Zobrazeno 1 - 10
of 501
pro vyhledávání: '"Horiuchi, Takashi"'
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:
Mizukoshi, Shoichiro, Minezaki, Takeo, Sameshima, Hiroaki, Kokubo, Mitsuru, Noda, Hirofumi, Kawamuro, Taiki, Yamada, Satoshi, Horiuchi, Takashi
This study investigates the properties of two gas structures of X-ray selected active galactic nuclei (AGNs), that is, dusty and dust-free gas components, by separating them with the line-of-sight dust extinction ($A_V$) and the neutral gas column de
Externí odkaz:
http://arxiv.org/abs/2406.08720
Autor:
Yamada, Satoshi, Kawamuro, Taiki, Mizumoto, Misaki, Ricci, Claudio, Ogawa, Shoji, Noda, Hirofumi, Ueda, Yoshihiro, Enoto, Teruaki, Kokubo, Mitsuru, Minezaki, Takeo, Sameshima, Hiroaki, Horiuchi, Takashi, Mizukoshi, Shoichiro
As an inaugural investigation under the X-ray Winds In Nearby-to-distant Galaxies (X-WING) program, we assembled a dataset comprising 132 active galactic nuclei (AGNs) spanning redshifts $z \sim 0$-$4$ characterized by blueshifted absorption lines in
Externí odkaz:
http://arxiv.org/abs/2405.02391
Autor:
Horiuchi, Takashi, Hanayama, Hidekazu, Ohishi, Masatoshi, Nakaoka, Tatsuya, Imazawa, Ryo, Kawabata, Koji S., Takahashi, Jun, Onozato, Hiroki, Saito, Tomoki, Yamanaka, Masayuki, Nogami, Daisaku, Tampo, Yusuke, Kojiguchi, Naoto, Ito, Jumpei, Shibata, Masaaki, Schramm, Malte, Oasa, Yumiko, Kanai, Takahiro, Oide, Kohei, Murata, Katsuhiro L., Hosokawa, Ryohei, Takamatsu, Yutaka, Imai, Yuri, Ito, Naohiro, Niwano, Masafumi, Takagi, Seiko, Ono, Tatsuharu, Kouprianov, Vladimir V.
This study provides the results of simultaneous multicolor observations for the first Visorsat (STARLINK-1436) and the ordinary Starlink satellite, STARLINK-1113 in the $U$, $B$, $V$, $g'$, $r$, $i$, $R_{\rm C}$, $I_{\rm C}$, $z$, $J$, $H$, and $K_s$
Externí odkaz:
http://arxiv.org/abs/2304.05191
Autor:
Noda, Hirofumi, Mineta, Taisei, Minezaki, Takeo, Sameshima, Hiroaki, Kokubo, Mitsuru, Kawamuro, Taiki, Yamada, Satoshi, Horiuchi, Takashi, Matsumoto, Hironori, Watanabe, Makoto, Morihana, Kumiko, Itoh, Yoichi, Kawabata, Koji S., Fukazawa, Yasushi
"Changing-look active galactic nuclei" (CLAGNs) are known to change their apparent types between types 1 and 2, usually accompanied by a drastic change in their luminosity on timescales of years. However, it is still unclear whether materials in broa
Externí odkaz:
http://arxiv.org/abs/2212.02731
Autor:
Hasegawa, Sunao, DeMeo, Francesca E., Marsset, Michael, Hanus, Josef, Avdellidou, Chrysa, Delbo, Marco, Bus, Schelte J., Hanayama, Hidekazu, Horiuchi, Takashi, Takir, Driss, Jehin, Emmanuel, Ferrais, Marin, Geem, Jooyeon, Im, Myungshin, Seo, Jinguk, Bach, Yoonsoo P., Jin, Sunho, Ishiguro, Masateru, Kuroda, Daisuke, Binzel, Richard P., Nakamura, Akiko M., Yang, Bin, Vernazza, Pierre
The surface of airless bodies like asteroids in the Solar System are known to be affected by space weathering. Experiments simulating space weathering are essential for studying the effects of this process on meteorite samples, but the problem is tha
Externí odkaz:
http://arxiv.org/abs/2209.09415
Autor:
Wakamatsu, Yasuyuki, Thorstensen, John R., Kojiguchi, Naoto, Isogai, Keisuke, Kimura, Mariko, Ohnishi, Ryuhei, Kato, Taichi, Itoh, Hiroshi, Sugiura, Yuki, Sumiya, Sho, Matsumoto, Hanami, Ito, Daiki, Nikai, Kengo, Akitaya, Hiroshi, Ishioka, Chihiro, Oide, Kohei, Kanai, Takahiro, Uzawa, Yoshinori, Oasa, Yumiko, Tordai, Tamás, Vanmunster, Tonny, Shugarov, Sergey Yu., Yamanaka, Masayuki, Sasada, Mahito, Takagi, Kengo, Nishinaka, Yuki, Yamazaki, Yuina, Otsubo, Ikki, Nakaoka, Tatsuya, Murata, Katsuhiro L., Ohsawa, Ryou, Morita, Masahiro, Ichiki, Makoto, Dufoer, Sjoerd, Mizutani, Masanori, Horiuchi, Takashi, Tozuka, Miyako, Takayama, Masaki, Ohshima, Tomohito, Saito, Tomoki, Dubovsky, Pavol A., Stone, Geoff, Miller, Ian, Nogami, Daisaku
We report photometric and spectroscopic observations of the eclipsing SU UMa-type dwarf nova ASASSN-18aan. We observed the 2018 superoutburst with 2.3 mag brightening and found the orbital period ($P_{\rm orb}$) to be 0.149454(3) d, or 3.59 hr. This
Externí odkaz:
http://arxiv.org/abs/2102.04104
We present the $g'$-, $R_{\rm c}$-, and $I_{\rm c}$-band magnitudes and associated colors of the Starlink's STARLINK-1113 (one of the standard Starlink satellites) and 1130 (Darksat) with a darkening treatment to its surface. By the 105 cm Murikabush
Externí odkaz:
http://arxiv.org/abs/2010.04655
Some fraction of narrow absorption lines are physically associated to the quasar/host-galaxy materials (i.e., intrinsic NALs) like those of BALs and mini-BALs. The relation between these three types of absorption lines has not been understood yet, ho
Externí odkaz:
http://arxiv.org/abs/2009.03818
Autor:
Wee, Jerrick, Blagorodnova, Nadejda, Penprase, Bryan Edward, Facey, Jett Pierce, Morioka, Taiga, Corbett, Hank, Barlow, Brad N., Kupfer, Thomas, Law, Nicholas M., Ratzloff, Jeffrey K., Howard, Ward S., Chavez, Ramses Gonzalez, Glazier, Amy, Soto, Alan Vasquez, Horiuchi, Takashi
We present optical and infrared photometry of the classical nova V906 Car, also known as Nova Car 2018 and ASASSN-18fv, discovered by ASASS-SN survey on 16.32 March 2018 UT (MJD 58193.0). The nova reached its maximum on MJD 58222.56 at $V_{\rm{max}}
Externí odkaz:
http://arxiv.org/abs/2006.14336