Visible and infrared photometry of ER Vul.

Arévalo, M. J.; Fuensalida, J. J.; Lázaro, C.
Referencia bibliográfica

Activity in cool star envelopes, p. 107 - 110

Fecha de publicación:
0
1988
Número de autores
3
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
U,B,V,R,I and simultaneous near infrared J,H,K light curves of the RS CVn system ER Vul are presented. A study of the mean levels compared to other years indicates that the system is highly variable, giving evidence that important changes occur over one month. Colours show an ultraviolet and infrared excess. There seems to be a contribution from a hot plasma in the observed fluxes, with temperatures between 104 - 5×104K.