Spectrophotometric monitoring of high luminosity active galactic nuceli. I - The methods and data

Bibcode
1989MNRAS.239...55P
Perez, Enrique; Penston, M. V.; Moles, M.
Referencia bibliográfica

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 239, July 1, 1989, p. 55-90.

Fecha de publicación:
7
1989
Número de autores
3
Número de autores del IAC
1
Número de citas
23
Número de citas referidas
21
Descripción
The 2.5-m Isaac Newton telescope has been used in a spectrophotometric monitoring program of high-luminosity AGN. The data acquisition and analysis techniques are first discussed. A comparison of the L-alpha, C IV, and C III profiles reveals that the profiles of different lines in a single object are not always the same as each other. An analysis of the first results of the program shows that significant emission line variations occur in high-luminosity high-redshift objects on time scales much shorter than those expected from photoionization models. These shorter time scales may be explained by the optical and UV continuum being beamed toward the observer, leading to an anisotropic broad-line region and a selection effect in favor of cases in which the axis of this anisotropy is close to the line-of-sight.
Tipo
Con árbitro
Núcleos activos de galaxias
Espectrofotometría

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