X-ray emission from wind blown interstellar bubbles. IV. ROSAT HRI observations of NGC 6888

Details X-ray emission from wind blown interstellar bubbles. IV. ROSAT HRI observations of NGC 6888 X-ray emission from wind blown interstellar bubbles. IV. ROSAT HRI observations of NGC 6888

Aug 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...391..287w&link_type=abstract

Astronomy and Astrophysics, v.391, p.287-293 (2002)

Astronomy and Astrophysics

Astrophysics

7

Ism: Bubbles, Ism: Individual Objects: \Object{Ngc 6888

Scientific paper

We have observed the stellar wind blown bubble NGC 6888 with the ROSAT HRI. A map and a catalogue of X-ray filaments is derived, the typical filament being a few 0.1 pc in extent with an HRI count rate of a few 10-4 s-1. We show that this filamentary structure can qualitatively be modelled as local count rate enhancements due to denser gas near evaporating cool clumps which in turn are seen in the optical and probably are produced by instabilities after the passage of the primary shock front of the expanding bubble.

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