35 citations · 67 across the 3 of their papers we have counts for
3 papers
Helioseismic Signature of Chromospheric Downflows in Acoustic Travel-Time Measurements from Hinode
Kaori Nagashima, Takashi Sekii, Alexander G. Kosovichev +2
We report on a signature of chromospheric downflows in two emerging-flux regions detected by time-distance helioseismology analysis. We use both chromospheric intensity oscillation…
Triggering Mechanism for the Filament Eruption on 2005 September 13 in Active Region NOAA 10808
Kaori Nagashima, Hiroaki Isobe, Takaaki Yokoyama +3
On 2005 September 13 a filament eruption accompanied by a halo CME occurred in the most flare-productive active region NOAA 10808 in Solar Cycle 23. Using multi-wavelength observat…
Statistical Study of the Reconnection Rate in Solar Flares Observed with YOHKOH/SXT
Kaori Nagashima, Takaaki Yokoyama
We report a statistical study of flares observed with the Soft X-ray Telescope (SXT) onboard Yohkoh in the year of 2000. We measure physical parameters of 77 flares, such as the te…