Enhancing Science with the Hubble Legacy Archive Bologna, January 29, 2008 Brad Whitmore OUTLINE The...
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![Page 1: Enhancing Science with the Hubble Legacy Archive Bologna, January 29, 2008 Brad Whitmore OUTLINE The potential for enhanced archival science What is the.](https://reader035.fdocuments.net/reader035/viewer/2022070402/56649f225503460f94c3a100/html5/thumbnails/1.jpg)
Enhancing Science with the Hubble Legacy Archive
Bologna, January 29, 2008 Brad Whitmore
OUTLINE
• The potential for enhanced archival science
• What is the Hubble Legacy Archive (HLA) ?
• A quick samplers pack
Demos available in the poster room.
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Potential for Enhanced Science
Our goal is to optimize the science return from the Hubble Space Telescope by providing online, enhanced Hubble products and advanced browsing capabilities.
We take advantage of various advances in the past decade:• growing archives (less need to propose oneself) • cheap disk space (so can put all data online)• improved Hubble products (e.g., multidrizzled ACS and WFPC2 images, source lists, grism extractions, …)
Increase overall science:• make it easier to browse and download HST data• reduce redundancy• reach future generations of astronomers (and public) by integration into the Virtual Observatory
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Note: the URL will point to our Early Data Release until early February.
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Google-like “one box”
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Advanced Search Option
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Inventory View
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Footprints for easier browsing of what Hubble data already exists
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Image View - subset of M101 images.
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Interactive Display of M101 image
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HLA source list overlay for blowup of M101 image
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Comparison of HLA source lists with Stetson ground-based photometry of 47 TUC.- offset = 0.02 mag (N=4)- RMS scatter = 0.007 mag (N=4)
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• The Hubble Legacy
The brighter/darker control can bring out the full dynamic range
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Color images are automatically produced if observations in two or more filters are available.
HLA >>>
Lars Christiansen (ECF) >>>
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Four out of 600 ACS and STIS images of SN1987A
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Image view of some STIS data
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Image view and interactive display of STIS long-slit spectral data
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Image view - GHRS spectral previews
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NICMOS GRISM Extractions from ST-ECF
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The Team (partial list)STScI (integration, cutouts, footprints, associations, source lists, interfaces, …)
- Warren Miller (Acting Project Manager, Lead Engineer)
- Brad Whitmore (Project Scientist, source lists)
- Anton Koekemoer (Integration Scientist, multidrizzle pipeline, astrometry)
- Niall Gaffney (Software Engineer)
- Rick White (cutouts)
- Steve Lubow, Gretchen Greene (footprints)
- Brian McLean (astrometry)
- Helmut Jenkner (consultant)
- Kevin Lindsay (source lists), Matt Stankiewicz (quality control)
ECF (spectra, e.g., NICMOS grism extractions) CADC (WFPC2 images, …)
- Richard Hook (ECF Proj. Man.) - David Schade (CADC Proj. Man.)
- Wolfram Freudling (NICMOS lead) - Daniel Durand (WFPC2, source list)
- Alberto Micol (pipeline meta data)
- Martin Kuemmel (grism extraction)
- Harald Kuntschner (science validation)