The most interesting roAp target for MONS: HR1217 ?

Details The most interesting roAp target for MONS: HR1217 ? The most interesting roAp target for MONS: HR1217 ?

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mons.proc..173k&link_type=abstract

The Third MONS Workshop: Science Preparation and Target Selection, Proceedings of a Workshop held in Aarhus, Denmark, January 24

Physics

Scientific paper

The roAp star HR1217 is presented as a good and possibly the best roAp target for MONS and the progress of the 1998 3-site STACC Campaign is briefly summarized incl. the first detection of EW oscillation in Hα and Hβ in this star, alongside evidence of EW varying with the phase of rotation. HR1217 has 6 known oscillation frequencies of which the four strongest appear to be rotationally split with photometric amplitudes ~< 1 mmag. The problem with groundbased observations is the 3-day-alias beating with neighbouring peaks which limits our chances for a solid mode id. With 30 days (2.4ṡ Prot) on MONS CAM we should have the needed observational data for doing asteroseismology on a magnetic star at last!

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