HI galaxies and the Nançay Archive

Details HI galaxies and the Nançay Archive HI galaxies and the Nançay Archive

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..577t&link_type=abstract

SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret

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The HI extragalactic database (HIgi) of the Nançay radiotelescope (NRT) is associated with the KLUN+ survey, the cosmological key project of the instrument since July 2000. Our goal is to collect a wide homogeneous and complete sample of 20,000 spiral galaxies distributed on the whole sky, both from new HI observations and from an exhaustive review of the literature. This database programme is a subset of a wider project of virtual instrumentation and datamining: the MIGALE database (see P.Prugniel, this conference). The last HI compilation contains 16,600 galaxies (Paturel et al 2003), among which about 6000 observed with the Nançay antenna. The spectroscopic archive provides today the on-line access to ~4000 21-cm line (reduced) profiles, and for the most recent observations (acquired with FORT, ~1000 objects), a visualization of the raw dynamical spectra from the autocorrelator. In a near future, the complementary NRT archive should allow the manipulation of all the raw data produced with the various backends (autocorrelator, numerical spectrometer/RDH, and pulsar's dedispersors).

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