Prediciting amplitude variations of physical parameters from spectroscopic modelling of the pulsating sdBV Balloon 090100001

Details Prediciting amplitude variations of physical parameters from spectroscopic modelling of the pulsating sdBV Balloon 090100001 Prediciting amplitude variations of physical parameters from spectroscopic modelling of the pulsating sdBV Balloon 090100001

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157..355o&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 355

Physics

Scientific paper

In order to interpret our extensive spectroscopic time-series of the high amplitude sdBV pul- sator Balloon 090100001 we have undertaken an extensive exercise to model the variations in effective surface temperature, gravity, velocity as well as photometry throughout the pulsa- tional cycle for different pulsational ℓ and m’s. Here we present the results of this modelling demonstrating that the amplitude ratios of temperature and gravity, as determined by clas- sical fitting of observed spectra on model grids, can be used as reliable indicators of the pulsational degree ℓ.

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