Accurate parameters for HD 209458 and its planet from HST spectrophotometry
We present updated parameters for the star HD 209458 and its transiting giant planet. The stellar angular diameter θ = 0.2254 ± 0.0017 mas is obtained from the average ratio between the absolute flux observed with the Hubble Space Telescope and that of the best-fitting Kurucz model atmosphere. This angular diameter represents an improvement in
del Burgo, C. et al.
Fecha de publicación:
12
2016