Imaging the Sun at 21 cm: Budgetting the S-component
| Autor: | I. E. Burke, K. F. Tapping |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Physics
Photosphere Brightness Astrophysics::High Energy Astrophysical Phenomena Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Solar physics Declination Solar cycle Radio telescope Space and Planetary Science Observatory Astrophysics::Solar and Stellar Astrophysics Solar rotation Remote sensing |
| Zdroj: | Solar Physics. 157:295-314 |
| ISSN: | 1573-093X 0038-0938 |
| DOI: | 10.1007/bf00680623 |
| Popis: | On fourteen days in July and August 1992 and June 1993, we used the 7-element synthesis radio telescope at the Dominion Radio Astrophysical Observatory to make full-disc, arc-min resolution images of the Sun at 21 cm, with the objective of budgetting the contributions to the slowly-varying component of solar radio emission. This instrument has the advantage that the mapping field at this wavelength is about 2.5° wide. However, it has also the severe disadvantage that with only 12 hours to record each image, the brightness distribution is severely undersampled. This difficulty, along with solar rotation and declination motion during each observation, required development of special image correction procedures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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