Search Results - "Tsumura, Kohji"

Estimating survival probability using the terrestrial extinction history for the search for extraterrestrial life by Tsumura, Kohji

“…Several exoplanets have been discovered to date, and the next step is the search for extraterrestrial life. However, it is difficult to estimate the number of…”
Get full text

Is the infrared background excess explained by the isotropic zodiacal light from the outer solar system? by Tsumura, Kohji

“…Abstract This paper investigates whether an isotropic zodiacal light from the outer solar system can account for the detected background excess in the…”
Get full text

Fluctuation of the background sky in the Hubble Extremely Deep Field (XDF) and its origin by Matsumoto, Toshio, Tsumura, Kohji

“…Abstract We performed a fluctuation analysis of the Hubble Extremely Deep Field (XDF) at four optical wavelength bands and found large fluctuations that are…”
Get full text

New Spectral Evidence of an Unaccounted Component of the Near-infrared Extragalactic Background Light from the CIBER by Matsuura, Shuji, Arai, Toshiaki, Bock, James J., Cooray, Asantha, Korngut, Phillip M., Kim, Min Gyu, Lee, Hyung Mok, Lee, Dae Hee, Levenson, Louis R., Matsumoto, Toshio, Onishi, Yosuke, Shirahata, Mai, Tsumura, Kohji, Wada, Takehiko, Zemcov, Michael

“…The extragalactic background light (EBL) captures the total integrated emission from stars and galaxies throughout the cosmic history. The amplitude of the…”
Get full text

NIRS3: The Near Infrared Spectrometer on Hayabusa2 by Iwata, Takahiro, Kitazato, Kohei, Abe, Masanao, Ohtake, Makiko, Arai, Takehiko, Arai, Tomoko, Hirata, Naru, Hiroi, Takahiro, Honda, Chikatoshi, Imae, Naoya, Komatsu, Mutsumi, Matsunaga, Tsuneo, Matsuoka, Moe, Matsuura, Shuji, Nakamura, Tomoki, Nakato, Aiko, Nakauchi, Yusuke, Osawa, Takahito, Senshu, Hiroki, Takagi, Yasuhiko, Tsumura, Kohji, Takato, Naruhisa, Watanabe, Sei-ichiro, Barucci, Maria Antonietta, Palomba, Ernesto, Ozaki, Masanobu

“…NIRS3: The Near Infrared Spectrometer is installed on the Hayabusa2 spacecraft to observe the target C-type asteroid 162173 Ryugu at near infrared wavelengths…”
Get full text

On the origin of near-infrared extragalactic background light anisotropy by Zemcov, Michael, Smidt, Joseph, Arai, Toshiaki, Bock, James, Cooray, Asantha, Gong, Yan, Kim, Min Gyu, Korngut, Phillip, Lam, Anson, Lee, Dae Hee, Matsumoto, Toshio, Matsuura, Shuji, Nam, Uk Won, Roudier, Gael, Tsumura, Kohji, Wada, Takehiko

“…Extragalactic background light (EBL) anisotropy traces variations in the total production of photons over cosmic history and may contain faint, extended…”
Get full text

Ultraviolet to optical diffuse sky emission as seen by the Hubble Space Telescope Faint Object Spectrograph by Kawara, Kimiaki, Matsuoka, Yoshiki, Sano, Kei, Brandt, Timothy D., Sameshima, Hiroaki, Tsumura, Kohji, Oyabu, Shinki, Ienaka, Nobuyuki

“…Abstract We present an analysis of the blank-sky spectra observed with the Faint Object Spectrograph on board the Hubble Space Telescope. We study the diffuse…”
Get full text

Low-Resolution Spectrum of the Extragalactic Background Light with the AKARI InfraRed Camera by Tsumura, Kohji, Matsumoto, Toshio, Matsuura, Shuji, Sakon, Itsuki, Wada, Takehiko

“…The Extragalactic Background Light (EBL) as integrated light from outside of our Galaxy includes information about the early universe and the Dark Ages. We…”
Get full text

Low-Resolution Spectrum of the Diffuse Galactic Light and 3.3μm PAH Emission with the AKARI InfraRed Camera by Tsumura, Kohji, Matsumoto, Toshio, Matsuura, Shuji, Sakon, Itsuki, Tanaka, Masahiro, Wada, Takehiko

“…We first obtained the spectrum of the diffuse Galactic light (DGL) at general interstellar space in the $1.8-5.3 \mu \textrm m $ wavelength region with the…”
Get full text

Large angular scale fluctuations of near-infrared extragalactic background light based on the IRTS observations by Kim, Min Gyu, Matsumoto, Toshio, Lee, Hyung Mok, Jeong, Woong-Seob, Tsumura, Kohji, Seo, Hyunjong, Tanaka, Masahiro

“…Abstract We measure the spatial fluctuations of the Near-Infrared Extragalactic Background Light (NIREBL) from 2° to 20° in angular scale at the 1.6 and $2.2\,…”
Get full text

