Total Power Map to Visibilities (TP2VIS): Joint Deconvolution of ALMA 12m, 7m, and Total Power Array Data

Abstract

We present a new package for joint deconvolution of ALMA 12m, 7m, and Total Power (TP) data, dubbed ``Total Power Map to Visibilities (TP2VIS)". It converts a TP (single-dish) map into visibilities on the CASA platform, which can be input into deconvolvers (e.g., CLEAN) along with 12m and 7m visibilities. A manual is presented in the Github repository (https://github.com/tp2vis/distribute). Combining data from the different ALMA arrays is a driver for a number of science topics, namely those that probe size scales of extended and compact structures simultaneously. We test TP2VIS using model images, one with a single Gaussian and another that mimics the internal structures of giant molecular clouds. The result shows that the better uv coverage with TP2VIS visibilities helps the deconvolution process and reproduces the model image within errors of only 5% over two orders of magnitude in flux.

arXiv commentAccepted to PASP. Software distribution: https://github.com/tp2vis/distribute

References in corpus (12)

• THINGS: The HI Nearby Galaxy Survey
• The effect of violent star formation on the state of the molecular gas in M82
• TURBULENCE IN MOLECULAR CLOUDS
• CO(1-0) imaging of M51 with CARMA and NRO45
• ALMA ${}^{12}$CO (J=1--0) imaging of the nearby galaxy M83: Variations in the efficiency of star formation in giant molecular clouds
• DHIGLS: DRAO H I Intermediate Galactic Latitude Survey
• Short Spacing Synthesis from a Primary Beam Scanned Interferometer
• Physical Conditions of the Earliest Phases of Massive Star Formation: Single-Dish and Interferometric Observations of Ammonia and CCS in Infrared Dark Clouds
• Revisiting the theory of interferometric wide-field synthesis
• Accurate recovery of HI velocity dispersion from radio interferometers
• Internal Structures of Molecular Clouds in the LMC Revealed by ALMA
• A new approach for short-spacing correction of radio interferometric data sets

Cited by in corpus (12)

• CASA, the Common Astronomy Software Applications for Radio Astronomy
• PHANGS-ALMA Data Processing and Pipeline
• GASKAP-HI Pilot Survey Science I: ASKAP Zoom Observations of HI Emission in the Small Magellanic Cloud
• Data Combination: Interferometry and Single-dish Imaging in Radio Astronomy
• Molecules with ALMA at Planet-forming Scales (MAPS). X. Studying deuteration at high angular resolution toward protoplanetary disks
• Diverse Molecular Structures Across The Whole Star-Forming Disk of M83: High fidelity Imaging at 40pc Resolution
• CO Excitation and its Connection to Star Formation at 200 pc in NGC 1365
• A Chemical Map of the Outbursting V883 Ori system: Vertical and Radial Structures
• FEASTS Combined with Interferometry. III. The Low Column Density HI Around M51 and Possibility of Turbulent-mixing Gas Accretion
• Multiple gas phases in supernova remnant IC 443: mapping shocked H${}_2$ with VLT/KMOS
• ALMA Datacubes and Continuum Maps of the Irradiated Western Wall in Carina
• The Kinematic and Dynamic Properties of HBC 494's Wide-Angle Outflows