Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Yamauchi, Chisato"'
Autor:
Yoshino, Akira, Yamauchi, Chisato
We investigate Box/Peanut and bar structures in image data of edge-on and face-on nearby galaxies taken from SDSS (Sloan Digital Sky Survey) to present catalogues containing the surface brightness parameters and the morphology classification. About 1
Externí odkaz:
http://arxiv.org/abs/1410.8262
Autor:
ヤマウチ, チサト, Yamauchi, Chisato
名古屋大学博士学位論文 学位の種類:博士(理学) (課程) 学位授与年月日 平成17年3月25日
Externí odkaz:
http://hdl.handle.net/2237/14487
Autor:
Toba, Yoshiki, Oyabu, Shinki, Matsuhara, Hideo, Malkan, Matthew A., Gandhi, Poshak, Nakagawa, Takao, Isobe, Naoki, Shirahata, Mai, Oi, Nagisa, Ohyama, Youichi, Takita, Satoshi, Yamauchi, Chisato, Yano, Kenichi
In this work, we investigate the dependence of the covering factor (CF) of active galactic nuclei (AGNs) (i) on the mid-infrared (MIR) luminosity and (ii) on the redshift. We constructed 12- and 22-micron luminosity functions (LFs) at 0.006 < z < 0.3
Externí odkaz:
http://arxiv.org/abs/1404.4937
Autor:
Toba, Yoshiki, Oyabu, Shinki, Matsuhara, Hideo, Malkan, Matthew A., Ishihara, Daisuke, Wada, Takehiko, Ohyama, Youichi, Takita, Satoshi, Yamauchi, Chisato
We present the 9 and 18 micron luminosity functions (LFs) of galaxies at 0.006 < z < 0.8 (with an average redshift of ~ 0.04) using the AKARI mid-infrared all-sky survey catalog. We selected 243 galaxies at 9 micron and 255 galaxies at 18 micron from
Externí odkaz:
http://arxiv.org/abs/1308.2367
Autor:
Goto, Tomotsugu, Utsumi, Yousuke, Walsh, Jeremy R., Hattori, Takashi, Miyazaki, Satoshi, Yamauchi, Chisato
We have taken a deep, moderate-resolution Keck/Deimos spectra of QSO, CFHQS2329, at z=6.4. At the wavelength of Lya, the spectrum shows a spatially-extended component, which is significantly more extended than a stellar spectrum, and also a continuum
Externí odkaz:
http://arxiv.org/abs/1112.3656
Autor:
Yamauchi, Chisato
We develop a software kit called "2MASS Catalog Server Kit" to easily construct a high-performance database server for the 2MASS Point Source Catalog (includes 470,992,970 objects) and several all-sky catalogs. Users can perform fast radial search an
Externí odkaz:
http://arxiv.org/abs/1110.4206
Understanding the cosmic re-ionization is one of the key goals of the modern observational cosmology. High redshift QSO spectra can be used as background light sources to measure absorption by intervening neutral hydrogen. We investigate neutral hydr
Externí odkaz:
http://arxiv.org/abs/1104.1636
Autor:
Goto, Tomotsugu, Arnouts, Stephane, Malkan, Matthew, Takagi, Toshinobu, Inami, Hanae, Pearson, Chris, Wada, Takehiko, Matsuhara, Hideo, Yamauchi, Chisato, Takeuchi, Tsutomu T., Nakagawa, Takao, Oyabu, Shinki, Ishihara, Daisuke, Sanders, David B., Floc'h, Emeric Le, Lee, Hyung Mok, Jeong, Woong-Seob, Serjeant, Stephen, Sedgwick, Chris
By cross-correlating AKARI infrared (IR) sources with the SDSS galaxies, we identified 2357 infrared galaxies with a spectroscopic redshift. This is not just one of the largest samples of local IR galaxies, but AKARI provides crucial FIR bands (9, 18
Externí odkaz:
http://arxiv.org/abs/1102.3430
Autor:
Goto, Tomotsugu, Arnouts, Stephane, Inami, Hanae, Matsuhara, Hideo, Pearson, Chris, Takeuchi, Tsutomu T., Floc'h, Emeric Le, Takagi, Toshinobu, Wada, Takehiko, Nakagawa, Takao, Oyabu, Shinki, Ishihara, Daisuke, Lee, Hyung Mok, Jeong, Woong-Seob, Yamauchi, Chisato, Serjeant, Stephen, Sedgwick, Chris, Treister, Ezequiel
Infrared (IR) luminosity is fundamental to understanding the cosmic star formation history and AGN evolution. The AKARI IR space telescope performed all sky survey in 6 IR bands (9, 18, 65, 90, 140, and 160um) with 3-10 times better sensitivity than
Externí odkaz:
http://arxiv.org/abs/1008.0859
Autor:
Ishihara, Daisuke, Onaka, Takashi, Kataza, Hirokazu, Salama, Alberto, Alfageme, Carlos, Cassatella, Angelo, Cox, Nick, Garcia-Lario, Pedro, Stephenson, Craig, Cohen, Martin, Fujishiro, Naofumi, Fujiwara, Hideaki, Hasegawa, Sunao, Ita, Yoshifusa, Kim, Woojung, Matsuhara, Hideo, Murakami, Hiroshi, Muller, Thomas G., Nakagawa, Takao, Ohyama, Youichi, Oyabu, Shinki, Pyo, Jeonghyun, Sakon, Itsuki, Shibai, Hiroshi, Takita, Satoshi, Tanabe, Toshihiko, Uemizu, Kazunori, Ueno, Munetaka, Usui, Fumihiko, Wada, Takehiko, Watarai, Hiden ori, Yamamura, Issei, Yamauchi, Chisato
Context : AKARI is the first Japanese astronomical satellite dedicated to infrar ed astronomy. One of the main purposes of AKARI is the all-sky survey performed with six infrared bands between 9 and 200um during the period from 2006 May 6 to 2007 Aug
Externí odkaz:
http://arxiv.org/abs/1003.0270