Bibcode
DOI
Marziani, P.; Sulentic, J. W.; Calvani, M.; Perez, E.; Moles, M.; Penston, M. V.
Bibliographical reference
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 410, no. 1, p. 56-67.
Advertised on:
6
1993
Journal
Citations
55
Refereed citations
45
Description
Spectrophotometric observations of OQ 208 over the time period between
March 1985 and February 1991 are presented. It is found that the H-beta
flux varies strongly over the period of observation. The peculiar
profiles of the Balmer lines are variable, and their variations make it
possible to place some unambiguous constraints on the broad line region
structure. Possible models capable of explaining the observed properties
of OQ 208 in a simple way are examined, and it is suggested that the
most plausible scenario to explain the Balmer line emission involves a
system of clouds accelerated by radiation pressure in a biconical
configuration plus an additional contribution from a cloud component
that is either spherically symmetric or confined within a thick
cylinder.