How are the IRSA and Vizier GLIMPSE holdings different?
Posted by Vandana Desai on 26 November 2013 04:23 PM
The IRSA GLIMPSE holdings include Catalogs and Archives. The Catalog is a more reliable list of sources, and the Archive is a more complete list both in number of sources and flux measurements at each wavelength (less nulling of fluxes). Vizier has concatenated the GLIMPSE I+II+3D Catalogs, and does not provide access to the Archives at all. Users interested in bright sources that have null fluxes in the GLIMPSE Catalogs (accessed at IRSA or Vizier) should consult the corresponding Archives at IRSA.
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