Share Email Print
cover

Proceedings Paper

Archival legacy investigations of circumstellar environments: overview and first results
Author(s): Élodie Choquet; Laurent Pueyo; J. Brendan Hagan; Elena Gofas-Salas; Abhijith Rajan; Christine Chen; Marshall D. Perrin; John Debes; David Golimowski; Dean C. Hines; Mamadou N'Diaye; Glenn Schneider; Dimitri Mawet; Christian Marois; Rémi Soummer
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

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 detections of previously unidentified point sources and circumstellar structures. We present five newly spatially resolved debris disks revealed in scattered light by our analysis of the archival data. These images provide new views of material around young solar-type stars at ages corresponding to the period of terrestrial planet formation in our solar system. We have also detected several new candidate substellar companions, for which there are ongoing followup campaigns (HST/WFC3 and VLT/SINFONI in ADI mode). Since the methods developed as part of ALICE are directly applicable to future missions (JWST, AFTA coronagraph) we emphasize the importance of devising optimal PSF subtraction methods for upcoming coronagraphic imaging missions. We describe efforts in defining direct imaging high-level science products (HLSP) standards that can be applicable to other coronagraphic campaigns, including ground-based (e.g., Gemini Planet Imager), and future space instruments (e.g., JWST). ALICE will deliver a first release of HLSPs to the community through the MAST archive at STScI in 2014.

Paper Details

Date Published: 28 August 2014
PDF: 16 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914357 (28 August 2014); doi: 10.1117/12.2056672
Show Author Affiliations
Élodie Choquet, Space Telescope Science Institute (United States)
Laurent Pueyo, Space Telescope Science Institute (United States)
J. Brendan Hagan, Space Telescope Science Institute (United States)
Purdue Univ. (United States)
Elena Gofas-Salas, Space Telescope Science Institute (United States)
Institut d’Optique Graduate School (France)
Abhijith Rajan, Arizona State Univ. (United States)
Christine Chen, Space Telescope Science Institute (United States)
Marshall D. Perrin, Space Telescope Science Institute (United States)
John Debes, Space Telescope Science Institute (United States)
David Golimowski, Space Telescope Science Institute (United States)
Dean C. Hines, Space Telescope Science Institute (United States)
Mamadou N'Diaye, Space Telescope Science Institute (United States)
Glenn Schneider, Steward Observatory, The Univ. of Arizona (United States)
Dimitri Mawet, European Southern Observatory (Chile)
Christian Marois, NRC Herzberg Institute of Astrophysics (Canada)
Rémi Soummer, Space Telescope Science Institute (United States)


Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

© SPIE. Terms of Use
Back to Top