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Near infrared flares of Sagittarius A* - Importance of near infrared polarimetry
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SYSNO ASEP 0337974 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Near infrared flares of Sagittarius A* - Importance of near infrared polarimetry Author(s) Zamaninasab, M. (DE)
Eckart, A. (DE)
Witzel, G. (DE)
Dovčiak, Michal (ASU-R) RID, ORCID
Karas, Vladimír (ASU-R) RID, ORCID
Schoedel, R. (DE)
Giessuebel, R. (DE)
Bremer, M. (DE)
García-Marín, M. (DE)
Kunneriath, D. (DE)
Muzic, K. (DE)
Nishiama, S. (JP)
Sabha, N. (DE)
Straubmeier, C. (DE)
Zensus, A. (DE)Number of authors 15 Source Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 510, - (2010), A3-1-A3-25Number of pages 25 s. Language eng - English Country FR - France Keywords astrophysics Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects GA205/07/0052 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000274305100004 DOI 10.1051/0004-6361/200912473 Annotation We probe the existence of a correlation between the modulations of the observed flux density light curves and changes in polarimetric data. Furthermore, we confirm that the same correlation is also predicted by the hot spot model. Correlations between intensity and polarimetric parameters of the observed light curves as well as a comparison of predicted and observed light curve features through a pattern recognition algorithm result in the detection of a signature of orbiting matter under the influence of strong gravity. This pattern is detected statistically significant against randomly polarized red noise. Expected results from future observations of VLT interferometry like GRAVITY experiment are also discussed. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2010
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