Mode identification for Balloon 090100001 using combined multicolour photometry and spectroscopy
Astrophysics
2009-11-13 v1
Abstract
In this paper, we show that method of mode identification using combined multicolour photometry and spectroscopy can be successfully applied to the pulsating subdwarf B star Balloon 090100001. The method constrains the spherical degree, l.We confirm that the dominant mode is radial and we show that for some other modes the method provides values of l consistent with the observed rotationally split triplet. Moreover, we derive a radius variation of 1.7 per cent for the dominant mode. The identification opens the possibility for constraining the internal structure of the star by means of seismic methods.
Cite
@article{arxiv.0802.3460,
title = {Mode identification for Balloon 090100001 using combined multicolour photometry and spectroscopy},
author = {A. Baran and A. Pigulski and S. J. O'Toole},
journal= {arXiv preprint arXiv:0802.3460},
year = {2009}
}
Comments
MNRAS, in press, already at the online-early stage