Anita Richards
Anita Richards
Anita Richards
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CASA Cookbook comfort zone<br />
● Most recipes are aimed at (E)VLA mid-range<br />
– Phase- and amp.-stable for 10+ mins<br />
● Solve for 'a&p' in one go<br />
– Isoplanatic patch > primary beam<br />
● Can usually make single image of entire beam<br />
● Additional features for ALMA frequencies<br />
– Fit gspline to phase<br />
– Average polarizations if only troposphere corrupts<br />
● See IRAM talk & Cookbook for short recipes<br />
● Models for resolved calibration sources<br />
● Also well-suited for ATCA, CARMA etc.<br />
– Adapt pixel/beam size<br />
– May have to reduce minblperant<br />
– OK for linear polarized feeds<br />
– ATCA and BIMA scripts<br />
A M S <strong>Richards</strong> CASA tutorial Bonn October 2009 p3 Printed: 06/10/09
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