The Chandra X-ray view of the power sources in Cepheus A

Details The Chandra X-ray view of the power sources in Cepheus A The Chandra X-ray view of the power sources in Cepheus A

2009-09-30

arxiv.org/abs/0909.5592v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

7 pages, 6 figures, accepted for publication in A&A

Scientific paper

The central part of the massive star-forming region Cepheus A contains several radio sources which indicate multiple outflow phenomena, yet the driving sources of the individual outflows have not been identified. We present a high-resolution Chandra observation of this region that shows the presence of bright X-ray sources, consistent with active pre-main sequence stars, while the strong absorption hampers the detection of less luminous objects. A new source has been discovered located on the line connecting H_2 emission regions at the eastern and western parts of Cepheus A. This source could be the driving source of HH 168. We present a scenario relating the observed X-ray and radio emission.

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