Oxford, England
Present address: Dominion Astrophysical Observatory, Victoria, BC, Canada
Abstract
Spectroscopy is the essential tool for investigating the nature of
stellar atmospheres of all types of stars, standard as well as variable; monitoring
the spectrum of a variable star provides vital information about the causes of
observed photometric variability. Astrophysics, therefore, needs accessible data
banks of spectra to complement those of photometric observations such as are
held by the AAVSO. The IAU Working Group for Spectroscopic Data Archives
is working towards the establishment of such data-banks from two approaches:
(1) the collection and dissemination of newly-acquired digital spectra, and (2) the
creation of a world plate store (the "Virtual Observatory") to facilitate the re-use
of older photographic spectrograms.