Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Zharkova, V. V."'
We attempt to establish links between a summary curve, or modulus summary curve, MSC, of the solar background magnetic field (SBMF) derived from Principal Component Analysis, with the averaged sunspot numbers (SSN). The comparison of MSC with the who
Externí odkaz:
http://arxiv.org/abs/2207.14708
Recently discovered long-term oscillations of the solar background magnetic field associated with double dynamo waves generated in inner and outer layers of the Sun indicate that the solar activity is heading in the next three decades (2019-2055) to
Externí odkaz:
http://arxiv.org/abs/2002.06550
Using a summary curve of two eigen vectors of solar magnetic field oscillations derived with Principal Components Analysis (PCA) from synoptic maps for solar cycles 21-24 as a proxy of solar activity, we extrapolate this curve backwards three millenn
Externí odkaz:
http://arxiv.org/abs/1705.04482
We present results of our preliminary analysis of acoustically active X-class flare of September 7, 2011. We report two acoustic sources detected via acoustic holography and verified by finding a ridge in time-distance diagrams. We compare the direct
Externí odkaz:
http://arxiv.org/abs/1304.5805
The first near-side X-class flare of the Solar Cycle 24 occurred in February 2011 and produced a very strong seismic response in the photosphere. One sunquake was reported by Kosovichev (2011) followed by the discovery of a second sunquake by Zharkov
Externí odkaz:
http://arxiv.org/abs/1208.4284
We present an analysis of the 15 February 2011 X-class solar flare, previously reported to produce the first sunquake in solar cycle 24 (Kosovichev 2011). Using acoustic holography, we confirm the first, and report a second, weaker, seismic source as
Externí odkaz:
http://arxiv.org/abs/1110.2005
The first observations of seismic responses to solar flares were carried out using time-distance (TD) and holography techniques applied to SOHO/MDI Dopplergrams obtained from space and un-affected by terrestrial atmospheric disturbances. However, the
Externí odkaz:
http://arxiv.org/abs/1107.1798
Simultaneous simulation of HXR and MW emission with the same populations of electrons is still a great challenge for interpretation of observations in real events. In this paper we apply the FP kinetic model of precipitation of electron beam with ene
Externí odkaz:
http://arxiv.org/abs/1105.3508
Autor:
Zharkova, V. V., Zharkov, S. I.
Publikováno v:
Astrophys.J.664:573-585,2007
The 3 seismic sources S1, S2 and S3 detected from MDI dopplergrams using the time-distance diagram technique are presented with the locations, areas and vertical and horizontal velocities of the visible wave displacements. Within the datacube of 120
Externí odkaz:
http://arxiv.org/abs/0802.2787
Autor:
Zharkova, V. V., Schetinin, V.
We describe a new neural-network technique developed for an automated recognition of solar filaments visible in the hydrogen H-alpha line full disk spectroheliograms. This technique allows neural networks learn from a few image fragments labelled man
Externí odkaz:
http://arxiv.org/abs/cs/0504053