902 citations · 5.1k across the 128 of their papers we have counts for
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Molecular Clouds as a Probe of Cosmic-Ray Acceleration in a Supernova Remnant
Yutaka Fujita, Yutaka Ohira, Shuta J. Tanaka +1
We study cosmic-ray acceleration in a supernova remnant (SNR) and the escape from it. We model nonthermal particle and photon spectra for the hidden SNR in the open cluster Westerl…
Suzaku Observation of the Diffuse X-Ray Emission from the Open Cluster Westerlund 2: a Hypernova Remnant?
Yutaka Fujita, Kiyoshi Hayashida, Hiroaki Takahashi +1
We present the analysis of Suzaku observations of the young open cluster Westerlund 2, which is filled with diffuse X-ray emission. We found that the emission consists of three the…
H band Image of a Planetary Companion around HR 8799 in 2002
Misato Fukagawa, Yoichi Itoh, Motohide Tamura +5
The discovery of three planetary companions around HR 8799 (Marois et al. 2008) marked a significant epoch in direct imaging of extrasolar planets. Given the importance of this sys…
Is the PAMELA anomaly caused by the supernova explosions near the Earth?
Yutaka Fujita, Kazunori Kohri, Ryo Yamazaki +1
We show that the anomaly of the positron fraction observed by the PAMELA experiment can be attributed to recent supernova explosion(s) in a dense gas cloud (DC) near the Earth. Pro…