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Cepheid distances from Interferometry
Pierre Kervella
Long baseline interferometry is now able to resolve the pulsational change of the angular diameter of a significant number of Cepheids in the solar neighborhood. This allows the ap…
Eta Car through the eyes of interferometers
Olivier Chesneau, R. Van Boekel, T. Herbst +6
The core of the nebula surrounding Eta Carinae has recently been observed with VLT/NACO, VLTI/VINCI, VLTI/MIDI and VLTI/AMBER in order to spatially and spectrally constrain the war…
The projection factor of delta Cephei A calibration of the Baade-Wesselink method using the CHARA Array
Mérand Antoine, Pierre Kervella, Vincent Coude Du Foresto +8
Cepheids play a key role in astronomy as standard candles for measuring intergalactic distances. Their distance is usually inferred from the Period-Luminosity relationship, calibra…
VLTI/VINCI diameter constraints on the evolutionary status of delta Eri, xi Hya, eta Boo
Frederic Thévenin, Pierre Kervella, Bernard Pichon +3
Using VLTI/VINCI angular diameter measurements, we constrain the evolutionary status of three asteroseismic targets: the stars Eri, Hya, Boo. Our predictions of the mea…