National Aeronautics and Space Administration ROSAT

@inproceedings{Halpern2004NationalAA,
  title={National Aeronautics and Space Administration ROSAT},
  author={Jules P. Halpern and David J. Helfand and E. Cabr{\'e} de Mor{\'a}n},
  year={2004}
}
We continue to investigate recurrent claims that a substantial number of "normal" star-forming galaxies may have X-ray luminosities in the range 10~ ergs s". In this installment, we present new spectra of four such emission-line galaxies that were ambiguously classified in the Einstein Extended Medium Sensitivity Survey (EMSS), and find that they all have intermediate-type Seyfert nuclei as evidenced by broad components of their Ha lines. We argue that any of the remaining emission-line… CONTINUE READING

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