ALMA Observations of 24 Exoplanetary Debris Disk Systems

24 exoplanetary debris disk systems from the ARKS ALMA large program provide continuum images and visibilities. Data includes calibrated measurement sets (.ms files), visibility tables (.txt files), and CLEAN image FITS files with primary beam corrections. The accompanying ARKS_summary_table contains stellar properties, disc properties, and ALMA observation details for each system.

Use Cases

• Analyze disc properties and stellar properties correlations from the ARKS_summary_table to model debris disk evolution.
• Process continuum visibilities from .ms files to reconstruct high-resolution images of circumstellar dust structures.
• Compare CLEAN images with different robust parameters to study the trade-off between resolution and signal-to-noise.
• Use primary beam images (.pb.fits files) for accurate flux density corrections in photometric analysis of the 24 systems.
• Apply phase center shifts and amplitude corrections from the 'corrected' visibility files for precise astrometric measurements.

Strengths

• Data originates from the ALMA large program ARKS, a dedicated survey for high-resolution observations.
• Includes multiple data products per target: raw visibilities, derived images, and a consolidated summary table of system properties.
• Visibilities are provided in both CASA measurement set format and portable text table format for flexibility.

Limitations

• Dataset size is unspecified, making download planning and computational resource estimation difficult.
• Sample scope is limited to 24 specific systems, which may not be representative of all debris disk populations.
• Some data files require specific software like CASA for .ms files, which has a steep learning curve.

Provenance

Source

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) large program.

Collection Method

Observations from the Atacama Large Millimeter/submillimeter Array (ALMA), including ACA, 12m, and combined configurations.

Freshness

Last updated 2026-01-19.