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Archival legacy investigations of circumstellar environments: overview and first results
Schneider, Glenn; Hines, Dean C.; Perrin, Marshall D. +12 more
We are currently conducting a comprehensive and consistent re-processing of archival HST-NICMOS coronagraphic surveys using advanced PSF subtraction methods, entitled the Archival Legacy Investigations of Circumstellar Environments program (ALICE, HST/AR 12652). This virtual campaign of about 400 targets has already produced numerous new detection…
Enhancement of the Spitzer Infrared Array Camera (IRAC) distortion correction for parallax measurements
Capak, Peter; Kirkpatrick, J. Davy; Lowrance, Patrick J. +6 more
The Spitzer Space Telescope Infrared Array (IRAC) offers a rare opportunity to measure distances and determine physical properties of the faintest and coldest brown dwarfs. The current distortion correction is a 3rd order polynomial represented by TAN-SIP parameters within the headers. The current correction, good to 100 mas, was derive…