Classification of the Enigmatic Nantucket Variable XX Sct

Details Classification of the Enigmatic Nantucket Variable XX Sct Classification of the Enigmatic Nantucket Variable XX Sct

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000javso..28...87b&link_type=abstract

Journal of the American Association of Variable Star Observers, Vol. 28, p. 87-93

Physics

Variable Stars, Xx Sct, Herbig Ae/Be, Uxors

Scientific paper

The irregular variable XX Sct has been ascribed five different variability types since its discovery in 1924, from a Cepheid to a rapid irregular variable. Re-examination of nearly 1200 blue photographic plates of this star at the Maria Mitchell Observatory revealed strong irregular variability of up to 3 magnitudes on different time scales. Several possible periods have been found, none of which are particularly convincing. UBV photometry and a low-resolution opitcal spectrum are consistent with a reddened A star. We tentatively suggest that XX Sct is one of the class of young, intermediate mass Herbig Ae/Be stars known as UXors.

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