Survey and Cosmic X-ray Background

Publication

  • The ASCA Medium Sensitivity Survey (the GIS Catalog Project): Source Catalog X-Ray
    ( Y. Ueda, Y. Ishisaki, T. Takahashi , K. Makishima, T. Ohashi, 2001, Astrophysical Journal Suppl., pp. 1-52 )
  • Optical Identification of the ASCA Large Sky Survey
    ( M. Akiyama, K. Ohta, T. Yamada, N. Kashikawa, M. Yagi, W. Kawasaki, M. Sakano, T. Tsuru, Y. Ueda, T. Takahashi , I. Lehman, G. Hasinger, W. Voges, 2000, Astro Physical Journal, 532, 700 )
  • Results From the ASCA Large Sky Survey Nature of Faint X-Ray Sources and the Implications for the Origin of the CXB
    ( Y. Ueda, M. Akiyama, G. Hasinger, H. Inoue, Y. Ishisaki, K. Makishima, Y. Ogasaka, K. Ohta, M. Sakano, T. T. Takahashi Tsuru, W. Voges and T. Yamada, 2000, Adv.Space Res., 25, 839-844 )
  • ASCA Detection of Faint Sources in the Lockman Hole and its Comparison With ROSAT Sources
    ( Y. Ishisaki Y. Ogasaka Ueda, A. Yamashita, T. Takahashi, H. Inoue, K. Makishima, T. Miyaji and G. Hasinger, 2000, Adv.Space Res., 25, 845-848 )
  • The Hardest X-Ray Source Discovered in the ASCA Large Sky Survey: Implications to the Cosmic X-Ray Background
    ( M. Sakano, K. Koyama, T. Tsuru, H. Awaki, Y. Ueda, T. Takahashi, M. Akiyama, K. Ohta and T. Yamada, 2000, Adv.Space Res., 25, 849-852 )
  • The ASCA Medium-Sensitivity Survey (The GIS Catalog Project): Source Counts and Evidence for Emerging Population of Hard Sources
    ( Ueda Yoshihiro, Takahashi Tadayuki , Ishisaki Yoshitaka, Ohashi Takaya, and Makishima Kazuo 1999, Astro Physical Journal, 524, L11-L14 )
  • LOG N-LOG S Relations and Spectral Properties of Sources from the ASCA Large Sky Survey: Their Implications for the Origin of the Cosmic X-Ray Background (CXB)
    ( Y. Ueda , T. Takahashi , H. Inoue, T. Tsuru, M. Sakano, Y. Y. Ishisaki Ogasaka, K. Makishima, T. Yamada, M. Akiyama , K. Ohta 1999, Astro Physical Journal, 518, 656 )
  • Optical Identification of the Hardest X-Ray Source in the ASCA Large-Sky Survey
    ( M. Akiyama , K. Ohta, Y. Toru, M. Eracleous, J. P. Halpern, N. Kashikawa, M. Yagi, W. Kawasaki, M. Sakano, T. Tsuru, Y. Ueda , T. Takahashi 1998, Astro Physical Journal, 500, 173 )
  • A population of faint galaxies that contribute to the cosmic X-ray background
    ( Y. Ueda, T. Takahashi , H. Inoue, T. Tsuru, M. Sakano, Y. Y. Ishisaki Ogasaka, K. Makishima, T. Yamada , K. Ohta 1998, Nature, 391, 866 )
  • ASCA Medium Sensitive Survey --- ASCA GIS catalogue
    ( T. Takahashi , Y. Ueda, Y. Ishisaki, T. Ohashi , K. Makishima 1998, Astronomische Nachrichten, 319, 91 )
  • Spectra and large-scale isotropy of the cosmic X-ray background from ASCA observations
    ( Y. Ishisaki, Y. Ueda, T. Takahashi , H. Inoue, Y. Ogasaka , K. Makishima 1998, Astronomische Nachrichten, 319, 68 )
  • Optical follow-up observations of the ASCA Large Sky Survey
    ( M. Akiyama, K. Ohta, T. Yamada, Y. Ueda, T. Takahashi , M. Sakano, T. Tsuru , R. Boyle 1998, Astronomische Nachrichten, 319, 63 )
  • Sky surveys with ASCA -- Large Sky Survey"
    ( Y. Ueda, T. Takahashi , H. Inoue, T. Tsuru, M. Sakano, K. Ohta, Y. Ishisaki, Y. Ogasaka, K. Makishima , T. Yamada 1998 ( Astronomische Nachrichten, 319, 47 )
  • Sky surveys with ASCA --- Deep Sky Survey
    ( Y. Ogasaka, T. Kii, Y. Ueda, T. Takahashi , T. Yamada, H. Inoue, Y. Ishisaki, K. Ohta, T. Yamada, K. Makishima, T. Miyaji , G. Hasinger 1998, Astronomische Nachrichten, 319, 43 )