Archival Legacy Investigations of Circumstellar Environments (ALICE): Statistical assessment of point source detections

25 Sep 2015  ·  Choquet É., Pueyo L., Soummer R., Perrin M. D., Hagan J. B., Gofas-Salas E., Rajan A., Aguilar J. ·

The ALICE program, for Archival Legacy Investigation of Circumstellar Environment, is currently conducting a virtual survey of about 400 stars, by re-analyzing the HST-NICMOS coronagraphic archive with advanced post-processing techniques. We present here the strategy that we adopted to identify detections and potential candidates for follow-up observations, and we give a preliminary overview of our detections... We present a statistical analysis conducted to evaluate the confidence level on these detection and the completeness of our candidate search. read more

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Instrumentation and Methods for Astrophysics