allows for radio observations of weak transient coronal events,
Externí odkaz:
https://doaj.org/article/2d5dbbb901f243dfa4fff6a2775753bf
Publikováno v:
Solar-Terrestrial Physics, Vol 9, Iss 2, Pp 71-77 (2023)
We discuss results of test observations of the 3–6 GHz range array of the Siberian Radio Heliograph (SRH). A method for calibrating brightness temperatures of images was verified using measurements of the brightness temperature of the quiet Sun at
Externí odkaz:
https://doaj.org/article/e7793d23d8e547e598bebc49a3eb0bfd
Autor:
Grechnev, V. V., Meshalkina, N. S., Uralov, A. M., Kochanov, A. A., Lesovoi, S. V., Myshyakov, I. I., Kiselev, V. I., Zhdanov, D. A., Altyntsev, A. T., Globa, M. V.
Publikováno v:
Solar Physics, 295(2020), 128
On 23 July 2016 after 05:00\,UTC, the first 48-antenna stage of the Siberian Radioheliograph detected two flares of M7.6 and M5.5 GOES importance that occurred within half an hour in the same active region. Their multi-instrument analysis reveals the
Externí odkaz:
http://arxiv.org/abs/2009.10350
Akademický článek
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We present the study of SOL2015-03-15 M1.2 flare, revealing acceleration of electrons and plasma heating in the sheared twisted magnetic structure in the polarity inversion line (PIL). The scope is to make the analysis of nonthermal electrons dynamic
Externí odkaz:
http://arxiv.org/abs/1805.05792
Publikováno v:
Solar-Terrestrial Physics, Vol 8, Iss 2, Pp 3-9 (2022)
A response has been found in a narrow band 5–7 GHz of microwave emission to the appearance of a coronal X-ray point. The emission source is a short X-ray loop located in the tail part of an active region and occurring when magnetic fields are recon
Externí odkaz:
https://doaj.org/article/882e7e7c094b496d9c19455f4302d516
Publikováno v:
Solar Physics, 2017, Volume 292, Issue 9, article id. #137, 13 pp
The new generations of multiwavelength radioheliographs with high spatial resolution will employ microwave imaging spectropolarimetry to recover flare topology and plasma parameters in the flare sources and along the wave propagation paths. The recor
Externí odkaz:
http://arxiv.org/abs/1709.06252