Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342701w&link_type=abstract
American Astronomical Society, AAS Meeting #213, #427.01; Bulletin of the American Astronomical Society, Vol. 41, p.257
Astronomy and Astrophysics
Astronomy
Scientific paper
The Space Telescope Science Institute (STScI), in collaboration with the Space Telescope - European Coordinating Facility (ST-ECF) and the Canadian Astronomy Data Centre (CADC), is developing an enhanced archive for the Hubble Space Telescope (HST). The goal of the HLA is to optimize the science coming from the Hubble Space Telescope by providing better browsing capabilities and easy access to both standard and enhanced Hubble products. Some of the primary enhancements include: 1) providing "real time" access to the data (i.e., having the data online), 2) adding a footprint service to make it easier to browse and download images, 3) providing more extensive "composite images" (e.g., stacked images, mosaics, color images etc.), 4) improving absolute astrometry (i.e., from 1-2" to 0.3"), 5) extracting spectra from slitless spectroscopic data (from ST-ECF), and 6) developing source lists for applicable datasets. The HLA entered its Data Release 2 (DR2) phase of operation in September, 2008. The highlight of DR2 is the inclusion of enhanced WFPC2 images produced by CADC. This more than triples the number of enhanced HLA images. In addition, the number of ACS source lists has more than tripled, with 70 % of the ACS images having both DAOphot and SExtractor lists. The HLA currently contains enhanced products for ACS, WFPC2, and NICMOS GRISM extractions (from ST-ECF), and provides access to standard products for NICMOS, STIS, FOS, and GHRS via MAST. Demonstrations will be provided at the Space Telescope Science Institute booth during the conference and people will have the opportunity to use the system interactively. The url is http://hla.stsci.edu .
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