Probing the parameter space of HD 49933: a comparison between global and local methods

Details Probing the parameter space of HD 49933: a comparison between global and local methods Probing the parameter space of HD 49933: a comparison between global and local methods

2010-11-12

arxiv.org/abs/1011.3037v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

to be published in JPCS

Scientific paper

We present two independent methods for studying the global stellar parameter space (mass M, age, initial chemical composition X_0, Z_0) of HD 49933 with seismic data. Using a local minimization and an MCMC algorithm, we obtain consistent results for the determination of the stellar properties: M = 1.1 - 1.2 M_solar, Age ~ 3.0 Gyr, Z_0 ~ 0.008. A description of the error ellipses can be defined using Singular Value Decomposition techniques, and this is validated by comparing the errors with those from the MCMC method.

Affiliated with

Also associated with

No associations

Rating

Probing the parameter space of HD 49933: a comparison between global and local methods 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 Probing the parameter space of HD 49933: a comparison between global and local methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the parameter space of HD 49933: a comparison between global and local methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-444781