Zobrazeno 1 - 10
of 168
pro vyhledávání: '"TORIUMI, Shin"'
Autor:
Toriumi, Shin
Strong solar flares and coronal mass ejections (CMEs) are prone to originate within and near active regions (ARs) with a high magnetic complexity. Therefore, to better understand the generation mechanism of flares and the resultant CME eruption and t
Externí odkaz:
http://arxiv.org/abs/2409.16353
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
Autor:
Kurihara, Miki, Iwakiri, Wataru Buz, Tsujimoto, Masahiro, Ebisawa, Ken, Toriumi, Shin, Imada, Shinsuke, Tsuboi, Yohko, Usui, Kazuki, Gendreau, Keith C., Arzoumanian, Zaven
We detected a giant X-ray flare from the RS-CVn type binary star UX Ari using MAXI on 2020 August 17 and started a series of NICER observations 89 minutes later. For a week, the entire duration of the flare was covered with 32 snapshot observations i
Externí odkaz:
http://arxiv.org/abs/2403.12351
Understanding the magnetic fields of the Sun is essential for unraveling the underlying mechanisms driving solar activity. Integrating topological data analysis techniques into these investigations can provide valuable insights into the intricate str
Externí odkaz:
http://arxiv.org/abs/2401.16829
We report the discovery of a geocoronal solar wind charge exchange (SWCX) event corresponding to the well-known 2006 December 13th coronal mass ejection (CME) event. Strong evidence for the charge exchange origin of this transient diffuse emission is
Externí odkaz:
http://arxiv.org/abs/2312.03381
We observe an enhanced stellar wind mass-loss rate from low-mass stars exhibiting higher X-ray flux. This trend, however, does not align with the Sun, where no evident correlation between X-ray flux and mass-loss rate is present. To reconcile these o
Externí odkaz:
http://arxiv.org/abs/2309.09399
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
The solar magnetic structure changes over the solar cycle. It has a dipole structure during solar minimum, where the open flux extends mainly from the polar regions into the interplanetary space. During maximum, a complex structure is formed with low
Externí odkaz:
http://arxiv.org/abs/2304.13347
Autor:
Namekata, Kosuke, Toriumi, Shin, Airapetian, Vladimir S., Shoda, Munehito, Watanabe, Kyoko, Notsu, Yuta
Kepler Space Telescope and Transiting Exoplanet Survey Satellite unveiled that Sun-like stars frequently host exoplanets. These exoplanets are subject to fluxes of ionizing radiation in the form of X-ray and extreme-ultraviolet (EUV) radiation that m
Externí odkaz:
http://arxiv.org/abs/2302.10376
Autor:
Hamaguchi, Kenji, Reep, Jeffrey W., Airapetian, Vladimir, Toriumi, Shin, Gendreau, Keith C., Arzoumanian, Zaven
The Neutron star Interior Composition ExploreR (NICER) X-ray observatory observed two powerful X-ray flares equivalent to superflares from the nearby young solar-like star, kappa1 Ceti, in 2019. NICER follows each flare from the onset through the ear
Externí odkaz:
http://arxiv.org/abs/2301.01377