Zobrazeno 1 - 10
of 1 301
pro vyhledávání: '"Fujiki K"'
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 1 (2023)
The origin of nonradial solar wind flows and their effect on space weather are poorly understood. Here we present a detailed investigation of 12 nonradial solar wind events during solar cycles 23–24, covering the period 1995–2017. In all these ev
Externí odkaz:
https://doaj.org/article/207cc5fb7ded4338a9a3080b83edcb8b
Autor:
Bisoi, Susanta Kumar, Rout, Diptiranjan, Janardhan, P., Fujiki, K., Chakrabarty, Dibyendu, Sahu, Karan
We present a study of three highly non-radial solar wind events when the azimuthal solar wind flow angle exceeds > 6 degrees for one day or more. None of the events are associated with coronal mass ejections and co-rotating interaction regions observ
Externí odkaz:
http://arxiv.org/abs/2401.10863
Autor:
Jackson, B.V., Tokumaru, M., Fallows, R.A., Bisi, M.M., Fujiki, K., Chashei, I., Tyul'bashev, S., Chang, O., Barnes, D., Buffington, A., Cota, L., Bracamontes, M.
Publikováno v:
In Advances in Space Research 15 December 2023 72(12):5341-5360
Autor:
Raja, K. Sasikumar, Janardhan, P., Bisoi, Susanta Kumar, Ingale, Madhusudan, Subramanian, Prasad, Fujiki, K., Maksimovic, Milan
The extended minimum of Solar Cycle 23, the extremely quiet solar-wind conditions prevailing, and the mini-maximum of Solar Cycle 24 drew global attention and many authors have since attempted to predict the amplitude of the upcoming Solar Cycle 25,
Externí odkaz:
http://arxiv.org/abs/1908.09134
Publikováno v:
A&A 618, A148 (2018)
Aims: To investigate solar polar fields during cycle 24, using measurements of solar magnetic fields in the latitude range 55 - 90 degree and 78 - 90 degree, to report a prolonged and unusual hemispheric asymmetry in the polar field reversal pattern
Externí odkaz:
http://arxiv.org/abs/1805.06654
The location of the terrestrial magnetopause (MP) and it's subsolar stand-off distance depends not only on the solar wind dynamic pressure and the interplanetary magnetic field (IMF), both of which play a crucial role in determining it's shape, but a
Externí odkaz:
http://arxiv.org/abs/1709.01407
Autor:
Bisoi, Susanta Kumar, Chakrabarty, D., Janardhan, P., Rastogi, R. G., Yoshikawa, A., Fujiki, K., Tokumaru, M., Yan, Y.
A detailed investigation was carried out to understand a prolonged (~44 hours) weakly southward interplanetary magnetic field (IMF-Bz) condition during May 02--04, 1998. In-situ observations, during the period, showed the passage of an expanding magn
Externí odkaz:
http://arxiv.org/abs/1604.04959
Autor:
Janardhan, P., Bisoi, Susanta Kumar, Ananthakrishnan, S., Tokumaru, M., Fujiki, K., Jose, L., Sridharan, R.
We report observations of a steady 20 year decline of solar photospheric fields at latitudes $\geq$45${^{o}}$ starting from $\sim$1995. This prolonged and continuing decline, combined with the fact that Cycle 24 is already past its peak, implies that
Externí odkaz:
http://arxiv.org/abs/1506.03589
Autor:
Bisoi, Susanta Kumar, Janardhan, P., Ingale, M., Subramanian, P., Ananthakrishnan, S., Tokumaru, M., Fujiki, K.
The ratio of the rms electron density fluctuations to the background density in the solar wind (density modulation index, $\epsilon_{N} \equiv \Delta{N}/N$) is of vital importance in understanding several problems in heliospheric physics related to s
Externí odkaz:
http://arxiv.org/abs/1408.4199
Publikováno v:
Solar Phys. 289 (2014) 2157--2175
We report kinematic properties of slow interplanetary coronal mass ejections (ICMEs) identified by SOHO/LASCO, interplanetary scintillation, and in-situ observations, and propose a modified equation for the ICME motion. We identify seven ICMEs betwee
Externí odkaz:
http://arxiv.org/abs/1401.1724