EAS Publications Series
Volume 6, 2003Observing with the VLTI
|Page(s)||265 - 265|
|Published online||31 January 2003|
G. Perrin and F. Malbet (eds)
EAS Publications Series, 6 (2003) 265
Calibrating the Cepheid Period-Luminosity relation with the VLTI
Harvard-Smithsonian Center for
Astrophysics, 60 Garden St., Cambridge, MA 02138, USA
2 Naval Research Laboratory, Code 7210, Washington, DC 20375, USA
3 University of Redlands, 1200 E Colton Ave, Redlands, CA, USA
The VLTI is the ideal instrument for measuring the distances of nearby Cepheids with the Baade-Wesselink method, allowing an accurate recalibration of the Cepheid Period-Luminosity relation. The high accuracy required by such measurement, however, can only be reached taking into account the effects of limb darkening, and its dependence on the Cepheid pulsations. We present here our new method to compute phase- and wavelength-dependent limb darkening profiles, based on hydrodynamic simulation of Classical Cepheid atmospheres.
© EAS, EDP Sciences, 2003
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