next up previous contents
Next: Physical description of Up: Local "seeing" Previous: Synthesis

Mirror seeing

 

Laboratory studies of image deterioration due to convection above heated mirror have been published by a few researchers:

All these laboratory measurements constitute an important body of data but, perhaps because different methods were used, they have never been generalized and interpreted in a way that would lead to a general theory of the mirror seeing phenomenon from which one could obtain engineering parameterizations reliably applicable to an actual telescope design.

In the next section we will describe the mirror seeing phenomenon as it appears from a fluid dynamics standpoint. Section gif will summarize the available experimental data, including some obtained by the author during this work, and reduce them to common units of measure. Then in section gif the various data sets will be analyzed, interpreted in the light of similarity relationships and utilized to develop and validate approximate computational models which will provide a useful theory for understanding and controlling the mirror seeing phenomenon in telescopes.





next up previous contents
Next: Physical description of Up: Local "seeing" Previous: Synthesis



Lorenzo Zago, lorenzo.zago@heig-vd.ch, Mon Nov 6 23:33:14 GMT+0100 1995