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  • SDSS
  • Here, we present photometry of images from the Wide-Field Infrared Survey Explorer (WISE) of over 400 million sources detected by the Sloan Digital Sky Survey (SDSS). (osti.gov)
  • We also use a "forced photometry" technique, using measured SDSS source positions, star-galaxy classification, and galaxy profiles to define the sources whose fluxes are to be measured in the WISE images. (osti.gov)
  • objects that are resolved in SDSS but blended together in WISE still have accurate measurements in our photometry. (osti.gov)
  • article{osti_1379057, title = {WISE Photometry for 400 million SDSS sources}, author = {Lang, Dustin and Hogg, David W. and Schlegel, David J.}, abstractNote = {Here, we present photometry of images from the Wide-Field Infrared Survey Explorer (WISE) of over 400 million sources detected by the Sloan Digital Sky Survey (SDSS). (osti.gov)
  • perform
  • We perform photometry with The Tractor image modeling code, working on our "unWISE" coaddds and taking account of the WISE point-spread function and a noise model. (osti.gov)
  • stars
  • But for the treatment of photometry, however, I believe that PixInsight does not have functions compatible with AAVSO either reference stars and compatible reports. (aavso.org)
  • On the other hand, the selection process does not appear to consider spectral match between the target and comparison stars and check star, and (of lesser concern) the lack of consideration of estimated errors in the photometry in choosing them. (aavso.org)
  • choice
  • The Photometry Performance Plans offer a choice of preventive maintenance services for consistent instrument performance and confidence in safety. (eppendorf.com)
  • software
  • VPhot is primarily the work of Geir Klingenberg (coding and design) and Arne Henden (photometry) with a cast of hundreds who have made suggestions, written tutorials and tested the software. (aavso.org)
  • That would imply that the software is presently incapable of being used for photometry. (aavso.org)
  • apply
  • represents a panel which shows the summary of photometry, and which has a button to apply the result to the XML report document. (aerith.net)
  • process
  • I would also be pleased if you or some one else verifies my complete process which I had followed in doing Photometry. (aavso.org)