Zobrazeno 1 - 10
of 593
pro vyhledávání: '"Takahashi, Hiromitsu"'
Autor:
Takeda, Tomoshi, Tamagawa, Toru, Enoto, Teruaki, Kitaguchi, Takao, Kato, Yo, Mihara, Tatehiro, Iwakiri, Wataru, Numazawa, Masaki, Ota, Naoyuki, Watanabe, Sota, Jujo, Arata, Aoyama, Amira, Iwata, Satoko, Takahashi, Takuya, Yamasaki, Kaede, Hu, Chin-Ping, Takahashi, Hiromitsu, Dohi, Akira, Nishimura, Nobuya, Hirai, Ryosuke, Yoshida, Yuto, Sato, Hiroki, Hayashi, Syoki, Zhou, Yuanhui, Uchiyama, Keisuke, Odaka, Hirokazu, Tamba, Tsubasa, Taniguchi, Kentaro
The CubeSat X-ray observatory NinjaSat was launched on 2023 November 11 and has provided opportunities for agile and flexible monitoring of bright X-ray sources. On 2024 February 23, the NinjaSat team started long-term observation of the new X-ray so
Externí odkaz:
http://arxiv.org/abs/2411.10992
Autor:
Ripa, Jakub, Dafcikova, Marianna, Kosik, Pavel, Münz, Filip, Ohno, Masanori, Galgoczi, Gabor, Werner, Norbert, Pal, Andras, Meszaros, Laszlo, Csak, Balazs, Fukazawa, Yasushi, Takahashi, Hiromitsu, Mizuno, Tsunefumi, Nakazawa, Kazuhiro, Odaka, Hirokazu, Ichinohe, Yuto, Kapus, Jakub, Hudec, Jan, Frajt, Marcel, Rezenov, Maksim, Daniel, Vladimir, Svoboda, Petr, Dudas, Juraj, Sabol, Martin, Laszlo, Robert, Koleda, Martin, Duriskova, Michaela, Szakszonova, Lea, Kolar, Martin, Husarikova, Nikola, Breuer, Jean-Paul, Hroch, Filip, Vitek, Tomas, Vertat, Ivo, Urbanec, Tomas, Povalac, Ales, Kasal, Miroslav, Hanak, Peter, smelko, Miroslav, Topinka, Martin, Chang, Hsiang-Kuang, Liu, Tsung-Che, Lin, Chih-Hsun, Hu, Chin-Ping, Tsao, Che-Chih
It is well known that silicon photomultipliers (SiPMs) are prone to radiation damage. With the increasing popularity of SiPMs among new spaceborne missions, especially on CubeSats, it is of paramount importance to characterize their performance in sp
Externí odkaz:
http://arxiv.org/abs/2411.00607
Autor:
Münz, Filip, Řípa, Jakub, Pál, András, Dafčíková, Marianna, Werner, Norbert, Ohno, Masanori, Meszáros, László, Dániel, Vladimír, Hanák, Peter, Hudec, Ján, Frajt, Marcel, Kapuš, Jakub, Svoboda, Petr, Dudáš, Juraj, Kasal, Miroslav, Vítek, Tomáš, Kolář, Martin, Szakszonová, Lea, Lipovský, Pavol, Ďuríšková, Michaela, Veřtát, Ivo, Sabol, Martin, Junas, Milan, Maroš, Roman, Kosík, Pavel, Frei, Zsolt, Takahashi, Hiromitsu, Fukazawa, Yasushi, Galgóczi, Gábor, Csák, Balázs, László, Robert, Mizuno, Tsunefumi, Husáriková, Nikola, Nakazawa, Kazuhiro
Publikováno v:
Proc. of SPIE Vol. 13093 (2024), 130936J-1
GRBAlpha is a 1U CubeSat launched in March 2021 to a sun-synchronous LEO at an altitude of 550 km to perform an in-orbit demonstration of a novel gamma-ray burst detector developed for CubeSats. VZLUSAT-2 followed ten months later in a similar orbit
Externí odkaz:
http://arxiv.org/abs/2407.12555
Autor:
Morishita, Teruaki, Fukazawa, Yasushi, Takahashi, Hiromitsu, Kayanoki, Taishu, Niwa, Ryota, Hashizume, Masaki
