Zobrazeno 1 - 10
of 195
pro vyhledávání: '"KUSANO, Kanya"'
The emergence of magnetic flux from the deep convection zone plays an important role in the solar magnetism, such as the generation of active regions and triggering of various eruptive phenomena, including jets, flares, and coronal mass ejections. To
Externí odkaz:
http://arxiv.org/abs/2409.15442
Solar energetic events are caused by the release of magnetic energy accumulated in the solar atmosphere. To understand their initiating physical mechanisms, the dynamics of the coronal magnetic fields must be studied. Unfortunately, the dominant mech
Externí odkaz:
http://arxiv.org/abs/2408.06430
Autor:
Hayakawa, Hisashi, Ebihara, Yusuke, Mishev, Alexander, Koldobskiy, Sergey, Kusano, Kanya, Bechet, Sabrina, Yashiro, Seiji, Iwai, Kazumasa, Shinbori, Atsuki, Mursula, Kalevi, Miyake, Fusa, Shiota, Daikou, Silveira, Marcos V. D., Stuart, Robert, Oliveira, Denny M., Akiyama, Sachiko, Ohnishi, Kouji, Ledvina, Vincent, Miyoshi, Yoshizumi
Publikováno v:
The Astrophysical Journal, 2024
In May 2024, the scientific community observed intense solar eruptions that resulted in a great geomagnetic storm and auroral extension, highlighting the need to document and quantify these events. This study mainly focuses on their quantification. T
Externí odkaz:
http://arxiv.org/abs/2407.07665
Particle acceleration and their escape into the heliosphere in solar flares with open magnetic field
Autor:
Gordovskyy, Mykola, Browning, Philippa K., Kusano, Kanya, Inoue, Satoshi, Vekstein, Gregory E.
Energetic particle populations in the solar corona and in the heliosphere appear to have different characteristics even when produced in the same solar flare. It is not clear what causes this difference: properties of the acceleration region, the lar
Externí odkaz:
http://arxiv.org/abs/2305.19449
Solar flares and coronal mass ejections, the primary space weather disturbances affecting the entire heliosphere and near-Earth environment, mainly emanate from sunspot regions harbouring high degrees of magnetic twist. However, it is not clear how m
Externí odkaz:
http://arxiv.org/abs/2305.19323
Impact of subsurface convective flows on the formation of sunspot magnetic field and energy build-up
Strong solar flares occur in $\delta $-spots characterized by the opposite-polarity magnetic fluxes in a single penumbra. Sunspot formation via flux emergence from the convection zone to the photosphere can be strongly affected by convective turbulen
Externí odkaz:
http://arxiv.org/abs/2209.06311
In our earlier study of this series (Park et al. 2020, Paper I), we examined the hemispheric sign preference (HSP) of magnetic helicity flux $dH/dt$ across photospheric surfaces of 4802 samples of 1105 unique active regions (ARs) observed during sola
Externí odkaz:
http://arxiv.org/abs/2102.13331
Solar flares and plasma eruptions are sudden releases of magnetic energy stored in the plasma atmosphere. To understand the physical mechanisms governing their occurrences, three-dimensional magnetic fields from the photosphere up to the corona must
Externí odkaz:
http://arxiv.org/abs/2101.12395
A hemispheric preference in the dominant sign of magnetic helicity has been observed in numerous features in the solar atmosphere: i.e., left-handed/right-handed helicity in the northern/southern hemisphere. The relative importance of different physi
Externí odkaz:
http://arxiv.org/abs/2010.06134