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Latest Surprises from Mira the Wonderful
Marengo, Massimo; Karovska, Margarita; Wood, Brian
We report the latest results from our long-term study of Mira A and its companion Mira B. These include a study of the dust environment in mid-IR wavelengths (Marengo et al. 2001), and of the accretion processes in the Mira AB interacting system (Wood, Karovska, and Raymond 2002).
IUE Observations of the Pulsation of RY SGR
Holm, Albert V.
The correlation of the onsets of RY Sgr's deep minima with pulsational phase suggests that the formation of dust is somehow driven by the pulsation. Observations were obtained using the International Ultraviolet Explorer (IUE) to investigate whether every pulsation cycle is accompanied by the condensation of small amounts of dust. During the 46-da…
Searching for the White Dwarf in Dwarf Novae
Mattei, Janet A.; Nelan, Edmund; Holm, Albert V. +1 more
AAVSO observations of dwarf novae were used to select targets in a search by the International Ultraviolet Explorer (IUE) satellite for their white dwarf components. Twelve of fourteen attempts caught the dwarf novae in quiescence. Lyman alpha absorption such as seen in white dwarf stars was found in three of the six observed systems, two of which…
Meeting Reports: Colloquium on HIPPARCOS Scientific Aspects of the Input Catalogue Preparation and A Celebratory Symposium on a Decade of UV Astronomy with the IUE Satellite
Mattei, Janet A.
The colloquium HIPPARCOS Scientific Aspects of Input Catalogue Preparation, held in Sitges, Spain, January 25 - 29, 1988, is described. Also described is a celebratory symposiun on a Decade of UV Astronomy with the IUE Satellite, held April 12 - 15,k 1988 in Greenbelt, MD. Brief description of the European astrometric satellite HIPPARCOS and the u…