activity
19962023
most citedSuperflares on Solar Type Stars Observed with Kepler I. Statistical Properties of Superflares

492 citations · 8k across the 133 of their papers we have counts for

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Showing 2008 · astro-phShow all

6 papers · 2 filters

astro-ph2008★ 28 cited

Evolution of Anemone AR NOAA 10798 and the Related Geo-Effective Flares and CMEs

Ayumi Asai, Kazunari Shibata, Takako T. Ishii +4

We present a detailed examination of the features of the Active Region (AR) NOAA 10798. This AR generated coronal mass ejections (CMEs) that caused a large geomagnetic storm on 24…

astro-ph2008★ 436 cited

Chromospheric Anemone Jets as Evidence of Ubiquitous Reconnection

Kazunari Shibata, Tahei Nakamura, Takuma Matsumoto +19

The heating of the solar chromosphere and corona is a long-standing puzzle in solar physics. Hinode observations show the ubiquitous presence of chromospheric anemone jets outside…

astro-ph2008★ 31 cited

Numerical examination of plasmoid-induced reconnection model for solar flares: the relation between plasmoid velocity and reconnection rate

Keisuke Nishida, Masaki Shimizu, Daikou Shiota +3

The plasmoid-induced-reconnection model explaining solar flares based on bursty reconnection produced by an ejecting plasmoid suggests a possible relation between the ejection velo…

astro-ph2008★ 33 cited

Characteristics of Anemone Active Regions Appearing in Coronal Holes Observed with {\it Yohkoh} Soft X-ray Telescope

Ayumi Asai, Kazunari Shibata, Hirohisa Hara +1

Coronal structure of active regions appearing in coronal holes is studied by using the data obtained with the Soft X-Ray Telescope (SXT) aboard {\it Yohkoh} from 1991 November to 1…

astro-ph2008

Solar-type Magnetic Reconnection Model for Magnetar Giant Flare

Youhei Masada, Shigehiro Nagataki, Kazunari Shibata +1

We present a theoretical model describing magnetar giant flares on the basis of solar flare/coronal mass ejection theory. In our model, a preflare activity plays a crucial role in…

astro-ph2008★ 171 cited

Emergence of a Helical Flux Rope Under an Active Region Prominence

Takenori J. Okamoto, Saku Tsuneta, Bruce W. Lites +12

Continuous observations were obtained of active region 10953 with the Solar Optical Telescope (SOT) on board the \emph{Hinode} satellite during 2007 April 28 to May 9. A prominence…