H Absorption in the Direction of CL 4
Abstract
Summary HI absorption has been observed in the direction of the compact radio source CL 4, near the centre of the Cygnus Loop, using the 5120 channel digital line backend of the Westerbork Synthesis Radio Telescope. The HI absorption data are consistent with an extragalactic origin of CL 4, however a galactic origin cannot be excluded. Key words: HI absorption - radio sources - supernova remnants.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1979
- Bibcode:
- 1979A&A....73L..17G