Mapping of the Cygnus Loop with EXOSAT

Details Mapping of the Cygnus Loop with EXOSAT Mapping of the Cygnus Loop with EXOSAT

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..481b&link_type=abstract

(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews

Astronomy and Astrophysics

Astronomy

2

Exosat Satellite, Supernova Remnants, X Ray Astronomy, Background Radiation, Electromagnetic Wave Filters

Scientific paper

Three 20,000-s observations were carried out with Exosat on three fields following the shock from the north to the east of the Cygnus Loop supernova remnant. Due to the softness of the source, most of the photons were collected with the LE package (CMA). For each exposure at least three filters (4000 A lexan, Al-Par, boron) were used in order to extract the maximum spectral information from the data. The few photons gathered with the boron filter are particularly important in that respect. The total count number collected with the other filters allows a statistically significant overall mapping of the fields with 1 x 1 arcmin pixels, but a better resolution can be achieved on the brightest areas of the Loop. Interesting details are revealed, such as bright small spots. Irregularities are also evident both in the shock front and inside the remnant, especially in the northern and eastern fields.

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