MIS: a MIRIAD Interferometry Singledish toolkit

TL;DR

This paper presents a pipeline toolkit using MIRIAD for combining interferometric and single dish data, demonstrated on CARMA observations of NGC 1333, enabling efficient, uniform data reduction for large millimeter-wave surveys.

Contribution

The paper introduces a MIRIAD-based pipeline toolkit for integrated interferometric and single dish data reduction, tailored for large millimeter-wave observational datasets.

Findings

Successful end-to-end data processing pipeline implemented

Produced comprehensive maps from 20 CARMA datasets covering 8x11 arcminutes

Demonstrated potential for repeated calibration and mapping in large surveys

Abstract

Building on the "drPACS" contribution at ADASS XX of a simple Unix pipeline infrastructure, we implemented a pipeline toolkit using the package MIRIAD to combine Interferometric and Single Dish data (MIS). This was prompted by our observations made with the Combined Array For Research in Millimeter-wave Astronomy (CARMA) interferometer of the star-forming region NGC 1333, a large survey highlighting the new 23-element and singledish observing modes. The project consists of 20 CARMA datasets each containing interferometric as well as simultaneously obtained single dish data, for 3 molecular spectral lines and continuum, in 527 different pointings, covering an area of about 8 by 11 arcminutes. A small group of collaborators then shared this toolkit and their parameters via CVS, and scripts were developed to ensure uniform data reduction across the group. The pipeline was run end-to-end each night as new observations were obtained, producing maps that contained all the data to date. We will show examples of the scripts and data products. This approach could serve as a model for repeated calibration and mapping of large mixed-mode correlation datasets from ALMA.