Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-01-04
Astronomy and Astrophysics
Astrophysics
10 Pages, 3 Figures, Review presented at the Mini-Symposium `Recent Results on H_0' at the 19th Texas Symposium, Paris, 1998
Scientific paper
The Cepheids' P-L relation got itself talked about again in the recent past due to claims of observed metallicity dependences of at least its zero point. The divergences of the observational results obtained by the different authors are large, however. Therefore, to date the situation concerning the magnitude and the reliability of the effect is rather uncertain on the observational side. Along the theoretical avenue, some progress towards more realistic and in particular more consistent Cepheid modeling has been achieved recently. Upper limits on the reaction of the P-L relation on assumptions in evolution computations, pulsation stability analyses, and mappings onto photometric passbands can be estimated now quite reliably. This informal review discusses some of the progress (relying mostly on an extensive comparison by Sandage et al. 1998) and it emphasizes modeling problems which still have to be overcome to finalize the theoretical foundation of the Cepheids' P-L relation.
No associations
LandOfFree
On the Robustness of the Cepheids' PL Relation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the Robustness of the Cepheids' PL Relation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Robustness of the Cepheids' PL Relation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-426527