Observations of hot stars and eclipsing binaries with FRESIP

Details Observations of hot stars and eclipsing binaries with FRESIP Observations of hot stars and eclipsing binaries with FRESIP

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spmt.nasa...63g&link_type=abstract

In NASA. Ames Research Center, Astrophysical Science with a Spaceborne Photometric Telescope p 63-70(SEE N95-14499 03-90)

Astronomy and Astrophysics

Astrophysics

Astronomical Interferometry, Astronomical Spectroscopy, Eclipsing Binary Stars, Frequencies, Hot Stars, Photometry, Stellar Mass, Targets, Unsteady Flow, Binary Data, Brown Dwarf Stars, Mass Ratios

Scientific paper

The FRESIP project offers an unprecedented opportunity to study pulsations in hot stars (which vary on time scales of a day) over a several year period. The photometric data will determine what frequencies are present, how or if the amplitudes change with time, and whether there is a connection between pulsation and mass loss episodes. It would initiate a new field of asteroseismology studies of hot star interiors. A search should be made for selected hot stars for inclusion in the list of project targets. Many of the primary solar mass targets will be eclipsing binaries, and I present estimates of their frequency and typical light curves. The photometric data combined with follow up spectroscopy and interferometric observations will provide fundamental data on these stars. The data will provide definitive information on the mass ratio distribution of solar-mass binaries (including the incidence of brown dwarf companions) and on the incidence of planets in binary systems.

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