Complete CO Data Set

Overview

The table below presents links to download the 13CO (2-1) and C18O (2-1) data-cubes from the SEDIGISM survey. The data has been processed with a dedicated pipeline running in CLASS, which is part of the GILDAS software. Each cube is available in fits format. Each cube covers 2 deg in longitude centered at the indicated position, over +/-0.5 deg in latitude. The pixel size is 9.5'' and the velocity resolution is 0.25 km/s.

If you want to download the whole data set you can use the following wget scripts: 13CO and C18O ; these can easily be modified for the other transitions. It currently takes 15 minutes to download each of the 2 GB cubes and will take approximately 19 hours to download complete set of cubes for a single transition.

Below we collect several versions of the SEDIGISM cloud catalogues, appeared in their respective papers. Catalogues are provided as .ecsv files (that contain the description of columns in the commented preamble), and as .fits astropy tables (where the column descriptions can be accessed with the "info" method).

  • SEDIGISM_catalogue_duarte-cabral2021 (csv, fits): Original cloud catalogue assembled in Duarte-Cabral et al. (2021) (see their Table A.1 for further information).
  • SEDIGISM_catalogue_urquhart2021 (csv, fits): Cloud catalogue that appeared in Urquhart et al. (2021) containing star formation efficiency (SFE) and dense gas fraction (DGF) for each cloud (see Section 4.3 and 4.4 in the paper for further information).
  • SEDIGISM_catalogue_colombo2021 (csv, fits): Cloud catalogue that appeared in Colombo et al. (2021) containing spiral arm association properties and distance updates (see Table 1 and Section 4.2 in the paper for further information).
  • SEDIGISM_catalogue_merged (csv, fits): To-be-used version of the catalogue, merging the most updated information from the previous version-catalogues.

We also provide a table of the medial axis; these can be downloaded in csv or fits formats. The skeleton of a cloud is obtained through the medial axis analysis of the cloud mask projected on the plane of the sky. Subsequently the cloud spine is given by the longest length across the skeleton. The pixels along the spine assume a value given by the distance to the cloud outer edge. The average width is obtained as twice the median of those values. Medial axis table contains information about the pixels along the spine for each cloud. Medial axis analysis is performed via the skimage skeletonize task and the cloud spine is performed using networkx and it is inspired by the Filfinder algorithm application.

Reduced and Calibrated Cubes


SEDIGISM Data Products
Gal. Long. 13CO (2-1) Fits C18O (2-1) Fits 13CO (2-1) Cloud Masks1
Field Centre = 0o fits file fits file fits cube
Field Centre = 1o fits file fits file fits cube
Field Centre = 2o fits file fits file fits cube
Field Centre = 3o fits file fits file fits cube
Field Centre = 4o fits file fits file fits cube
Field Centre = 5o fits file fits file fits cube
Field Centre = 6o fits file fits file fits cube
Field Centre = 7o fits file fits file fits cube
Field Centre = 8o fits file fits file fits cube
Field Centre = 9o fits file fits file fits cube
Field Centre = 10o fits file fits file fits cube
Field Centre = 11o fits file fits file fits cube
Field Centre = 12o fits file fits file fits cube
Field Centre = 13o fits file fits file fits cube
Field Centre = 14o fits file fits file fits cube
Field Centre = 15o fits file fits file fits cube
Field Centre = 16o fits file fits file fits cube
Field Centre = 17o fits file fits file fits cube
Field Centre = 301o fits file fits file fits cube
Field Centre = 302o fits file fits file fits cube
Field Centre = 303o fits file fits file fits cube
Field Centre = 304o fits file fits file fits cube
Field Centre = 305o fits file fits file fits cube
Field Centre = 306o fits file fits file fits cube
Field Centre = 307o fits file fits file fits cube
Field Centre = 308o fits file fits file fits cube
Field Centre = 309o fits file fits file fits cube
Field Centre = 310o fits file fits file fits cube
Field Centre = 311o fits file fits file fits cube
Field Centre = 312o fits file fits file fits cube
Field Centre = 313o fits file fits file fits cube
Field Centre = 314o fits file fits file fits cube
Field Centre = 315o fits file fits file fits cube
Field Centre = 316o fits file fits file fits cube
Field Centre = 317o fits file fits file fits cube
Field Centre = 318o fits file fits file fits cube
Field Centre = 319o fits file fits file fits cube
Field Centre = 320o fits file fits file fits cube
Field Centre = 321o fits file fits file fits cube
Field Centre = 322o fits file fits file fits cube
Field Centre = 323o fits file fits file fits cube
Field Centre = 324o fits file fits file fits cube
Field Centre = 325o fits file fits file fits cube
Field Centre = 326o fits file fits file fits cube
Field Centre = 327o fits file fits file fits cube
Field Centre = 328o fits file fits file fits cube
Field Centre = 329o fits file fits file fits cube
Field Centre = 330o fits file fits file fits cube
Field Centre = 331o fits file fits file fits cube
Field Centre = 332o fits file fits file fits cube
Field Centre = 333o fits file fits file fits cube
Field Centre = 334o fits file fits file fits cube
Field Centre = 335o fits file fits file fits cube
Field Centre = 336o fits file fits file fits cube
Field Centre = 337o fits file fits file fits cube
Field Centre = 338o fits file fits file fits cube
Field Centre = 339o fits file fits file fits cube
Field Centre = 340o fits file fits file fits cube
Field Centre = 341o fits file fits file fits cube
Field Centre = 342o fits file fits file fits cube
Field Centre = 343o fits file fits file fits cube
Field Centre = 344o fits file fits file fits cube
Field Centre = 345o fits file fits file fits cube
Field Centre = 346o fits file fits file fits cube
Field Centre = 347o fits file fits file fits cube
Field Centre = 348o fits file fits file fits cube
Field Centre = 349o fits file fits file fits cube
Field Centre = 350o fits file fits file fits cube
Field Centre = 351o fits file fits file fits cube
Field Centre = 352o fits file fits file fits cube
Field Centre = 353o fits file fits file fits cube
Field Centre = 354o fits file fits file fits cube
Field Centre = 355o fits file fits file fits cube
Field Centre = 356o fits file fits file fits cube
Field Centre = 357o fits file fits file fits cube
Field Centre = 358o fits file fits file fits cube
Field Centre = 359o fits file fits file fits cube
Field Centre = 30o fits file fits file

Footnotes

1 In the assignment mask cube pixels that belong to a given cloud assume a number equivalent to the cloud ID in the catalog.


Reference and Acknowledgments

A detailed description of the SEDIGISM survey and overview of the results is given in Schuller et al. (2021). Please reference this paper in any publication that makes use of SEDIGISM data, and please include the following in the acknowledgment section:

"This publication is based on data acquired with the Atacama Pathfinder Experiment (APEX) under programmes 092.F-9315 and 193.C-0584. APEX is a collaboration among the Max-Planck-Institut fur Radioastronomie, the European Southern Observatory, and the Onsala Space Observatory. The processed data products are available from the SEDIGISM survey database located at https://sedigism.mpifr-bonn.mpg.de/index.html, which was constructed by James Urquhart and hosted by the Max Planck Institute for Radio Astronomy."

In addition, any publication making use of the GMC catalogue, cloud masks, or medial axis tables, please reference Duarte-Cabral et al. (2021). If any of the additional information added to the catalogue by subsequent publications was used, please ensure you also refer to the respective article as well.




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