• Title/Summary/Keyword: Tokyo

Search Result 3,725, Processing Time 0.062 seconds

miniTAO/ANIR Paα SURVEY OF LOCAL LIRGs

  • Tateuchi, Ken;Motohara, Kentaro;Konishi, Masahiro;Takahashi, Hidenori;Kato, Natsuko;Uchimoto, Yuka K.;Toshikawa, Koji;Ohsawa, Ryou;Kitagawa, Yutaro;Yoshii, Yuzuru;Doi, Mamoru;Kohno, Kotaro;Kawara, Kimiaki;Tanaka, Masuo;Miyata, Takashi;Tanabe, Toshihiko;Minezaki, Takeo;Sako, Shigeyuki;Morokuma, Tomoki;Tamura, Yoichi;Aoki, Tsutomu;Soyano, Takeo;Tarusawa, Kenfichi;Koshida, Shintaro;Kamizuka, Takafumi;Nakamura, Tomohiko;Asano, Kentaro;Uchiyama, Mizuho;Okada, Kazushi;Ita, Yoshifusa
    • Publications of The Korean Astronomical Society
    • /
    • v.27 no.4
    • /
    • pp.297-298
    • /
    • 2012

  • ANIR (Atacama Near InfraRed camera) is a near infrared camera for the University of Tokyo Atacama 1m telescope, installed at the summit of Co. Chajnantor (5,640 m altitude) in northern Chile. The high altitude and extremely low water vapor (PWV = 0.5 mm) of the site enable us to perform observation of hydrogen $Pa{\alpha}$ emission line at $1.8751{\mu}m$. Since its first light observation in June 2009, we have been carrying out a $Pa{\alpha}$ narrow-band imaging survey of nearby luminous infrared galaxies (LIRGs), and have obtained $Pa{\alpha}$ for 38 nearby LIRGs listed in AKARI/FIS-PSC at the velocity of recession between 2,800 km/s and 8,100 km/s. LIRGs are affected by a large amount of dust extinction ($A_V$~ 3 mag), produced by their active star formation activities. Because $Pa{\alpha}$ is the strongest hydrogen recombination line in the infrared wavelength ranges, it is a good and direct tracer of dust-enshrouded star forming regions, and enables us to probe the star formation activities in LIRGs. We find that LIRGs have two star-forming modes. The origin of the two modes probably come from differences between merging stage and/or star-forming process.

  • https://doi.org/10.5303/PKAS.2012.27.4.297 인용 PDF KSCI

Interfacial ultrastructure of the AQ Bond Plus

  • Haruyama, Chikahiro;Amgai, Tetsuya;Sugiyama, Toshiko;Muto, Yoshitake;Takase, Yasuaki;Hirai, Yoshito
    • Proceedings of the KACD Conference
    • /
    • 2003.11a
    • /
    • pp.601-601
    • /
    • 2003

  • AQ Bond Plus has the function of self-etching priming adhesive, which can be applied by single coating without second coating, being different from conventional AQ bonds. Moreover, because the absorption range of light became wider, the bond can comply with any visible light curing units. Thus, the bond can produce an unified form between the dentine layer with impregnated resin of good quality and the thin and hard film characteristically. In this study, we investigated the junctional conditions of AQ Bond Plus, using a scanning electron microscope (SEM).(omitted)

  • PDF