Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Javaraiah, J."'
Autor:
Javaraiah, J.
We analysed the combined data of sunspot groups from Greenwich Photoheliographic Results (GPR) during the period 1874-1976 and Debrecen Photoheliographic Data (DPD) during 1977-2017 and determined the monthly mean, annual mean, and 13-month smoothed
Externí odkaz:
http://arxiv.org/abs/2405.03441
Autor:
Javaraiah, J.
Study of the tilt angles of solar bipolar magnetic regions is important because the tilt angles have an important role in the solar dynamo. We analysed the data on tilt angles of sunspot groups measured at the Mt. Wilson Observatory (MWOB) during the
Externí odkaz:
http://arxiv.org/abs/2309.03650
Autor:
Javaraiah, J.
The maximum of a solar cycle contain two or more peaks, known as Gnevyshev peaks. Studies of this property of solar cycles may help for better understanding the solar dynamo mechanism. We analysed the 13-month smoothed monthly mean Version-2 internat
Externí odkaz:
http://arxiv.org/abs/2302.12615
Autor:
Javaraiah, J.
We analysed the sunspot group data from Greenwich Photoheliographic Results (GPR) during 1874-1976 and Debrecen Photoheliographic Data (DPD) during 1977-2017 and studied the cycle-to-cycle variations in the values of 13-month smoothed monthly mean su
Externí odkaz:
http://arxiv.org/abs/2202.13838
Autor:
Javaraiah, J.
We analyzed the combined 142 years sunspot-group data from Greenwich Photoheliograpic Results (GPR) and Debrecen Photoheliographic Data (DPD) and determined the yearly mean residual rotation rate and the meridional velocity of sunspot groups in diffe
Externí odkaz:
http://arxiv.org/abs/2109.09987
Autor:
Javaraiah, J.
We analyzed the daily sunspot-group data reported by the Greenwich Photoheliographic Results (GPR) during the period 1874-1976 and Debrecen Photoheligraphic Data (DPD) during the period 1977-2017, and the revised Version-2 of ISSN during the period 1
Externí odkaz:
http://arxiv.org/abs/2101.10126
The solar activity is asymmetric in both hemispheres in almost all cycles. This asymmetry is observed both in cycle amplitude and period. We have used about 90~years of sunspot-area data from the Kodaikanal Solar Observatory to study the North--South
Externí odkaz:
http://arxiv.org/abs/2012.10190
Autor:
Javaraiah, J.
We analyzed the sunspot-group daily data that were reported by Greenwich Photoheliogrphic Results (GPR) during the period 1874-1976 and Debrecen Photoheliographic Data (DPD) during the period 1977-2017. We determined the equatorial rotation rate [A]
Externí odkaz:
http://arxiv.org/abs/2012.01421
Autor:
Javaraiah, J.
The existence of ~12-year and ~51-year periodicities in the north-south asymmetry of solar activity is well known. However, the origin of these as well as the well-known relatively short periodicities in the north-south asymmetry is not yet clear. He
Externí odkaz:
http://arxiv.org/abs/2001.05879
Autor:
Javaraiah, J.
We analyzed the daily sunspot-group data reported by the Greenwich Photoheliographic Results (GPR) during the period 1874-1976 and Debrecen Photoheliographic Data (DPD) during the period 1977-2017 and studied North-South asymmetry in the maxima and m
Externí odkaz:
http://arxiv.org/abs/1904.11500