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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/032/01-02/0013-0018

    • Keywords

       

      Galaxy: center; galaxies: individual (Sagittarius A*); techniques: interferometric.

    • Abstract

       

      This paper reviews the recent progress in the study of the intra-day variability (IDV) of Sagittarius A* (Sgr A*), the best known supermassive black hole candidates with a dark mass concentration of 4 × 106 𝑀 at the center of our galaxy.

    • Author Affiliations

       

      Z. Q. Shen1 J. Li2 A. Miyazaki3 L. Huang1 4 R. J. Sault5 M. Miyoshi3 M. Tsuboi6 T. Tsutsumi3

      1. Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan RD, Shanghai 200030, China.
      2. Department of Astronomy, Nanjing University, Nanjing 210093, Jiangsu, China.
      3. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan.
      4. Academia Sinica, Institute of Astronomy and Astrophysics, Taipei 106, Taiwan.
      5. University of Melbourne, School of Physics, Parkville, Victoria 3052, Australia.
      6. Institute of Space and Astronautical Science, Sagamihara, Kanagawa 229-8510, Japan.
    • Dates

       
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