Zobrazeno 1 - 10
of 604
pro vyhledávání: '"Takahashi Hiromitsu"'
Autor:
Paolo Soffitta, Enrico Costa, Nicolas De Angelis, Ettore Del Monte, Klaus Desch, Alessandro Di Marco, Giuseppe Di Persio, Sergio Fabiani, Riccardo Ferrazzoli, Markus Gruber, Takahashi Hiromitsu, Saba Imtiaz, Philip Kaaret, Jochen Kaminski, Dawoon E. Kim, Fabian Kislat, Henric Krawczynski, Fabio La Monaca, Carlo Lefevre, Hemanth Manikantan, Herman L. Marshall, Romana Mikusincova, Alfredo Morbidini, Fabio Muleri, Stephen L. O’Dell, Takashi Okajima, Mark Pearce, Vladislavs Plesanovs, Brian D. Ramsey, Ajay Ratheesh, Alda Rubini, Shravan Vengalil Menon, Martin C. Weisskopf
Publikováno v:
Galaxies, Vol 12, Iss 4, p 47 (2024)
The Imaging X-ray Polarimetry Explorer (IXPE) has confirmed that X-ray polarimetry is a valuable tool in astronomy, providing critical insights into the emission processes and the geometry of compact objects. IXPE was designed to be sensitive in the
Externí odkaz:
https://doaj.org/article/43d69e6ee0294792ace8a35f796e0d49
Autor:
Eguchi, Satoshi, Tashiro, Makoto, Terada, Yukikatsu, Takahashi, Hiromitsu, Nobukawa, Masayoshi, Ebisawa, Ken, Hayashi, Katsuhiro, Yoshida, Tessei, Kanemaru, Yoshiaki, Ogawa, Shoji, Holland, Matthew P., Loewenstein, Michael, Miller, Eric D., Yaqoob, Tahir, Hill, Robert S., Waddy, Morgan D., Mekosh, Mark M., Fox, Joseph B., Brewer, Isabella S., Aldoretta, Emily, Team, XRISM Science Operations
The X-Ray Imaging and Spectroscopy Mission (XRISM) is the 7th Japanese X-ray observatory, whose development and operation are in collaboration with universities and research institutes in Japan, U.S., and Europe, including JAXA, NASA, and ESA. The te
Externí odkaz:
http://arxiv.org/abs/2412.13225
Autor:
Tamagawa, Toru, Enoto, Teruaki, Kitaguchi, Takao, Iwakiri, Wataru, Kato, Yo, Numazawa, Masaki, Mihara, Tatehiro, Takeda, Tomoshi, Ota, Naoyuki, Watanabe, Sota, Aoyama, Amira, Iwata, Satoko, Takahashi, Takuya, Yamasaki, Kaede, Hu, Chin-Ping, Takahashi, Hiromitsu, Yoshida, Yuto, Sato, Hiroki, Hayashi, Shoki, Zhou, Yuanhui, Uchiyama, Keisuke, Jujo, Arata, Odaka, Hirokazu, Tamba, Tsubasa, Taniguchi, Kentaro
NinjaSat is an X-ray CubeSat designed for agile, long-term continuous observations of bright X-ray sources, with the size of 6U ($100\times200\times300$ mm$^3$) and a mass of 8 kg. NinjaSat is capable of pointing at X-ray sources with an accuracy of
Externí odkaz:
http://arxiv.org/abs/2412.03016
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