Simultaneous NIR/sub-mm observation of flare emission from SgrA

We report on a successful, simultaneous observation and modeling of the sub-millimeter to near-infrared flare emission of the Sgr A* counterpart associated with the super-massive black hole at the Galactic center. Our modeling is based on simultaneous observations that have been carried out on 03 Ju...

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Bibliographic Details
Published in:arXiv.org 2008-11
Main Authors: Eckart, A, Schoedel, R, Garcia-Marin, M, Witzel, G, Weiss, A, Baganoff, F K, Morris, M R, Bertram, T, Dovciak, M, Duschl, W J, Karas, V, Koenig, S, Krichbaum, T P, Krips, M, Kunneriath, D, Lu, R S, Markoff, S, Mauerhan, J, Meyer, L, Moultaka, J, Muzic, K, Najarro, F, J -U Pott, Schuster, K F, Sjouwerman, L O, Straubmeier, C, Thum, C, Vogel, S N, Wiesemeyer, H, Zamaninasab, M, Zensus, J A
Format: Article
Language:English
Subjects:
Adaptive control
Adaptive optics
Astronomical models
Bolometers
Delay
Emission
European Southern Observatory
Inspection
Light curve
Near infrared radiation
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Summary:We report on a successful, simultaneous observation and modeling of the sub-millimeter to near-infrared flare emission of the Sgr A* counterpart associated with the super-massive black hole at the Galactic center. Our modeling is based on simultaneous observations that have been carried out on 03 June, 2008 using the NACO adaptive optics (AO) instrument at the ESO VLT and the LABOCA bolometer at the APEX telescope. Inspection and modeling of the light curves show that the sub-mm follows the NIR emission with a delay of 1.5+/-0.5 hours. We explain the flare emission delay by an adiabatic expansion of the source components.
ISSN:2331-8422
DOI:10.48550/arxiv.0811.2753