Catalog of Infrared Dark Clouds Virtual Observatory Resource

Authors
  1. Pari J.
  2. Hora J.L.
  3. Published by
    CDS
Abstract

The field of computer vision has greatly matured in the past decade, and many of the methods and techniques can be useful for astronomical applications. One example is in searching large imaging surveys for objects of interest, especially when it is difficult to specify the characteristics of the objects being searched for. We have developed a method using contour finding and convolution neural networks (CNNs) to search for Infrared Dark Clouds (IRDCs) in the Spitzer Galactic plane survey data. IRDCs can vary in size, shape, orientation, and optical depth, and are often located near regions with complex emission from molecular clouds and star formation, which can make the IRDCs difficult to reliably identify. False positives can occur in regions where emission is absent, rather than from a foreground IRDC. The contour finding algorithm we implemented found most closed figures in the mosaic and we developed rules to filter out some of the false positive before allowing the CNNs to analyze them. The method was applied to the Spitzer data in the Galactic plane surveys, and we have constructed a catalog of IRDCs which includes additional parts of the Galactic plane that were not included in earlier surveys.

Keywords
  1. molecular-clouds
  2. infrared-sources
  3. galaxy-classification-systems
Bibliographic source Bibcode
2020PASP..132e4301P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/132/E4301
IVOA Identifier IVOID
ivo://CDS.VizieR/J/PASP/132/E4301

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/132/E4301
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASP/132/E4301
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASP/132/E4301
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASP/132/E4301/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/PASP/132/E4301/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASP/132/E4301/table2?

History

2020-11-20T09:45:31Z
Resource record created
2020-11-20T09:45:31Z
Created
2021-02-09T08:36:55Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr