Zobrazeno 1 - 10
of 19 659
pro vyhledávání: '"A, Nogami"'
Autor:
Uemura, Makoto, Koga, Yuzuki, Sazaki, Ryosuke, Yukino, Tomoya, Nakaoka, Tatsuya, Imazawa, Ryo, Kato, Taichi, Nogami, Daisaku, Isogai, Keisuke, Kojiguchi, Naoto, Taguchi, Kenta, Tampo, Yusuke, Maehara, Hiroyuki, Ikeda, Shiro
Studying the early stages of transient events provides crucial information about the fundamental physical processes in cataclysmic variables (CVs). However, determining an appropriate observation mode immediately after the discovery of a new transien
Externí odkaz:
http://arxiv.org/abs/2412.02092
Autor:
Kajikiya, Yuto, Namekata, Kosuke, Notsu, Yuta, Maehara, Hiroyuki, Sato, Bunei, Nogami, Daisaku
M-dwarfs show frequent flares and associated coronal mass ejections (CMEs) may significantly impact close-in habitable planets. M-dwarf flares sometimes show red/blue asymmetries in the H$\alpha$ line profile, suggesting prominence eruptions as an ea
Externí odkaz:
http://arxiv.org/abs/2411.08462
Autor:
Nogami, Taichi, Suzuki, Issei, Motai, Daiki, Tanimura, Hiroshi, Ichitsubo, Tetsu, Omata, Takahisa
Tin sulfide (SnS) has garnered much attention as a promising material for various applications, including solar cells and thermoelectric devices, owing to its favorable optical and electronic properties and the abundant and nontoxic nature of its con
Externí odkaz:
http://arxiv.org/abs/2411.07530
Autor:
Tampo, Yusuke, Kato, Taichi, Isogai, Keisuke, Kimura, Mariko, Kojiguchi, Naoto, Nogami, Daisaku, Ito, Junpei, Shibata, Masaaki, Yamanaka, Masayuki, Taguchi, Kenta, Maehara, Hiroyuki, Itoh, Hiroshi, Matsumoto, Katsura, Nakagawa, Momoka, Nishida, Yukitaka, Dvorak, Shawn, Murata, Katsuhiro L., Hosokawa, Ryohei, Imai, Yuri, Ito, Naohiro, Niwano, Masafumi, Sato, Shota, Noto, Ryotaro, Yamaguchi, Ryodai, Schramm, Malte, Oasa, Yumiko, Kanai, Takahiro, Sasaki, Yu, Tordai, Tamás, Vanmunster, Tonny, Kiyota, Seiichiro, Katysheva, Nataly, Shugarov, Sergey Yu., Zubareva, Alexandra M., Antipin, Sergei, Ikonnikova, Natalia, Belinski, Alexandr, Dubovsky, Pavol A., Medulka, Tomáš, Takahashi, Jun, Takayama, Masaki, Ohshima, Tomohito, Saito, Tomoki, Tozuka, Miyako, Sako, Shigeyuki, Tanaka, Masaomi, Tominaga, Nozomu, Horiuchi, Takashi, Hanayama, Hidekazu, Reichart, Daniel E., Kouprianov, Vladimir V., Davidson Jr, James W., Caton, Daniel B., Romanov, Filipp D., Lane, David J., Hambsch, Franz-josef, Narita, Norio, Fukui, Akihiko, Ikoma, Masahiro, Tamura, Motohide, Kawabata, Koji S., Nakaoka, Tatsuya, Imazawa, Ryo
We present a detailed study of the MASTER OT J030227.28+191754.5 outburst in 2021-2022, reaching an amplitude of 10.2 mag and a duration of 60 d. The detections of (1) the double-peaked optical emission lines, and (2) the early and ordinary superhump
Externí odkaz:
http://arxiv.org/abs/2408.13783
Autor:
Sakai, Hiroshi, Arakawa, Dai, Furuya, Takaaki, Haga, Kaiichi, Hagiwara, Masayuki, Harada, Kentaro, Honda, Yosuke, Honma, Teruya, Kako, Eiji, Kato, Ryukou, Kojima, Yuuji, Konomi, Taro, Matsumura, Hiroshi, Miura, Taichi, Miura, Takako, Nagahashi, Shinya, Nakai, Hirotaka, Nakamura, Norio, Nakanishi, Kota, Nigorikawa, Kazuyuki, Nogami, Takashi, Obina, Takashi, Qiu, Feng, Sagehashi, Hidenori, Sakanaka, Shogo, Shimada, Miho, Tadano, Mikito, Takahashi, Takeshi, Takai, Ryota, Tanaka, Olga, Tanimoto, Yasunori, Toyoda, Akihiro, Uchiyama, Takashi, Umemori, Kensei, Yamamoto, Masahiro, Yoshida, Go, Nishimori, Nobuyuki, Hajima, Ryoichi, Nagai, Ryoji, Sawamura, Masaru
