Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Murata, Kazumi"'
Autor:
Murata, Kazumi, Takeuchi, Tsutomu T.
We propose a regularization-based deblurring method that works efficiently for galaxy images. The spatial resolution of a ground-based telescope is generally limited by seeing conditions and much worse than space-based telescopes. This circumstance h
Externí odkaz:
http://arxiv.org/abs/2208.10656
Autor:
Tanaka, Masayuki, Ikeda, Hiroyuki, Murata, Kazumi, Takita, Satoshi, Mineo, Sogo, Koike, Michitaro, Okura, Yuki, Harasawa, Sumiko
We present the launch of the Hyper Suprime-Cam Legacy Archive (HSCLA), a public archive of processed, science-ready data from Hyper Suprime-Cam (HSC). HSC is an optical wide-field imager installed at the prime focus of the Subaru Telescope and has be
Externí odkaz:
http://arxiv.org/abs/2101.05463
Autor:
Poliszczuk, Artem, Solarz, Aleksandra, Pollo, Agnieszka, Bilicki, Maciej, Takeuchi, Tsutomu T., Matsuhara, Hideo, Goto, Tomotsugu, Takagi, Toshinobu, Wada, Takehiko, Ohyama, Yoichi, Hanami, Hitoshi, Miyaji, Takamitsu, Oi, Nagisa, Malkan, Matthew, Murata, Kazumi, Kim, Helen, Tello, Jorge Díaz
Publikováno v:
Publications of the Astronomical Society of Japan, Volume 71, Issue 3, June 2019, 65
The aim of this work is to create a new catalog of reliable AGN candidates selected from the AKARI NEP-Deep field. Selection of the AGN candidates was done by applying a fuzzy SVM algorithm, which allows to incorporate measurement uncertainties into
Externí odkaz:
http://arxiv.org/abs/1902.04922
Autor:
Oi, Nagisa, Matsuhara, Hideo, Goto, Tomotsugu, Utsumi, Yousuke, Momose, Rieko, Huang, Ting-Chi, Toba, Yoshiki, Im, Myungshin, Lee, Hyung Mok, Kim, Seong Jin, Miyaji, Takamitsu, Krumpe, Mirko, Murata, Kazumi, Ohyama, Youichi, Serjeant, Steve, Pearson, Chris, Nakagawa, Takao, Wada, Takehiko, Takagi, Toshinobu, Matsuura, Shuji, Shogaki, Ayano, team, NEP
The AKARI North Ecliptic Pole (NEP) survey consists of two survey projects: NEP-Deep (0.5 sq.deg) and NEP-Wide (5.4 sq.deg), providing with tens of thousands of galaxies. A continuous filter coverage in the mid-infrared wavelengths (7, 9, 11, 15, 18
Externí odkaz:
http://arxiv.org/abs/1712.01843
We produce a catalogue of polycyclic aromatic hydrocarbon (PAH) 3.3 $\mu$m, Br$\alpha$ and infrared luminosity ($L$(IR)) of 412 local galaxies, and investigate a relation between these physical parameters. We measure the PAH 3.3 $\mu$m and Br$\alpha$
Externí odkaz:
http://arxiv.org/abs/1707.01652
Revised calibration for near- and mid-infrared images from ~4000 pointed observations with AKARI/IRC
Autor:
Egusa, Fumi, Usui, Fumihiko, Murata, Kazumi, Yamashita, Takuji, Yamamura, Issei, Onaka, Takashi
The Japanese infrared astronomical satellite AKARI performed ~4000 pointed observations for 16 months until the end of 2007 August, when the telescope and instruments were cooled by liquid Helium. Observation targets include solar system objects, Gal
Externí odkaz:
http://arxiv.org/abs/1512.05046
Publikováno v:
A&A 581, A114 (2015)
We study the environmental dependence of the strength of polycyclic aromatic hydrocarbon (PAH) emission by AKARI observations of RX J0152.7-1357, a galaxy cluster at z=0.84. PAH emission reflects the physical conditions of galaxies and dominates 8 um
Externí odkaz:
http://arxiv.org/abs/1507.00094
Autor:
Oi, Nagisa, Matsuhara, Hideo, Murata, Kazumi, Goto, Tomotsugu, Wada, Takehiko, Takagi, Toshinobu, Ohyama, Youichi, Malkan, Matthew, Im, Myungshin, Shim, Hyunjin Shim, Serjeant, Stephen, Pearson, Chris
Aims. We present an 8-band (u*, g', r', i', z', Y, J, Ks) optical to NIR deep photometric catalog based on the observations made with MegaCam and WIRCam at CFHT, and compute photometric redshifts, zp in the North Ecliptic Pole (NEP) region. Our catal
Externí odkaz:
http://arxiv.org/abs/1403.7934
Autor:
Karouzos, Marios, Im, Myungshin, Trichas, Markos, Ruiz, Angel, Goto, Tomo, Malkan, Matt, Jeon, Yiseul, Kim, Ji Hoon, Lee, Hyung Mok, Kim, Seongjin, Oi, Nagisa, Matsuhara, Hideo, Takagi, Toshinobu, Murata, Kazumi, Wada, Takehiko, Wada, Kensuke, Shim, Hyunjin, Hanami, Hitoshi, Serjeant, Stephen, White, Glenn J., Pearson, Chris, Ohyama, Youichi
Several lines of argument support the existence of a link between activity at the nuclei of galaxies, in the form of an accreting supermassive black hole, and star-formation activity in these galaxies. The exact nature of this link is still under deb
Externí odkaz:
http://arxiv.org/abs/1309.7353
Autor:
Murata, Kazumi
Publikováno v:
宇宙航空研究開発機構研究開発報告: 宇宙科学情報解析論文誌: 第9号 = JAXA Research and Development Report: Journal of Space Science Informatics Japan: Volume 9. :1-11
本研究では, 赤外線天文衛星「あかり」の遠赤外線サーベイヤー(FIS)で検出された近傍銀河の高解像度化を行った. FISの空間分解能は80 arcsec程度と非常に悪く, 近傍銀河のサイズ測定は難