Discovery of Extremely Embedded X-Ray Sources in the R Coronae Australis Star-forming Core

@article{Hamaguchi2005DiscoveryOE,
  title={Discovery of Extremely Embedded X-Ray Sources in the R Coronae Australis Star-forming Core},
  author={Kenji Hamaguchi and Michael F. Corcoran and Robert Petre and Nicholas E. White and Beate Stelzer and Ko Nedachi and Naoto Kobayashi and Alan T. Tokunaga},
  journal={The Astrophysical Journal},
  year={2005},
  volume={623},
  pages={291 - 301}
}
With the XMM-Newton and Chandra observatories, we detected two extremely embedded X-ray sources in the R Corona Australis (R CrA) star-forming core, near IRS 7. These sources, designated as XE and XW, have X-ray absorption columns of ~3 × 1023 cm-2 equivalent to AV ~ 180 mag. They are associated with the VLA centimeter radio sources 10E and 10W, respectively; XW is the counterpart of the near-infrared source IRS 7, whereas XE has no K-band counterpart above 19.4 mag. This indicates that XE is… 

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