High-Resolution Observations of Centaurus A
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Date
2011
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Citation of Original Publication
Muller, Cornelia; Blanchard, J.; Bock, M.; Carpenter, B.; Dutka, M.; Furst, F.; Grafe, C.; Großberger, C.; Kadler, M.; Krauß, F.; Markowitz, A.; Ojha, R.; Perucho, M.; Pottschmidt, K.; Ros, E.; Rothschild, R.; Schulz, R.; Trustedt, J.; Wilms, J.; the TANAMI Collaboration; High-Resolution Observations of Centaurus A; Cosmos (2011); https://www.cosmos.esa.int/documents/332006/744654/CMueller_p.pdf
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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract
The closest active galaxy Centaurus A is regularly observed at milliarcsecond resolution within the framework of the Southern Hemisphere AGN monitoring program TANAMI. Additional multiwavelength observations up to gamma-ray energies allow us to study the time evolution of the broadband spectrum, providing crucial information on the emission mechanisms. We present recent TANAMI results on the
jet properties at sub-parsec scales including 1.) a possible indication of a connection between hard X-ray and jet activity, 2.) a potential downstream acceleration at sub-parsec scales, and 3.) a suggested jet-star interaction. Our XMMNewton and Suzaku monitoring campaign (2013-2014) will further help to shed light on the production sites of highenergy photons and allows us to disentangle emission components.