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Steps toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XIV. Intensive Optical Spectrophotometric Observations of NGC 7469статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Collier S.J., Horne K., Kaspi S., Netzer H., Peterson B.M., Wanders I., Alexander T., Bertram R., Comastri A., Gaskell C.M., Malkov Y.F., Maoz D., Mignoli M., Pogge R.W., Pronik V.I., Sergeev S.G., Snedden S., Stirpe G.M., Bochkarev N.G., Burenkov A.N., Shapovalova A.I., Wagner R.M.
- Журнал: Astrophysical Journal
- Том: 500
- Год издания: 1998
- Издательство: University of Chicago Press
- Местоположение издательства: United States
- Первая страница: 162
- DOI: 10.1086/305720
- Аннотация: We present results of an intensive 2 month campaign of ground-based spectrophotometric monitoring of the Seyfert 1 galaxy NGC 7469, with a temporal resolution \lt~ 1 day. The broad H alpha and H beta emission lines respond to ~35% ultraviolet continuum variations with an amplitude of ~10% and time delays of 5.6 +/- 1.3 days and 5.4 +/- 0.8 days, respectively. We interpret this as evidence of variable Balmer line gas ~5-6 light days from the central source in this object, widely believed to be a supermassive black hole. The virial mass of the central source implied by line widths and time delays is ~106-107 M\sun. Concomitantly, we find evidence for wavelength-dependent continuum time delays: optical continuum variations lag those at 1315 Angstroms by 1.0 +/- 0.3 days at 4865 Angstroms to 1.5 +/- 0.7 days at 6962 Angstroms. This suggests a stratified continuum reprocessing region extending several light days from the central source, possibly an accretion disk.
- Добавил в систему: Бочкарев Николай Геннадиевич