Zobrazeno 1 - 10
of 294
pro vyhledávání: '"Michalek, G."'
Publikováno v:
Solar Physics, 2022
We have statistically analyzed 379 radio-loud (RL) CMEs and their associated flares during the period 1996 - 2019 covering both solar cycles (SC) 23 and 24. We classified them into two sets of populations based on the observation period: i) 235 event
Externí odkaz:
http://arxiv.org/abs/2204.07968
Publikováno v:
Astrophysics, 2021
We analyze radio bursts observed in events with interacting/non-interacting CMEs that produced major SEPs (Ip $>$ 10 MeV) fromApril 1997 to December 2014.We compare properties of meter (m), deca-hectometer (DH) type II as well as DH type III bursts,
Externí odkaz:
http://arxiv.org/abs/2107.09955
Solar cycle (SC) 24 has come to an end by the end of 2019, providing information on two full cycles to understand the manifestations of SC 24, the smallest cycle in the Space Age that has resulted in a weak heliospheric state indicated by the reduced
Externí odkaz:
http://arxiv.org/abs/2007.08291
A gradual solar energetic particle (SEP) event is thought to happen when particles are accelerated at a shock due to a fast coronal mass ejection (CME). To quantify what kind of solar eruptions can result in such SEP events, we have conducted detaile
Externí odkaz:
http://arxiv.org/abs/1702.02825
Nanodevices consisting of a quantum dot tunnel coupled to one superconducting and two normal electrodes may serve as a source of entangled electrons. As a result of crossed Andreev reflection the Cooper pair of s-wave character may be split into two
Externí odkaz:
http://arxiv.org/abs/1608.00023
Publikováno v:
Scientific Reports 5, 14572 (2015)
We predict strong non-local effects in the three-terminal hybrid device, comprising the quantum dot embedded between two conducting leads and third superconducting reservoir. They result from competition between the ballistic electron transfer and th
Externí odkaz:
http://arxiv.org/abs/1505.07275
We report on a remarkable finding that the halo coronal mass ejections (CMEs) in cycle 24 are more abundant than in cycle 23, although the sunspot number in cycle 24 has dropped by about 40%. We also find that the distribution of halo-CME source loca
Externí odkaz:
http://arxiv.org/abs/1504.01797
Using magnetic and microwave butterfly diagrams, we compare the behavior of solar polar regions to show that (i) the polar magnetic field and the microwave brightness temperature during the solar minimum substantially diminished during the cycle 23/2
Externí odkaz:
http://arxiv.org/abs/1204.2816
Halo coronal mass ejections (HCMEs) originating from regions close to the center of the Sun are likely to be responsible for severe geomagnetic storms. It is important to predict geo-effectiveness of HCMEs using observations when they are still near
Externí odkaz:
http://arxiv.org/abs/0801.1977
Autor:
Michalek, G.
Publikováno v:
SolarPhys.237:101,2006
Due to projection effects, coronagraphic observations cannot uniquely determine parameters relevant to the geoeffectiveness of CMEs, such as the true propagation speed, width, or source location. The Cone Model for Coronal Mass Ejections (CMEs) has b
Externí odkaz:
http://arxiv.org/abs/0710.4537