Zobrazeno 1 - 10
of 275
pro vyhledávání: '"Takeshi Go Tsuru"'
Autor:
Shun Inoue, Wataru Buz Iwakiri, Teruaki Enoto, Hiroyuki Uchida, Miki Kurihara, Masahiro Tsujimoto, Yuta Notsu, Kenji Hamaguchi, Keith Gendreau, Zaven Arzoumanian, Takeshi Go Tsuru
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L12 (2024)
The Monitor of All-sky X-ray Image (MAXI) detected a superflare, releasing 5 × 10 ^37 erg in 2−10 keV, of the RS CVn-type star IM Peg at 10:41 UT on 2023 July 23 with its Gas Slit Camera (2−30 keV). We conducted X-ray follow-up observations of t
Externí odkaz:
https://doaj.org/article/01f0edecc5e24d318988ced2e07d4870
Autor:
Kai Matsunaga, Hiroyuki Uchida, Rei Enokiya, Toshiki Sato, Ryo Sawada, Hideyuki Umeda, Takuto Narita, Takeshi Go Tsuru
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 4 (2024)
It is generally hard to put robust constraints on progenitor masses of supernovae and supernova remnants (SNRs) observationally, while they offer tantalizing clues to understanding explosion mechanisms and mass distribution. Our recent study suggests
Externí odkaz:
https://doaj.org/article/07d84c69472b4391ac1ca99fc7d88cef
Progenitor Constraint with Circumstellar Material for the Magnetar-hosting Supernova Remnant RCW 103
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 137 (2023)
Stellar winds blown out from massive stars (≳10 M _⊙ ) contain precious information on the progenitor itself, and in this context the most important elements are carbon (C), nitrogen (N), and oxygen (O), which are produced by the CNO cycle in the
Externí odkaz:
https://doaj.org/article/7d50813a37394d90a9b5729eb7daf150
Autor:
Sumeet Shrestha, Shoji Kawahito, Hiroki Kamehama, Syunta Nakanishi, Keita Yasutomi, Keiichiro Kagawa, Nobukazu Teranishi, Ayaki Takeda, Takeshi Go Tsuru, Ikuo Kurachi, Yasuo Arai
Publikováno v:
Sensors, Vol 18, Iss 6, p 1789 (2018)
In this paper, we report on the development of a monolithic active pixel sensor for X-ray imaging using 0.2 µm fully depleted silicon-on-insulator (SOI)-based technology to support next generation astronomical satellite missions. Detail regarding lo
Externí odkaz:
https://doaj.org/article/567dd4999f244c56b772b1ca37a14b20
Autor:
Hiroki Kamehama, Shoji Kawahito, Sumeet Shrestha, Syunta Nakanishi, Keita Yasutomi, Ayaki Takeda, Takeshi Go Tsuru, Yasuo Arai
Publikováno v:
Sensors, Vol 18, Iss 1, p 27 (2017)
This paper presents a novel full-depletion Si X-ray detector based on silicon-on-insulator pixel (SOIPIX) technology using a pinned depleted diode structure, named the SOIPIX-PDD. The SOIPIX-PDD greatly reduces stray capacitance at the charge sensing
Externí odkaz:
https://doaj.org/article/35eab8a5f46a4eb5b8f7ee146700bfc7
Autor:
Yosuke Koshiba, Hiroyuki Uchida, Takaaki Tanaka, Yuki Amano, Hidetoshi Sano, Takeshi Go Tsuru
Publikováno v:
Publications of the Astronomical Society of Japan. 74:757-766
Recent high-resolution X-ray spectroscopy has revealed that several supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) show unusually high forbidden-to-resonance ($f/r$) line ratios. While their origin is still uncertain and debated, most
Mechanisms of particle heating are crucial to understanding the shock physics in supernova remnants (SNRs). However, there has been little information on time variabilities of thermalized particles so far. Here, we present a discovery of a gradually-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d5d52419199696de083a7da1cfd51c2
http://arxiv.org/abs/2209.12150
http://arxiv.org/abs/2209.12150
Autor:
Kazuho Kayama, Takaaki Tanaka, Hiroyuki Uchida, Takeshi Go Tsuru, Takahiro Sudoh, Yoshiyuki Inoue, Dmitry Khangulyan, Naomi Tsuji, Hiroaki Yamamoto
The X-ray binary SS 433, embedded in the W50 nebula (or supernova remnant W50), shows bipolar jets that are ejected with mildly relativistic velocities, and extend toward the east and west out to scales of tens of parsecs. Previous X-ray observations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7576f2d17123e3c2b4441347bc43bdbb
http://arxiv.org/abs/2207.05924
http://arxiv.org/abs/2207.05924
Autor:
Yukiko Tanaka, Hiroyuki Uchida, Takaaki Tanaka, Yuki Amano, Yosuke Koshiba, Takeshi Go Tsuru, Hidetoshi Sano, Yasuo Fukui
Publikováno v:
The Astrophysical Journal. 933(1)
Recent high-resolution X-ray spectroscopy revealed possible presence of charge exchange (CX) X-ray emission in supernova remnants (SNRs). Although CX is expected to take place at outermost edges of SNR shells, no significant measurement has been repo
Autor:
Mika Kagaya, Hideaki Katagiri, Ryo Kato, Naomi Tojo, Ayaki Takeda, Kenji Shimazoe, Takeshi Go Tsuru, Takaaki Tanaka, Mizuki Uenomachi, Lan Zhang
Publikováno v:
2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).