Chandra Observations of the Central Source of R Aqr

Details Chandra Observations of the Central Source of R Aqr Chandra Observations of the Central Source of R Aqr

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20510708n&link_type=abstract

American Astronomical Society Meeting 205, #107.08; Bulletin of the American Astronomical Society, Vol. 36, p.1525

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Scientific paper

Chandra X-ray observations in 2000.7 and 2004.0 of the central source of the R Aqr symbiotic system indicate significant temporal changes in the position and morphology of the emission over the 3.3 year time interval. The hard X-ray emission is primarily due to Fe K, and appears to have become more extended over the time period. The soft emission, below 1 keV, has become fainter and more elongated, suggesting the system is in the process of ejecting another jet. We present spectral fits to both the hard and the soft X-ray emission for both observed epochs, and discuss possible scenarios to explain these temporal changes. We acknowledge the support of NASA research grant G04-5030A and NASA contract NASA8-03060.

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