On the Red Edge of the δ Scuti Instability Strip

Details On the Red Edge of the δ Scuti Instability Strip On the Red Edge of the δ Scuti Instability Strip

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002chjaa...2..441x&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 2, p. 441-448

Astronomy and Astrophysics

Astrophysics

6

Stars: Variables: Δ Sct, Stars: Oscillations, Stars: Hr Diagram

Scientific paper

The δ Scuti star catalogue is used to derive the observational locations of such stars on the HR diagram. The theoretical and observational instability strips are compared to check the theoretical red edge obtained by considering non-local time-dependent convection theory. The observational instability strip almost overlaps with the theoretical one, but the observed blue and red envelopes are hotter than the theoretical edges. The distribution of δ Scuti stars in the pulsation strip is not uniform.

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