The Hubble Legacy Archive - Providing Extracted Spectra from Slitless HST Spectrographs

Astronomy and Astrophysics – Astronomy

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Scientific paper

The NICMOS, STIS, ACS, and in the future WFC3, instruments on the Hubble Space Telescope all feature slitless spectroscopic observing modes. As part of the Hubble Legacy Archive (HLA), the Space Telescope - European Coordinating Facility (ST-ECF), in collaboration with the Space Telescope Science Institute (STScI) and the Canadian Astronomy Data Centre (CADC), is working to provide extracted, fully-calibrated, spectra for virtually all objects observed using these instrument modes. The talk will briefly review the challenges of extracting spectra using an unsupervised pipeline and present our adopted solutions. Data Release 1 for the HLA, planned for January 2008, will include extracted NICMOS G141 spectra. This part of the data release will be described, and examples of the quality of the extracted spectra will be shown. Finally, future plans for the slitless spectroscopic aspect of the HLA will be discussed.

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