Bibcode
Oreiro, R.; Ulla, A.; Pérez Hernández, F.; MacDonald, J.; Østensen, R.; Rodríguez-López, C.
Referencia bibliográfica
14th European Workshop on White Dwarfs, ASP Conference Series, Vol. 334 Proceedings of a meeting held at Kiel, July 19-23, 2004. Edited by D. Koester and S. Moehler. San Francisco: Astronomical Society of the Pacific, 2005, p.631
Fecha de publicación:
7
2005
Número de citas
1
Número de citas referidas
1
Descripción
Balloon 090100001 is the brightest (B=11.8) pulsator sdB of the EC14026
class. Moreover, it shows a frequency mode (at 356 s, 2.81 mHz) with
one of the hightest amplitude of oscillation (˜ 59 mmag) in its
class. At least another frequency is present in a low resolution
frequency spectrum. The physical parameters of the star
(Teff=29446 K, log g=5.33) may indicate that it has already
crossed the Terminal Age Extended Horizontal Branch, so it would be
evolving very fast towards the White Dwarf phase. We discuss this
possibility and propose the object as a very interesting
asteroseismology target.