Heliocentric distance dependence of zodiacal light observed by Hayabusa2 by Tsumura, Kohji, Matsuura, Shuji, Sano, Kei, Iwata, Takahiro, Yano, Hajime, Kitazato, Kohei, Takimoto, Kohji, Yamada, Manabu, Morota, Tomokatsu, Kouyama, Toru, Hayakawa, Masahiko, Yokota, Yasuhiro, Tatsumi, Eri, Matsuoka, Moe, Sakatani, Naoya, Honda, Rie, Kameda, Shingo, Suzuki, Hidehiko, Cho, Yuichiro, Yoshioka, Kazuo, Ogawa, Kazunori, Shirai, Kei, Sawada, Hirotaka, Sugita, Seiji

“…Zodiacal light (ZL) is sunlight scattered by interplanetary dust particles (IDPs) at optical wavelengths. The spatial distribution of IDPs in the Solar System…”
Get full text

Organized Autotelescopes for Serendipitous Event Survey (OASES): Design and performance by Arimatsu, Ko, Tsumura, Kohji, Ichikawa, Kohei, Usui, Fumihiko, Ootsubo, Takafumi, Kotani, Takayuki, Sarugaku, Yuki, Wada, Takehiko, Nagase, Koichi, Watanabe, Jun-ichi

“…Abstract Organized Autotelescopes for Serendipitous Event Survey (OASES) is an optical observation project that aims to detect and investigate stellar…”
Get full text

Three case reports on the cometary plasma tail in the historical documents by Hayakawa, Hisashi, Fujii, Yuri I., Murata, Koji, Mitsuma, Yasuyuki, Cheng, Yongchao, Nogami, Nagatoshi, Ichikawa, Kohei, Sano, Hidetoshi, Tsumura, Kohji, Kawamoto, Yukiko, Nishino, Masaki N.

“…Cometary tails visually manifest the solar wind and became an initial hint for its discovery. While the solar wind is being directly monitored with satellites,…”
Get full text

Low-Resolution Spectrum of the Zodiacal Light with the AKARI InfraRed Camera by Tsumura, Kohji, Matsumoto, Toshio, Matsuura, Shuji, Pyo, Jeonghyun, Sakon, Itsuki, Wada, Takehiko

“…We present near- and mid-infrared zodiacal light spectra obtained with the AKARI Infra-Red Camera (IRC). A catalog of 278 spectra of the diffuse sky covering a…”
Get full text

MIRIS observation of near-infrared diffuse Galactic light by Onishi, Yosuke, Sano, Kei, Matsuura, Shuji, Jeong, Woong-Seob, Pyo, Jeonghyun, Kim, Il-Jong, Seo, Hyun Jong, Han, Wonyong, Lee, DaeHee, Moon, Bongkon, Park, Wonkee, Park, Younsik, Kim, MinGyu, Matsumoto, Toshio, Matsuhara, Hideo, Nakagawa, Takao, Tsumura, Kohji, Shirahata, Mai, Arai, Toshiaki, Ienaka, Nobuyuki

“…Abstract We report near-infrared (IR) observations of high Galactic latitude clouds to investigate diffuse Galactic light (DGL), which is starlight scattered…”
Get full text

ERRATUM: “ SUZAKU OBSERVATION OF THE BLACK HOLE BINARY 4U 1630-47 IN THE VERY HIGH STATE” (2014, ApJ, 790, 20) by Hori, Takafumi, Ueda, Yoshihiro, Shidatsu, Megumi, Kawamuro, Taiki, Kubota, Aya, Done, Chris, Nakahira, Satoshi, Tsumura, Kohji, Shirahata, Mai, Nagayama, Takahiro

Get full text

Modelling the optical energy profile of the 2021 October Jupiter impact flash by Arimatsu, Ko, Tsumura, Kohji, Usui, Fumihiko, Watanabe, Jun-ichi

“…ABSTRACT We have conducted numerical simulations to reproduce the observed optical energy profile of the 2021 October 15 (ut) impact flash on Jupiter, which…”
Get full text

REANALYSIS OF THE NEAR-INFRARED EXTRAGALACTIC BACKGROUND LIGHT BASED ON THE IRTS OBSERVATIONS by Matsumoto, T., Kim, M. G., Pyo, J., Tsumura, K.

“…ABSTRACT We reanalyze data of the near-infrared background taken by IRTS using up-to-date observational results of zodiacal light (ZL), integrated star light,…”
Get full text

Probing Intra-Halo Light with Galaxy Stacking in CIBER Images by Cheng, Yun-Ting, Arai, Toshiaki, Bangale, Priyadarshini, Bock, James J., Chang, Tzu-Ching, Cooray, Asantha, Feder, Richard M., Korngut, Phillip M., Lee, Dae Hee, Liu, Lunjun, Matsumoto, Toshio, Matsuura, Shuji, Nguyen, Chi H., Sano, Kei, Tsumura, Kohji, Zemcov, Michael

“…Abstract We study the stellar halos of 0.2 ≲ z ≲ 0.5 galaxies with stellar masses spanning M * ∼ 10 10.5 to 10 12 M ⊙ (approximately L * galaxies at this…”
Get full text

Detection of an Extremely Large Impact Flash on Jupiter by High-cadence Multiwavelength Observations by Arimatsu, Ko, Tsumura, Kohji, Usui, Fumihiko, Watanabe, Jun-ichi

“…Abstract We report the detection of an optical impact flash on Jupiter on 2021 October 15 by a dedicated telescope, Planetary ObservatioN Camera for Optical…”
Get full text