SPECTRA OF THE HB 21 SUPERNOVA REMNANT: EVIDENCE OF SPECTRUM FLATTENING AT THE LOW FREQUENCIES
We use observations of the continuum radio emission at 1420, 820, 408, 34.5 and 22 MHz to estimate the mean brightness temperatures of the HB 21 supernovaremnant (SNR) at five frequencies. We also present mean spectral index of HB 21. The spectra of HB 21 are estimated from mean temperatures versus...
Shranjeno v:
| izdano v: | Revista Mexicana de Astronomía y Astrofísica |
|---|---|
| Principais autores: | , , |
| Format: | Artigo |
| Jezik: | Inglês |
| Izdano: |
Universidad Nacional Autónoma de México
2012
|
| Teme: | |
| Online dostop: | https://www.redalyc.org/articulo.oa?id=57124416005 |
| Oznake: |
Brez oznak, prvi označite!
|