A compact energy-recovery linac (cERL) has been un-der construction at KEK since 2009 to develop key technologies for the energy-recovery linac. The cERL began operating in 2013 to create a high-current beam with a low-emittance beam with stable cont
Externí odkaz:
http://arxiv.org/abs/2408.13478
Autor:
Nogami, Taisei, Terauchi, Tachio
Backreference is a well-known practical extension of regular expressions and most modern programming languages, such as Java, Python, JavaScript and more, support regular expressions with backreferences (rewb) in their standard libraries for string p
Externí odkaz:
http://arxiv.org/abs/2406.18918
Autor:
Muraoka, Katsuki, Kojiguchi, Naoto, Ito, Junpei, Nogami, Daisaku, Kato, Taichi, Tampo, Yusuke, Taguchi, Kenta, Isogai, Keisuke, Arranz, Teofilo, Blackwell, John, Blane, David, Brincat, Stephen M., Coates, Graeme, Cooney, Walter, Dvorak, Shawn, Galdies, Charles, Glomski, Daniel, Hambsch, Franz-Josef, Harris, Barbara, Hodge, John, Hernández-Verdejo, Jose L., Iozzi, Marco, Itoh, Hiroshi, Kiyota, Seiichiro, Lee, Darrell, Larsson, Magnus, Lahtinen, Tapio, Myers, Gordon, Monard, Berto, Aimar, Mario Morales, Moriyama, Masayuki, Mizutani, Masanori, Nagai, Kazuo, AlQaissieh, Thabet, Gabuya, Aldrin B., Odeh, Mohammad, Perello, Carlos, Pearce, Andrew, Perales, Juan Miguel, Quiles, David, Romanov, Filipp D., Lane, David J., Richmond, Michael, Ruocco, Nello, Sano, Yasuo, Spearman, Mark, Schmidt, Richard, Vanmunster, Tonny, Dubovsky, Pavol A., Wagner, Richard, Wollenhaupt, Guido, Lorenz, Joachim, Lehmann, Gerhard, Salewski, Andrea, Williamson, Guy
We present our optical photometric observations of the 2022 eruption of the recurrent nova U Scorpii (U Sco) using 49,152 data points over 70 d following the optical peak. We have also analyzed its soft X-ray (0.3--1 keV) light curve by the Neil Gehr
Externí odkaz:
http://arxiv.org/abs/2402.06347
Autor:
Inoue, Shun, Enoto, Teruaki, Namekata, Kosuke, Notsu, Yuta, Honda, Satoshi, Maehara, Hiroyuki, Zhang, Jiale, Lu, Hong-Peng, Uchida, Hiroyuki, Tsuru, Takeshi Go, Nogami, Daisaku, Shibata, Kazunari
We conducted 4-night multiwavelength observations of an active M-dwarf star EV Lac on 2022 October 24$-$27 with simultaneous coverage of soft X-rays (NICER; 0.2$-$12 $\mathrm{keV}$, Swift XRT; 0.2$-$10 $\mathrm{keV}$), near-ultraviolet (Swift UVOT/UV
Externí odkaz:
http://arxiv.org/abs/2401.00399
Autor:
Taguchi, Kenta, Maeda, Keiichi, Maehara, Hiroyuki, Tajitsu, Akito, Yamanaka, Masayuki, Arai, Akira, Isogai, Keisuke, Shibata, Masaaki, Tampo, Yusuke, Kojiguchi, Naoto, Nogami, Daisaku, Kato, Taichi
The lowest possible mass of ONeMg white dwarfs (WDs) has not been clarified despite its importance in the formation and evolution of WDs. We tackle this issue by studying the properties of V1405 Cas (Nova Cassiopeiae 2021), which is an outlier given
Externí odkaz:
http://arxiv.org/abs/2310.08641
Autor:
Notsu, Yuta, Kowalski, Adam F., Maehara, Hiroyuki, Namekata, Kosuke, Hamaguchi, Kenji, Enoto, Teruaki, Tristan, Isaiah I., Hawley, Suzanne L., Davenport, James R. A., Honda, Satoshi, Ikuta, Kai, Inoue, Shun, Namizaki, Keiichi, Nogami, Daisaku, Shibata, Kazunari
We conducted the time-resolved simultaneous optical spectroscopic and photometric observations of mid M dwarf flare stars YZ CMi, EV Lac, and AD Leo. Spectroscopic observations were obtained using Apache Point Observatory 3.5m and Small \& Moderate A
Externí odkaz:
http://arxiv.org/abs/2310.02450