Extended Submillimeter Emission of the Galactic Center and Near-infrared/submillimeter Variability of Its Supermassive Black Hole

0362920 - ASÚ 2012 RIV US eng J - Journal Article
García-Marín, M. - Eckart, A. - Weiss, A. - Witzel, G. - Bremer, M. - Zamaninasab, M. - Morris, M. - Schoedel, R. - Kunneriath, Devaky - Nishiyama, S. - Baganoff, F. K. - Dovčiak, Michal - Sabha, N. - Duschl, W.J. - Moultaka, J. - Karas, Vladimír - Najarro, F. - Muzic, K. - Straubmeier, C. - Vogel, S. N. - Krips, M. - Wiesemeyer, H.
Extended Submillimeter Emission of the Galactic Center and Near-infrared/submillimeter Variability of Its Supermassive Black Hole.
Astrophysical Journal. Roč. 738, č. 2 (2011), 158/1-158/19. ISSN 0004-637X. E-ISSN 1538-4357
Institutional research plan: CEZ:AV0Z10030501
Keywords : galactic centre
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 6.024, year: 2011

The innermost tens of parsecs of our Galaxy are characterized by the presence of molecular cloud complexes surrounding Sgr A*, the radiative counterpart of the supermassive black hole. Our study is based on NIR and submillimeter (sub-mm) observations. Using sub-mm maps, we describe the complex morphology of the molecular clouds and the circumnuclear disk, along with their masses (of order 10^5-10^6 M_s), and derive also the temperature and spectral index maps of the regions under study. We conclude that the average temperature of the dust is 14 ± 4 K.
Permanent Link: http://hdl.handle.net/11104/0199088