Optimizing Spatial Frequency Data Weights for High Precision Imaging with ALMA

Details Optimizing Spatial Frequency Data Weights for High Precision Imaging with ALMA Optimizing Spatial Frequency Data Weights for High Precision Imaging with ALMA

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..434..337m&link_type=abstract

Astronomical Data Analysis Software and Systems XIX. Proceedings of a conference held October 4-8, 2009 in Sapporo, Japan. Edite

Astronomy and Astrophysics

Astronomy

Scientific paper

We have conducted imaging simulations of observations for wide field with ALMA (Atacama Large Millimeter/submillimeter Array), which consists of ACA measuring very short spacing visibilities and 12 m Array measuring longer spacing visibilities. The results show that big uv response gap between shorter spacings and longer spacings degrades image precision considerably. It suggests importance of sensitivity equalization in uv domain between ACA and 12 m Array for obtaining precise images.

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