X-ray emission from a bright arc in the Cygnus region.

Details X-ray emission from a bright arc in the Cygnus region. X-ray emission from a bright arc in the Cygnus region.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc..233a&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 233 - 234

Astronomy and Astrophysics

Astrophysics

1

Supernova Remnants: X Rays

Scientific paper

A three-degree long X-ray arc has been discovered in the ROSAT all-sky survey. The X-ray arc appears as a section of a ring of three-degree radius, convex towards north. The X-ray arc has a counterpart at radio frequencies and in the infrared. The IRAS maps indicate that the arc is complemented to a full ring. Hα and H I arcs appear along the north of the X-ray arc and their morphology suggests an association with the ring. The kinematic distance of the H I emission region is around 1 kpc implying a radius of the ring of 50 pc. The authors propose a supernova remnant expanding in a stellar wind cavity to explain the observations.

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