Optimal curve fitting procedures applied to the light curves of classical Cepheids

Details Optimal curve fitting procedures applied to the light curves of classical Cepheids Optimal curve fitting procedures applied to the light curves of classical Cepheids

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..48..249b&link_type=abstract

Astrophysics and Space Science, vol. 48, no. 2, May 1977, p. 249-266.

Astronomy and Astrophysics

Astrophysics

5

Cepheid Variables, Curve Fitting, Light Curve, Radial Velocity, Optimization, Stellar Spectrophotometry, Velocity Distribution

Scientific paper

An optimal curve-fitting method based on the Baade-Wesselink approach is discussed which retains the notion of integrating the radial-velocity curve of a Cepheid variable. In this method, the observed radial-velocity curve is approximated by a Fourier series, radial position is related to photospheric radius, the photosphere is associated with some apparent magnitude at a given effective wavelength, and effective temperature is related to the brightness temperature at the effective wavelength. An optimization procedure is described, and the equations and methods are applied to two classical Cepheids, Delta Cep and Eta Aql, by optimizing unreduced six-color photometric data. It is shown that the information derivable from photometric observations of classical Cepheids with available radial-velocity curves is essentially characterized by the values of six parameters which together are capable of reproducing the form of the photometric curves to within expected accuracies. The role of each of these parameters is briefly summarized.

Affiliated with

Also associated with

No associations

Rating

Optimal curve fitting procedures applied to the light curves of classical Cepheids 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 Optimal curve fitting procedures applied to the light curves of classical Cepheids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal curve fitting procedures applied to the light curves of classical Cepheids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1882703