Calibrating the Cepheid Period-Luminosity relation with the VLTI

被引：0
|
作者：
Marengo, M [1 ]
Karovska, M [1 ]
Sasselov, D [1 ]
Papaliolios, C [1 ]
Armstrong, JT [1 ]
Nordgren, TE [1 ]
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
来源：
OBSERVING WITH THE VLT INTERFEROMETER | 2003年 / 6卷
关键词：
D O I：
10.1051/eas:2003026
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
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页码：265 / 267
页数：3
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