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Archival Legacy Investigation of Circumstellar Environments using KLIP algorithm on HST NICMOS coronagraphic data

Published online by Cambridge University Press:  06 January 2014

Elodie Choquet
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
J. Brendan Hagan
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Laurent Pueyo
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Marshall D. Perrin
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Dean C. Hines
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Christine Chen
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Glenn Schneider
Affiliation:
University of Arizona
John Debes
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
David Golimowski
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Neill Reid
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Tushar Mittal
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Margaret Moerchen
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Mamadou N'Diaye
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Abhijith Rajan
Affiliation:
Arizona State University
Sean Lonsdale
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
Remi Soummer
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA
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Abstract

The Archival Legacy Investigation of Circumstellar Environments (ALICE) project (AR-12652) is currently conducting a comprehensive and consistent reprocessing of HST-NICMOS coronagraphic survey data to search for point sources and disks using advanced PSF subtraction. The KLIP algorithm (Karhunen-Loève Image Projection) was developed for this project, and has proven very effective at processing the hundreds of selected archival images. This project has already been very successful with numerous detections of previously unseen point sources and several resolved debris disks that we are currently following up by multiple avenues. We give an overview of the project including preliminary scientific results with companion candidates and improved images of known disks

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013 

References

Lafreniere, D., Marois, C., Doyon, R., Nadeau, D., & Artigau, E. 2007, ApJ, 660, 770CrossRefGoogle Scholar
Schneider, G., Silverstone, M. D., Hines, D. C., et al. 2006, ApJ, 650, 414CrossRefGoogle Scholar
Soummer, R., Pueyo, L., & Larkin, J. 2012, ApJ, 755L, 28CrossRefGoogle Scholar
Weinberger, A. J., Becklin, E. E., Schneider, G., et al. 1999, ApJ, 525, L53CrossRefGoogle Scholar
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Archival Legacy Investigation of Circumstellar Environments using KLIP algorithm on HST NICMOS coronagraphic data
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