Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Nagovitsyn, Yury A."'
The aim of this work is to create a long (410 years) series of average annual total sunspot areas AR - physically-based index of sunspot activity. We used telescopic observations of the AR index in 1832-1868 and 1875-2020, as well as the relationship
Externí odkaz:
http://arxiv.org/abs/2105.06519
Autor:
Velasco Herrera, Victor Manuel, Soon, Willie, Babynets, Nelya, Muraközy, Judit, Tlatov, Andrey G., Nagovitsyn, Yury A., Qiu, Shican, Švanda, Michal, Velasco Herrera, Policarpo Arol
Publikováno v:
In Advances in Space Research 1 March 2024 73(5):2788-2815
Publikováno v:
In Advances in Space Research August 2024
Early telescopic observations of sunspots were conducted with instruments of relatively small aperture. These instruments also suffered from a higher level of scattered light, and the human eye served as a "detector". The eye's ability to resolve sma
Externí odkaz:
http://arxiv.org/abs/1907.04932
Autor:
Pevtsov, Alexei A., Nandy, Dibyendu, Usoskin, Ilya, Pevtsov, Alexander A., Corti, Claudio, Lefèvre, Laure, Owens, Mathew, Li, Gang, Krivova, Natalie, Saha, Chitradeep, Perri, Barbara, Brun, Allan S., Strugarek, Antoine, Dayeh, Maher A., Nagovitsyn, Yury A., Erdélyi, Robertus
Publikováno v:
In Advances in Space Research August 2023
Autor:
Nagovitsyn, Yury1,2 (AUTHOR), Pevtsov, Alexei3 (AUTHOR), Osipova, Aleksandra1 (AUTHOR) osisasha@gmail.com
Publikováno v:
Solar Physics. Sep2023, Vol. 298 Issue 9, p1-15. 15p.
In 2015 the calculation of the International (Zurich) sunspot number was cancelled, and it was replaced by a new "recalibrated" series. A new data series was proposed also for the Group sunspot number. As a result, these two series which originally d
Externí odkaz:
http://arxiv.org/abs/1701.06165
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Using observations of sunspot magnetic field strengths (H) from the Crimean Astrophysical Observatory (CrAO) and area (S) of sunspots from the Kislovodsk Mountain Astronomical Station of Pulkovo Observatory, we investigate the changes in the relation
Externí odkaz:
http://arxiv.org/abs/1608.01132