Extended X-ray emission from planetary nebulae

Details Extended X-ray emission from planetary nebulae Extended X-ray emission from planetary nebulae

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...264..623k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 264, no. 2, p. 623-628.

Astronomy and Astrophysics

Astronomy

67

Planetary Nebulae, Sky Surveys (Astronomy), X Ray Stars, Rosat Mission, X Ray Astronomy

Scientific paper

The first results from the ROSAT All Sky Survey on X-ray emission of PN are presented. X-ray emission from PN was detected. This is the case for NGC 6543, NGC 6853, A 12, NGC 4361, and LoTr 5. X-ray emission compatible with a point source was detected from BD+30 3639, but the spectral distribution of the X-ray photons indicates temperatures above 210 exp 6 K. It is argued that in all cases the central star of the PN can be excluded as the source of the observed X-ray emission.

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