Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Issei Ueno"'
Autor:
Hiroki Mori, Hiroshi Akitaya, Michitoshi Yoshida, Ryosuke Itoh, Kensei Shiki, Takahiro Nagayama, Miho Kawabata, Keiichi Maeda, Tomoki Morokuma, Nozomu Tominaga, H. Hanayama, Yuki Moritani, T. Urano, Naoki Kawahara, Takashi J. Moriya, Issei Ueno, Koji S. Kawabata, Tatsuya Nakaoka, Taisei Abe, M. Isogai, Makoto Uemura, Masaomi Tanaka, Masayuki Yamanaka, J. Hirochi, Katsutoshi Takaki
We present optical and near-infrared observations of a low-luminosity Type IIP supernova (SN) 2016bkv from the initial rising phase to the plateau phase. Our observations show that the end of the plateau is extended to $\gtrsim 140$ days since the ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59da09b50da9243e92bffc9bea38511e
http://arxiv.org/abs/1804.06065
http://arxiv.org/abs/1804.06065
Autor:
Makoto Watanabe, Yumiko Oasa, Hiroshi Akitaya, Hideyuki Izumiura, Mizuki Isogai, Katsura Matsumoto, Tomoki Morokuma, Michitoshi Yoshida, Jun Takahashi, Ryo Miyanoshita, Keiichi Maeda, Hidekazu Hanayama, Koji S. Kawabata, Takahiro Nagayama, Kazunari Masumoto, Takahiro Ui, Ryosuke Itoh, Toshihiro Omodaka, Makoto Uemura, Issei Ueno, Nozomu Tominaga, Masayuki Yamanaka, Yoshihiko Saito, Masaomi Tanaka, Katsutoshi Takaki, Akira Arai, Rikako Ono, Daisaku Nogami, Tatsuya Nakaoka, Nobuharu Ukita, Takashi Nagao, Kazuhiro Sekiguchi, Miho Kawabata, Daisuke Kuroda, Ryo Noguchi, Kenshi Yanagisawa, Satoshi Honda
Publikováno v:
Publications of the Astronomical Society of Japan. 68(Number 5)
We present extensively dense observations of the super-Chandrasekhar supernova (SC SN) candidate SN 2012dn from $-11$ to $+140$ days after the date of its $B$-band maximum in the optical and near-infrared (NIR) wavelengths conducted through the OISTE
Autor:
Michitoshi Yoshida, Tatsuya Harao, Mahito Sasada, Takuya Yamashita, Hisashi Miyamoto, Yuki Moritani, Katsutoshi Takaki, Issei Ueno, Ryosuke Itoh, T. Urano, Koji S. Kawabata, Takashi Ohsugi, K. Sakimoto, Hiroshi Akitaya, Hidehiko Nakaya, Takahiro Ui, Asami Nakashima, Rieko Matsui, Y. Ohashi
Publikováno v:
SPIE Proceedings.
We have developed an optical and near-infrared instrument HONIR (Hiroshima Optical and Near-InfraRed camera) with imaging, spectroscopy, and polarimetry capabilities in two (one optical and one near-infrared) bands simultaneously. Imaging capability
Autor:
Michitoshi Yoshida, Shigeyuki Sako, Takahiro Ui, Yuki Moritani, Hiroshi Akitaya, Yasuhito Hashiba, Issei Ueno, Takuya Yamashita, Takashi Ohsugi, Hikaru Nakao, Katsutoshi Takaki, T. Urano, Koji S. Kawabata, Ryosuke Itoh, Hidehiko Nakaya
Publikováno v:
SPIE Proceedings.
