ADCからのお知らせ/Information from ADC No.571(2017/3/7)
CASA 4.7.1 tclean mosaicking bug
CASA 4.7.1 について、代理投稿いたします。
Agency post for CASA 4.7.1
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Dear CASA users,
We have found a bug in CASA 4.7.1 concerning the restoration of mosaics
in tclean. The primary beam correction was inadvertently applied to the
model image, which causes problems during cleaning and causes the
output restored image to have the primary beam corrected model added to
uncorrected residuals, which is incorrect. This behavior is independent
of the value of the pbcor parameter (for mosaics the pbcor=True option
is not yet implemented).
We have prepared a fix and will issue a new patched CASA version 4.7.2
in a few days.
The issue seems to only appear in CASA 4.7.1; CASA 4.7.0-1 is not
affected.
If you have any additional questions, please consult the NRAO or ALMA
helpdesks:
https://help.nrao.edu
https://help.almascience.org/
Regards,
the CASA team
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