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Astronomical imaging: The theory of everything
David W. Hogg, Dustin Lang
We are developing automated systems to provide homogeneous calibration meta-data for heterogeneous imaging data, using the pixel content of the image alone where necessary. Standar…
Measuring the undetectable: Proper motions and parallaxes of very faint sources
Dustin Lang, David W. Hogg, Sebastian Jester +1
The near future of astrophysics involves many large solid-angle, multi-epoch, multi-band imaging surveys. These surveys will, at their faint limits, have data on large numbers of s…
Blind Date: Using proper motions to determine the ages of historical images
Jonathan T. Barron, David W. Hogg, Dustin Lang +1
Astrometric calibration is based on patterns of cataloged stars and therefore effectively assumes a particular epoch, which can be substantially incorrect for historical images. Wi…