output
19922026
most citedWidely-Linear Digital Self-Interference Cancellation in Direct-Conversion Full-Duplex Transceiver

287 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing astro-ph.SRShow all

5 papers · 1 filter

astro-ph.SR2022★ 2 cited

An expanding ring of the hypercompact HII region W49N:A2

Ryosuke Miyawaki, Masahiko Hayashi, Tetsuo Hasegawa

We present 250~GHz continuum and H29alpha line data toward W49N:A2, a hypercompact HII region ionized by an O9 star. The data obtained with ALMA at a resolution of ~0"05 (600 au) c…

astro-ph.SR2017★ 22 cited

Iwahashi Zenbei's Sunspot Drawings in 1793 in Japan

Hisashi Hayakawa, Kiyomi Iwahashi, Harufumi Tamazawa +2

Three Japanese sunspot drawings associated with Iwahashi Zenbei (1756-1811) are shown here from contemporary manuscripts and woodprint documents with the relevant texts. We reveale…

astro-ph.SR2017★ 16 cited

Records of Auroral Candidates and Sunspots in Rikkokushi, Chronicles of Ancient Japan from Early 7th Century to 887

Hisashi Hayakawa, Kiyomi Iwahashi, Harufumi Tamazawa +5

In this article, we present the results of the surveys on sunspots and auroral candidates in Rikkokushi, Japanese Official Histories from the early 7th century to 887 to review the…

astro-ph.SR2017★ 38 cited

Records of Sunspots and Aurora Candidates in the Chinese Official Histories of the Yuán and Míng Dynasties during 1261-1644

Hisashi Hayakawa, Harufumi Tamazawa, Yusuke Ebihara +4

Records of observations of sunspots and auroras in pre-telescopic historical documents provide useful information about past solar activity both in long-term trends and short-term…

astro-ph.SR2013★ 33 cited

Emission Height and Temperature Distribution of White-Light Emission Observed by Hinode/SOT from the 2012 January 27 X-class Solar Flare

Kyoko Watanabe, Toshifumi Shimizu, Satoshi Masuda +2

White-light emissions were observed from an X1.7 class solar flare on 27 January 2012, using three continuum bands (red, green, and blue) of the Solar Optical Telescope (SOT) onboa…