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A, vol. 1061, p. 169097 (2024)
The radiation damage to a silicon photomultiplier (SiPM) set on a satellite orbit increases energy threshold for scintillator detectors. We confirmed that 1 krad of radiation increases the energy threshold by approximately a factor of 10, which is wo
Externí odkaz:
http://arxiv.org/abs/2401.05087
Autor:
Mori, Koji, Tsuru, Takeshi G., Nakazawa, Kazuhiro, Ueda, Yoshihiro, Watanabe, Shin, Tanaka, Takaaki, Ishida, Manabu, Matsumoto, Hironori, Awaki, Hisamitsu, Murakami, Hiroshi, Nobukawa, Masayoshi, Takeda, Ayaki, Fukazawa, Yasushi, Tsunemi, Hiroshi, Takahashi, Tadayuki, Hornschemeier, Ann, Okajima, Takashi, Zhang, William W., Williams, Brian J., Venters, Tonia, Madsen, Kristin, Yukita, Mihoko, Akamatsu, Hiroki, Bamba, Aya, Enoto, Teruaki, Fujita, Yutaka, Furuzawa, Akihiro, Hagino, Kouichi, Ishimura, Kosei, Itoh, Masayuki, Kitayama, Tetsu, Kobayashi, Shogo, Kohmura, Takayoshi, Kubota, Aya, Mizumoto, Misaki, Mizuno, Tsunefumi, Nakajima, Hiroshi, Nobukawa, Kumiko K., Noda, Hirofumi, Odaka, Hirokazu, Ota, Naomi, Sato, Toshiki, Shidatsu, Megumi, Suzuki, Hiromasa, Takahashi, Hiromitsu, Tanimoto, Atsushi, Terada, Yukikatsu, Terashima, Yuichi, Uchida, Hiroyuki, Uchiyama, Yasunobu, Yamaguchi, Hiroya, Yatsu, Yoichi
Publikováno v:
Proc. of SPIE vol. 12181, 1218122 (2022)
In this multi-messenger astronomy era, all the observational probes are improving their sensitivities and overall performance. The Focusing on Relativistic universe and Cosmic Evolution (FORCE) mission, the product of a JAXA/NASA collaboration, will
Externí odkaz:
http://arxiv.org/abs/2303.07577
Autor:
Pál, András, Ohno, Masanori, Mészáros, László, Werner, Norbert, Řípa, Jakub, Csák, Balázs, Dafčíková, Marianna, Frajt, Marcel, Fukazawa, Yasushi, Hanák, Peter, Hudec, Ján, Husáriková, Nikola, Kapuš, Jakub, Kasal, Miroslav, Kolář, Martin, Koleda, Martin, Laszlo, Robert, Lipovský, Pavol, Mizuno, Tsunefumi, Münz, Filip, Nakazawa, Kazuhiro, Rezenov, Maksim, Šmelko, Miroslav, Takahashi, Hiromitsu, Topinka, Martin, Urbanec, Tomáš, Breuer, Jean-Paul, Bozóki, Tamás, Dálya, Gergely, Enoto, Teruaki, Frei, Zsolt, Friss, Gergely, Galgóczi, Gábor, Hroch, Filip, Ichinohe, Yuto, Kapás, Kornél, Kiss, László L., Matake, Hiroto, Odaka, Hirokazu, Poon, Helen, Povalač, Aleš, Takátsy, János, Torigoe, Kento, Uchida, Nagomi, Uchida, Yuusuke
Aims. Since launched on 2021 March 22, the 1U-sized CubeSat GRBAlpha operates and collects scientific data on high-energy transients, making it the smallest astrophysical space observatory to date. GRBAlpha is an in-obit demonstration of a gamma-ray
Externí odkaz:
http://arxiv.org/abs/2302.10048
Autor:
