Chandra and FUSE spectroscopy of the hot bare stellar core H 1504+65 ⋆

  title={Chandra and FUSE spectroscopy of the hot bare stellar core H 1504+65 ⋆},
  author={Klaus Werner and Thomas Rauch and Martin A. Barstow and Jeffrey W. Kruk},
  journal={Astronomy and Astrophysics},
H 1504+65 is an extremely hot hydrogen-deficient white dwarf with an effective temperature close to 200 000 K. We present new FUV and soft X-ray spectra obtained with FUSE and Chandra, which confirm that H 1504+65 has an atmosphere primarily composed of carbon and oxygen. The Chandra LETG spectrum (60 - 160A) shows a wealth of photospheric absorp- tion lines from highly ionized oxygen, neon, and - for the firs t time identified in this star - magnesium and suggests relati vely high Ne and Mg… 
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  • Physics
    Proceedings of the International Astronomical Union
  • 2011
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