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Published April 2018 | Published + Accepted Version
Journal Article Open

ALICE Data Release: A Revaluation of HST-NICMOS Coronagraphic Images

Abstract

The Hubble Space Telescope NICMOS instrument was used from 1997 to 2008 to perform coronagraphic observations of about 400 targets. Most of them were part of surveys looking for substellar companions or resolved circumstellar disks to young nearby stars, making the NICMOS coronagraphic archive a valuable database for exoplanets and disks studies. As part of the Archival Legacy Investigations of Circumstellar Environments program, we have consistently reprocessed a large fraction of the NICMOS coronagrahic archive using advanced starlight subtraction methods. We present here the high-level science products of these re-analyzed data, which we delivered back to the community through the Mikulski Archive for Space Telescopes: doi:10.17909/T9W89V. We also present the second version of the HCI-FITS format (for High-Contrast Imaging FITS format), which we developed as a standard format for data exchange of imaging reduced science products. These re-analyzed products are openly available for population statistics studies, characterization of specific targets, or detected point-source identification.

Additional Information

© 2018 The American Astronomical Society. Received 2017 August 9; revised 2018 February 8; accepted 2018 February 8; published 2018 April 2. This project was made possible by the Mikulski Archive for Space Telescopes (MAST) at STScI, which is operated by AURA, Inc. for NASA under contract NAS5-26555. Support was provided by NASA through grants HST-AR-12652.01 (PI: R. Soummer) and HST-GO-11136.09-A (PI: D. Golimowski), HST-GO-13855 (PI: É. Choquet), HST-GO-13331 (PI: L. Pueyo), and by STScI Directors Discretionary Research funds. E.C. acknowledges support from NASA through Hubble Fellowship grant HF2-51355 awarded by STScI. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France, and of NASA's Astrophysics Data System.

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Published - Hagan_2018_AJ_155_179.pdf

Accepted Version - 1802.07754.pdf

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Created:
August 19, 2023
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October 18, 2023