436 citations · 1.2k across the 20 of their papers we have counts for
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astro-ph.SR2014★ 12 cited
Observations of Umbral Dots and their Physical Models
Hiroko Watanabe
The Hinode satellite opens a new era to the sunspots research, because of its high spatial resolution and temporal stability. Fine scale structures in sunspots, called umbral dots…
astro-ph.IM2014★ 7 cited
Ly-alpha polarimeter design for CLASP rocket experiment
H. Watanabe, N. Narukage, M. Kubo +7
A sounding-rocket program called the Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) is proposed to be launched in the summer of 2014. CLASP will observe the solar chromosphe…
astro-ph.SR2014★ 6 cited
Morphological study of penumbral formation
Reizaburo Kitai, Hiroko Watanabe, Ken'ichi Otsuji
Penumbrae are known to be area of mainly horizontal magnetic field surrounding umbrae of relatively large and mature sunspots. In this paper, we observationally studied the formati…