Ripa, Jakub, Takahashi, Hiromitsu, Fukazawa, Yasushi, Werner, Norbert, Munz, Filip, Pal, Andras, Ohno, Masanori, Dafcikova, Marianna, Meszaros, Laszlo, Csak, Balazs, Husarikova, Nikola, Kolar, Martin, Galgoczi, Gabor, Breuer, Jean-Paul, Hroch, Filip, Hudec, Jan, Kapus, Jakub, Frajt, Marcel, Rezenov, Maksim, Laszlo, Robert, Koleda, Martin, Smelko, Miroslav, Hanak, Peter, Lipovsky, Pavol, Urbanec, Tomas, Kasal, Miroslav, Povalac, Ales, Uchida, Yuusuke, Poon, Helen, Matake, Hiroto, Nakazawa, Kazuhiro, Uchida, Nagomi, Bozoki, Tamas, Dalya, Gergely, Enoto, Teruaki, Frei, Zsolt, Friss, Gergely, Ichinohe, Yuto, Kapas, Kornel, Kiss, Laszlo L., Mizuno, Tsunefumi, Odaka, Hirokazu, Takatsy, Janos, Topinka, Martin, Torigoe, Kento
Publikováno v:
A&A 677, L2 (2023)
The brightest gamma-ray burst ever observed, long-duration GRB 221009A, was detected by GRBAlpha nano-satellite without saturation. We present light curves of the prompt emission in 13 energy bands, from 80 keV to 950 keV, and perform a spectral anal
Externí odkaz:
http://arxiv.org/abs/2302.10047
Autor:
Ripa, Jakub, Pal, Andras, Ohno, Masanori, Werner, Norbert, Meszaros, Laszlo, Csak, Balazs, Dafcikova, Marianna, Daniel, Vladimir, Dudas, Juraj, Frajt, Marcel, Hanak, Peter, Hudec, Jan, Junas, Milan, Kapus, Jakub, Kasal, Miroslav, Koleda, Martin, Laszlo, Robert, Lipovsky, Pavol, Munz, Filip, Rezenov, Maksim, Smelko, Miroslav, Svoboda, Petr, Takahashi, Hiromitsu, Topinka, Martin, Urbanec, Tomas, Breuer, Jean-Paul, Enoto, Teruaki, Frei, Zsolt, Fukazawa, Yasushi, Galgoczi, Gabor, Hroch, Filip, Ichinohe, Yuto, Kiss, Laszlo, Matake, Hiroto, Mizuno, Tsunefumi, Nakazawa, Kazuhiro, Odaka, Hirokazu, Poon, Helen, Uchida, Nagomi, Uchida, Yuusuke
Publikováno v:
Proc. SPIE, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray, 12181 (2022) 121811K
We present the detector performance and early science results from GRBAlpha, a 1U CubeSat mission, which is a technological pathfinder to a future constellation of nanosatellites monitoring gamma-ray bursts (GRBs). GRBAlpha was launched in March 2021
Externí odkaz:
http://arxiv.org/abs/2207.03272
Autor:
Abarr, Quincy, Beheshtipour, Banafsheh, Beilicke, Matthias, Bose, Richard, Braun, Dana, de Geronimo, Gianluigi, Dowkontt, Paul, Errando, Manel, Gadson, Thomas, Guarino, Victor, Heatwole, Scott, Hossen, Md. Arman, Iyer, Nirmal K., Kislat, Fabian, Kiss, Mózsi, Kitaguchi, Takao, Krawczynski, Henric, Lanzi, R. James, Li, Shaorui, Lisalda, Lindsey, Okajima, Takashi, Pearce, Mark, Peterson, Zachary, Press, Logan, Rauch, Brian, Simburger, Garry, Stuchlik, David, Takahashi, Hiromitsu, Tang, Jason, Uchida, Nagomi, West, Andrew
X-Calibur is a balloon-borne telescope that measures the polarization of high-energy X-rays in the 15--50keV energy range. The instrument makes use of the fact that X-rays scatter preferentially perpendicular to the polarization direction. A berylliu
Externí odkaz:
http://arxiv.org/abs/2204.09761
Autor:
Kayanoki, Taishu, Takahashi, Hiromitsu, Niwa, Ryota, Morishita, Teruaki, Hashizume, Masaki, Fukazawa, Yasushi, Suda, Yusuke, Kawabata, Koji S.
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A September 2024 1066
