STELLAR ASTROPHYSICS News and Events

Recent Stellar Astrophysics Colloquia

• (Feb 17/99) Arsen Hajian, USNO: What's so exciting about an FTS?

  Astronomical Fourier Transform Spectroscopy is not very popular these days, except for studying very specialized classes of astrophysical phenomena (e.g. narrowband observations, emission-line sources) FTS observations have not been very practical for acquiring broadband optical observations of stellar spectra, mainly due to a low observing efficiency. We report new developments in FTS methods, including a promising technique which demonstrates large increases in the sensitivity of broadband FTS instruments. In addition, a new generation of FTSs may be able to significantly improve precise Doppler monitoring at levels more accurate than the 3 m/s limit faced by the best absorption cell methods.

Recent Stellar Discussion Group Topics

• The future of stellar astronomy in Canada

Upcoming Stellar Discussion Groups/Colloquia

(None scheduled)

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Page maintained by G.A. Wade Last updated March 22 1999