Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.239...55p&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 239, July 1, 1989, p. 55-90.
Astronomy and Astrophysics
Astronomy
22
Active Galactic Nuclei, Emission Spectra, Line Shape, Spectrophotometry, Carbon, Line Spectra, Luminosity, Lyman Alpha Radiation, Sky Surveys (Astronomy), Variability
Scientific paper
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.
Moles Mariano
Penston Michael V.
Pérez Enrique
No associations
LandOfFree
Spectrophotometric monitoring of high luminosity active galactic nuceli. I - The methods and data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spectrophotometric monitoring of high luminosity active galactic nuceli. I - The methods and data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrophotometric monitoring of high luminosity active galactic nuceli. I - The methods and data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1708172