A new method for the study of the spatial variation of spectral indices.
Abstract
A new T-T plot method (Convolution Differential-Spectral-Index) for the study of spatial variation of spectral indices in radio astronomy is presented. The method is independent of DC offset and large scale variation of background in the maps which are used in spectral analysis. An example of the method as applied to the supernova remnant G78.2+2.1 is also given.
- Publication:
-
Acta Astrophysica Sinica
- Pub Date:
- October 1996
- Bibcode:
- 1996AcApS..16..383Z
- Keywords:
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- Spectral Indices: Methods of Reduction;
- Radio Astronomy: Imaging;
- Supernova Remnants: Spectral Indices