Zobrazeno 1 - 10
of 57 525
pro vyhledávání: '"MIYOSHI, A."'
Autor:
Katsuda, Satoru, Shinagawa, Hiroyuki, Fujiwara, Hitoshi, Jin, Hidekatsu, Miyoshi, Yasunobu, Miyoshi, Yoshizumi, Motizuki, Yuko, Nakajima, Motoki, Nakazawa, Kazuhiro, Nobukawa, Kumiko K., Otsuka, Yuichi, Shinbori, Atsushi, Sori, Takuya, Tao, Chihiro, Tashiro, Makoto S., Wada, Yuuki, Yamawaki, Takaya
We present X-ray observations of the upper atmospheric density disturbance caused by the explosive eruption of the Hunga Tonga-Hunga Ha'apai (HTHH) volcano on 15 January 2022. From 14 January to 16 January, the Chinese X-ray astronomy satellite, Insi
Externí odkaz:
http://arxiv.org/abs/2410.09410
Publikováno v:
MNRAS, Vol. 534, Issue 4, Nov. 2024 p3237-3264
We propose that the ring structure found by the Event Horizon Telescope Collaboration (EHTC) as the black hole shadow of Sgr A*is an artifact by the bumpy PSF (Point Spread Function) of the EHT2017. The imaging using sparse u-v data requires detailed
Externí odkaz:
http://arxiv.org/abs/2410.19267
Autor:
Miyake, Y., Nakazono, J., Miyoshi, Y., Harada, Y., Nishino, M. N., Kurita, S., Kasahara, S., Usui, H., Nagamatsu, A., Nakamura, S.
It is widely accepted that the surface potential of the lunar dayside is "on average" several to 10 V positive due to photoelectron emission in addition to the solar wind plasma precipitation. Recent studies, however, have shown that an insulating an
Externí odkaz:
http://arxiv.org/abs/2410.05913
Autor:
Kamizuka, Takafumi, Kawahara, Hajime, Ohsawa, Ryou, Kataza, Hirokazu, Kawata, Daisuke, Yamada, Yoshiyuki, Hirano, Teruyuki, Miyakawa, Kohei, Aizawa, Masataka, Omiya, Masashi, Yano, Taihei, Kano, Ryouhei, Wada, Takehiko, Löffler, Wolfgang, Biermann, Michael, Ramos, Pau, Isobe, Naoki, Usui, Fumihiko, Hattori, Kohei, Yoshioka, Satoshi, Tatekawa, Takayuki, Izumiura, Hideyuki, Fukui, Akihiko, Miyoshi, Makoto, Tatsumi, Daisuke, Gouda, Naoteru
Publikováno v:
Proc. SPIE, 13099, 130992D (2024)
JASMINE is a Japanese planned space mission that aims to reveal the formation history of our Galaxy and discover habitable exoEarths. For these objectives, the JASMINE satellite performs high-precision astrometric observations of the Galactic bulge a
Externí odkaz:
http://arxiv.org/abs/2410.03149
Two critical aspects of radio interferometric imaging analysis are data calibration and deconvolution of the point spread function (PSF) structure. Both of these are particularly important for high-frequency observations using a VLBI network consisti
Externí odkaz:
http://arxiv.org/abs/2409.17477
Autor:
Kadan, Sophie, Zhang, Xiao-Jia, Artemyev, Anton, Miyoshi, Yoshizumi, Matsuoka, Ayako, Kasahara, Yoshiya, Matsuda, Shoya, Hori, Tomoaki, Teramoto, Mariko, Yamamoto, Kazuhiro, Shinohara, Iku
The latitudinal distribution of whistler-mode wave intensity plays a crucial role in determining the efficiency and energy of electrons scattered by these waves in the outer radiation belt. Traditionally, this wave property has mostly been derived fr
Externí odkaz:
http://arxiv.org/abs/2409.09900
Autor:
Miyoshi, Seiji, Yamaguchi, Yua
Adaptive signal processing systems, commonly utilized in applications such as active noise control and acoustic echo cancellation, often encompass nonlinearities due to hardware components such as loudspeakers, microphones, and amplifiers. Examining
Externí odkaz:
http://arxiv.org/abs/2409.05281
Autor:
Arimatsu, Ko, Yoshida, Fumi, Hayamizu, Tsutomu, Ida, Miyoshi, Hashimoto, George L, Abe, Takashi, Akitaya, Hiroshi, Aratani, Akari, Fukuda, Hidekazu, Fujita, Yasuhide, Fujiwara, Takao, Horikawa, Toshihiro, Iihoshi, Tamio, Imamura, Kazuyoshi, Imazawa, Ryo, Kasebe, Hisashi, Kawasaki, Ryosuke, Kishimoto, Hiroshi, Mishima, Kazuhisa, Miyachi, Machiko, Mizutani, Masanori, Nakajima, Maya, Nakatani, Hiroyoshi, Okamura, Kazuhiko, Okanobu, Misaki, Okuda, Masataka, Suzuki, Yuji, Tatsumi, Naoto, Uno, Masafumi, Yamamura, Hidehito, Yasue, Mikoto, Yoshihara, Hideki, Hirabayashi, Masatoshi, Yoshikawa, Makoto
Publikováno v:
Publications of the Astronomical Society of Japan (2024) psae060
We present an analysis of a stellar occultation event caused by a near-Earth asteroid (98943) 2001 CC21, an upcoming flyby target in the Hayabusa2 extended mission, on March 5, 2023. To accurately determine the asteroid's shape from diffraction-affec
Externí odkaz:
http://arxiv.org/abs/2407.19836
Autor:
Hayakawa, Hisashi, Ebihara, Yusuke, Mishev, Alexander, Koldobskiy, Sergey, Kusano, Kanya, Bechet, Sabrina, Yashiro, Seiji, Iwai, Kazumasa, Shinbori, Atsuki, Mursula, Kalevi, Miyake, Fusa, Shiota, Daikou, Silveira, Marcos V. D., Stuart, Robert, Oliveira, Denny M., Akiyama, Sachiko, Ohnishi, Kouji, Miyoshi, Yoshizumi
In May 2024, the scientific community observed intense solar eruptions that resulted in an extreme geomagnetic storm and auroral extension, highlighting the need to document and quantify these events. This study mainly focuses on their quantification
Externí odkaz:
http://arxiv.org/abs/2407.07665
Autor:
Kich, Victor A., Muttaqien, Muhammad A., Toyama, Junya, Miyoshi, Ryutaro, Ida, Yosuke, Ohya, Akihisa, Date, Hisashi
Recent advancements in real-time object detection frameworks have spurred extensive research into their application in robotic systems. This study provides a comparative analysis of YOLOv5 and YOLOv8 models, challenging the prevailing assumption of t
Externí odkaz:
http://arxiv.org/abs/2406.00315