We developed a new readout system for the near-infrared detector VIRGO-2K (2kx2k HgCdTe array) installed in the optical-infrared simultaneous camera, HONIR, for the 1.5 m Kanata telescope at Higashi-Hiroshima observatory. The main goal of this develo
Autor:
Y. Kanda, Osamu Hashimoto, Yuki Moritani, Akihiko Fukui, Masayuki Yamanaka, Hisashi Miyamoto, Y. Ohashi, Katsutoshi Takaki, K. Yanagisawa, Takahiro Ui, Tatsuya Nakaoka, Akira Arai, Takuya Yamashita, Ken'ichi Nomoto, T. Ohsugi, Tatsuya Harao, Daisaku Nogami, Miho Kawabata, Hitoshi Sato, Michitoshi Yoshida, K. Kawaguchi, Nao Suzuki, Nobuyuki Kawai, Yasushi Fukazawa, K. Sakimoto, Shingo Chiyonobu, Issei Ueno, Kazunari Masumoto, Keiichi Maeda, Hidehiko Nakaya, Mahito Sasada, Makoto Uemura, Masaomi Tanaka, Ryosuke Itoh, Koji Mori, Hideyuki Izumiura, T. Urano, Hiroshi Akitaya, Osamu Nagae, Hiroyuki Tanaka, Koji S. Kawabata, T. Komatsu, Daisuke Kuroda, Satoshi Honda, Koji Takata, Katsura Matsumoto, Risako Matsui, Nana Ebisuda, Asami Nakashima
We presented optical and near-infrared multi-band linear polarimetry of the highly reddened Type Ia SN~2014J appeared in M82. SN~2014J exhibits large polarization at shorter wavelengths, e.g., $4.8$\% in $B$ band, and the polarization decreases rapid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bb45c9be90409a2cd112f289591e960
http://arxiv.org/abs/1407.0452
http://arxiv.org/abs/1407.0452
Autor:
Hiroshi Akitaya, Makoto Watanabe, Koji S. Kawabata, Shin-ichiro Okumura, Kazuhiro Sekiguchi, Seitaro Urakawa, Takashi Ohsugi, Yasushi Fukazawa, Ryo Miyanoshita, Daisuke Kuroda, Yumiko Oasa, Nobuyuki Kawai, Masayuki Yamanaka, Hideyuki Izumiura, Katsutoshi Takaki, Ryosuke Itoh, Issei Ueno, Yoshihiko Saito, Makoto Uemura, Yu Saito, Takafumi Hori, Mizuki Isogai, Akira Arai, Takahiro Nagayama, Tomoki Morokuma, Chikako Nakata, Yoshinori Yonekura, Tomohito Ohshima, Yuhei Takagi, Masahiko Hayashi, Michitoshi Yoshida, Jun Takahashi, Yuki Moritani, Yuhei Abe, Yasuyuki T. Tanaka, Yukihiro Takahashi, Mahito Sasada, Jumpei Nakamoto
CTA 102, classified as a flat spectrum radio quasar at z=1.037, produced exceptionally bright optical flare in 2012 September. Following Fermi-LAT detection of enhanced gamma-ray activity, we densely monitored this source in the optical and near-infr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::756378104bd44efb12fb38d1d2fb6229
http://arxiv.org/abs/1304.2453
http://arxiv.org/abs/1304.2453
Autor:
Keiichi Maeda, Ryosuke Itoh, Takahiro Ui, T. Urano, Koji S. Kawabata, Takashi Ohsugi, Yuki Moritani, K. Kinugasa, Masayuki Yamanaka, Katsutoshi Takaki, Mahito Sasada, Ken'ichi Nomoto, Hiroshi Akitaya, Michitoshi Yoshida, Makoto Uemura, Masaomi Tanaka, Issei Ueno, Yasushi Fukazawa
We present a set of photometric and spectroscopic observations of a bright Type Ib supernova SN 2012au from -6d until ~+150d after maximum. The shape of its early R-band light curve is similar to that of an average Type Ib/c supernova. The peak absol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf1f7d4230001e06fb59033ff622b83f
Autor:
Takahiro Ui, Hiroshi Akitaya, Yuki Moritani, Michitoshi Yoshida, Takuya Yamashita, Takashi Ohsugi, Tatsuya Harao, Asami Nakashima, Hisashi Miyamoto, Risako Matsui, K. Sakimoto, Issei Ueno, Mahito Sasada, Hidehiko Nakaya, Katsutoshi Takaki, T. Urano, Koji S. Kawabata, Ryosuke Itoh
Publikováno v:
SPIE Proceedings.
We have developed an optical-infrared instrument HONIR (Hiroshima Optical and Near-InfraRed camera) to be attached to the 1.5-m Kanata telescope at Higashi-Hiroshima Observatory, Hiroshima University. HONIR is a three color (one optical and two near-
Autor:
Michitoshi Yoshida, Gamal B. Ali, Jun Takahashi, Takahiro Nagayama, Daisaku Nogami, Issei Ueno, Hidekazu Hanayama, Hideyuki Izumiura, Hiroshi Akitaya, Takahiro Ui, Hikaru Nakao, Yoshihiko Saito, Mizuki Isogai, Akihito Ozaki, Masaomi Tanaka, Ko Hamamoto, Nozomu Tominaga, Ryo Miyanoshita, A. Essam, Makoto Watanabe, Keiichi Maeda, Yumiko Oasa, Akihiko Fukui, Tomoki Morokuma, Masayuki Yamanaka, Ryosuke Itoh, Takashi Hattori, Katsutoshi Takaki, Akira Arai, Koji S. Kawabata, Kenshi Yanagisawa, Daisuke Kuroda, Kazuhiro Sekiguchi
Publikováno v:
The Astrophysical Journal. 806:191
We report observations of the Type Iax supernova (SN Iax) 2012Z at optical and near-infrared (NIR) wavelengths from immediately after the explosion until ?260 days after the maximum luminosity using the Optical and Infrared Synergetic Telescopes for
Autor:
Issei Ueno, Takahiro Ui, Alex C. Carciofi, Atsuo T. Okazaki, Hiroshi Akitaya, Yuki Moritani, Kensho Mori, Ryosuke Itoh, A. Imada, Katsutoshi Takaki, Nana Ebisuda, K. Kawaguchi
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We report on monitoring observations of the TeV gamma-ray binary HESS J0632+057, which were carried out to constrain the interaction between the Be circumstellar disk and the compact object of unknown nature, and provide for the first time high-dispe