Abell 43 a Pulsating Hydrogen Rich PG 1159!

Details Abell 43 a Pulsating Hydrogen Rich PG 1159! Abell 43 a Pulsating Hydrogen Rich PG 1159!

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jrasc..99..143q&link_type=abstract

Journal of the Royal Astronomical Society of Canada, Vol. 99, No. 4, p.143

Astronomy and Astrophysics

Astronomy

Scientific paper

We modeled the hybrid PG 1159 type star ABELL 43. We show that the kappa-mechanism, due to ionization of C k-shell, in the envelope of this hydrogen rich PG 1159 is the only one needed to drive g-mode pulsation. There is thus, in contradiction with some recent publication, no need to invoke any new or exotic mechanism to explain instability in this star. Our instability band extends from 2600 s to 5520 s for l = 1 modes and overlap recent photometric observations of ABELL 43.

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