Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Viacheslav M. Sadykov"'
Autor:
Paul A. Kosovich, Alexander G. Kosovichev, Viacheslav M. Sadykov, Spiridon Kasapis, Irina N. Kitiashvili, Patrick M. O’Keefe, Aatiya Ali, Vincent Oria, Samuel Granovsky, Chun Jie Chong, Gelu M. Nita
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 169 (2024)
Solar flare prediction studies have been recently conducted with the use of Space-Weather MDI (Michelson Doppler Imager on board Solar and Heliospheric Observatory) Active Region Patches (SMARPs) and Space-Weather HMI (Helioseismic and Magnetic Image
Externí odkaz:
https://doaj.org/article/5d8aa954b8284a938fa5476f6d3c8342
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 163 (2024)
This study explores the behavior of machine-learning-based flare forecasting models deployed in a simulated operational environment. Using Georgia State University’s Space Weather Analytics for Solar Flares benchmark data set, we examine the impact
Externí odkaz:
https://doaj.org/article/acd57f1c3cd84864a6024ac4e75d0ec2
Autor:
Viacheslav M. Sadykov, John T. Stefan, Alexander G. Kosovichev, Andrey M. Stejko, Adam F. Kowalski, Joel C. Allred, Graham S. Kerr
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 80 (2023)
Solar Dynamics Observatory (SDO)/Helioseismic and Magnetic Imager (HMI) observations reveal a class of solar flares with substantial energy and momentum impacts in the photosphere, concurrent with white-light emission and helioseismic responses, know
Externí odkaz:
https://doaj.org/article/6c97d2938e2e4fe58982429810168522
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 160 (2023)
The first significant sunquake event of Solar Cycle 25 was observed during the X1.5 flare of 2022 May 10, by the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory. We perform a detailed spectro-polarimetric analysis of th
Externí odkaz:
https://doaj.org/article/398b0b3e59ed44ada12d489ed174ea92
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 104 (2023)
Spectral lines formed at lower atmospheric layers show peculiar profiles at the “leading edge” of ribbons during solar flares. In particular, increased absorption of the BBSO/GST He i λ 10830 line, as well as broad and centrally reversed profile
Externí odkaz:
https://doaj.org/article/046edb035a044fba813afdf1ee8c9347
Autor:
Arfa Mubashir, Xiaochun He, Ashwin Ashok, Anu G Bourgeois, Yang-Ting Chien, Megan Connors, Ernesto Potdevin, Petrus C Martens, Armin R Mikler, Unil G.U. Perera, Viacheslav M Sadykov, Murad Sarsour, Deepali Sharma, Chetan Tiwari
We present a comparison of the measured cosmic ray (CR) muon fluxes from two identical detectors at different geolocations and their sensitivity to space weather events in real time. The first detector is installed at Mount Wilson Observatory, CA, US
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c038e1e5b61475e2c1855d16d5f52cef
https://doi.org/10.22541/essoar.167751625.53623495/v1
https://doi.org/10.22541/essoar.167751625.53623495/v1
Spectral lines formed at lower atmospheric layers show peculiar profiles at the “leading edge” of ribbons during solar flares. In particular, increased absorption of the BBSO/GST He i λ10830 line, as well as broad and centrally reversed profiles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7979c0f886396195a50b9c8d04e3446f
http://arxiv.org/abs/2211.05333
http://arxiv.org/abs/2211.05333
Autor:
Yan Xu, Xu Yang, Graham S. Kerr, Vanessa Polito, Viacheslav M. Sadykov, Ju Jing, Wenda Cao, Haimin Wang
This study presents a C3.0 flare observed by the BBSO/GST and IRIS, on 2018-May-28 around 17:10 UT. The Near Infrared Imaging Spectropolarimeter (NIRIS) of GST was set to spectral imaging mode to scan five spectral positions at $\pm$ 0.8 \AA, $\pm$ 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::204aa1fb8c1abcce3d3e0c9908790c7c
http://arxiv.org/abs/2112.09949
http://arxiv.org/abs/2112.09949
Autor:
Irina N. Kitiashvili, Vincent Oria, Egor Illarionov, Alexander G. Kosovichev, Alberto Sainz Dalda, Viacheslav M. Sadykov
Publikováno v:
CBMI
In this study we extract the deep features and investigate the compression of the Mg II k spectral line profiles observed in quiet Sun regions by NASA's IRIS satellite. The data set of line profiles used for the analysis was obtained on April 20th, 2
Autor:
Alexander G. Kosovichev, Nagi N. Mansour, Alan A. Wray, Viacheslav M. Sadykov, Irina N. Kitiashvili
Publikováno v:
Proceedings of the International Astronomical Union. 15:346-350
The dynamics of solar magnetoconvection spans a wide range of spatial and temporal scales and extends from the interior to the corona. Using 3D radiative MHD simulations, we investigate the complex interactions that drive various phenomena observed o