The Extended Atmosphere of l Pavonis at the Time of the Emergence of H-emissions from Minimum Intensity.

SAHADE, J.; ROVIRA, M.; RINGUELET, A.; KONDOY,; CIDALE, L.

ASTROPHYSICAL JOURNAL

The University of Chicago Press

Lugar: Chicago - Estados Unidos; Año: 1988 vol. 327 p. 335 - 341

0004-637X

A study of the Be star Lambda Pavonis, particularly of the changes in the Balmer discontinuity in the interval 1949-1982, is presented. Nearly simultaneous observations carried out with the ESO 1.5 m reflector at La Silla and with the IUE satellite correspond to an epoch when the H emission is starting to increase intensity immediately after having reached its minimum strength. These observations suggest the presence of four distinct regions of line formation, with the material moving outward in the transition region.