AST.ZERO_SNRLO

Can help to remove bowls around sources by increasing the size of the SNR mask without introducing noise

Description:

If non-zero values are supplied for ast.zero_snrlo and parameter "ast.zero_snr" , then the basic mask created by thresholding at the SNR value specified by ast.zero_snr is modified by expanding each un-masked " source" area down to an SNR equal to ast.zero_snrlo, without introducing any new isolated source areas. The ast.zero_snrlo should be lower than the ast.zero_snr value. [0]
Type:
real

SMURF Usage

MAKEMAP, CALCQU