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Signature of an Intermediate-Mass Black Hole in the Central Molecular Zone of Our Galaxy

  • Tomoharu Oka (a1), Reiko Mizuno (a1), Kodai Miura (a1) and Shunya Takekawa (a1)
Abstract
Abstract

The high-velocity compact cloud CO–0.40–0.22 was mapped in 22 molecular lines with the NRO 45 m radio telescope and the ASTE 10 m telescope. The map of each detected line shows that this cloud has a compact appearance (d≃3 pc) and extremely broad velocity width (Δ V≃100 km s−1). The representative position–velocity map along the major axis shows that CO–0.40–0.22 consists of an intense region with a shallow velocity gradient and a less intense high-velocity wing. This kinematical structure can be attributed to a gravitational kick to the molecular cloud caused by an invisible compact object with a mass of ~105 M . Its compactness and the absence of a counterpart at other wavelengths suggest that this massive object is an intermediate-mass black hole.

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P. Casella , G. Ponti , A. Patruno , et al. 2008, MNRAS, 387, 1707

S. Djorgovski & I. R. King 1984, ApJ, 277, L49

T. Ebisuzaki , J. Makino , T. G. Tsuru , et al. 2001, ApJ, 562, L19

G. Fabbiano 2006, ARA&A, 44, 323

J. Kormendy & L. C. Ho 2013, ARA&A, 51, 511

J. M. Miller , G. Fabbiano , M. C. Miller , & A. C. Fabian 2003, ApJ, 585, L37

T. Oka , T. Hasegawa , F. Sato , M. Tsuboi , & A. Miyazaki 1998, ApJS, 118, 455

T. Oka , G. J. White , T. Hasegawa , F. Sato , M. Tsuboi , & A. Miyazaki 1999, ApJ, 515, 249

T. Oka , Y. Onodera , M. Nagai , et al. 2012, ApJS, 201, 14

T. Oka , R. Mizuno , K. Miura , & S. Takekawa 2016, ApJ, 816, L7

A. E. Reines , G. R. Sivakoff , K. E. Johnson , & C. L. Brogan 2011, Nature, 470, 66

T. P. Roberts 2007, Ap&SS, 311, 203

A. C. Seth , R. van den Bosch , S. Mieske , et al. 2014, Nature, 513, 398

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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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