On the solar oblateness: The combined effect of a pole-equator difference in effective temperature and mechanical heating

✍ Scribed by B. R. Durney; N. E. Werner

• Publisher: Springer
• Year: 1971
• Tongue: English
• Weight: 277 KB
• Volume: 21
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00155768

✦ Synopsis

With the help of a model atmosphere of the Sun we evaluate the pole-equator difference in flux (as measured by Dicke and Goldenberg) assuming the following type of pole-equator temperature difference (A T = Te --T~) : (a) A T ~ 2 K for r > r0 (r0 ~ 0.05); (b) A T ~ 10 K for r < r 0.

The small ATat all optical depths given by (a) could, for example, be due to a pole-equator difference in effective temperatures. At small optical depths a difference in mechanical heating could give rise to the larger temperature difference given by (b). We compare the results of our calculations with Dicke and Goldenberg's observations.