Direct Imaging of the Massive Black Hole, SgrA^*(Session 5 : Evidence for Giant Black Holes)

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概要

• 論文の詳細を見る

• Imaging the vicinity of black hole is one of the ultimate goals of VLBI astronomy. The closest massive black hole, SgrA^*, located at Galactic center is the leading candidate for suchobservations. Combined with recent VLBI recording technique and sub-mm radio engineering, we now have the sufficient sensitivity for the observations. We here show performancesimulations of sub-mm VLBI arrays for imaging SgrA^*. An excellent image is obtained from a sub-mm VLBI array in southern hemisphere like the configuration of VLBA. We also note that even with a small array, we can estimate the shadow size and then the mass of black hole from visibility analysis. Now, if only constructing a sub-mm VLBI array in southern hemisphere, we can unveil the black hole environments of SgrA^*.

• 理論物理学刊行会の論文
• 2004-11-15

著者

• KAMENO Seiji

  National Astronomical Observatory

• Shen Zhi-qiang

  Shanghai Astronomical Observatory Chinese Academy Of Sciences

• Shen Z‐q

  Shanghai Astronomical Observatory Chinese Academy Of Sciences

• MIYOSHI Makoto

  National Astronomical Observatory

• ISHITSUKA Jose

  National Astronomical Observatory Japan

• HORIUCHI Shinji

  Center for Astrophysics and Supercomputing, Swinburne University of Technology

• Kameno S

  Faculty Of Science Kagoshima University

• Miyoshi M

  Ngk Insulators Ltd.

• Mutoh Mutsumi

  Physics Department Science University Of Tokyo

• Horiuchi Shinji

  Centre For Astrophysics And Supercomputing Swinburne University Of Technology

• Shen Zhi-qiang

  Shanghai Astronomical Observatory

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