OPTICAL CONTINUUM AND EMISSION-LINE VARIABILITY OF THE SEYFERT-1 GALAXY MARKARIAN-509

Authors
CARONE TE PETERSON BM BECHTOLD J BERTRAM R BISCHOFF K DIETRICH M FILIPPENKO AV HO LC HUCHRA JP KOLLATSCHNY W KORISTA KT MATHESON T POGGE RW SHIELDS JC SMITH PS WAGNER RM WILKES BJ
Citation
Te. Carone et al., OPTICAL CONTINUUM AND EMISSION-LINE VARIABILITY OF THE SEYFERT-1 GALAXY MARKARIAN-509, The Astrophysical journal, 471(2), 1996, pp. 737-747
Citations number
36
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
471
Issue
2
Year of publication
1996
Part
1
Pages
737 - 747
Database
ISI
SICI code
0004-637X(1996)471:2<737:OCAEVO>2.0.ZU;2-1
Abstract
We report on the results of a 5 year coordinated program of spectrosco pic monitoring of the luminous Seyfert 1 galaxy Markarian 509. The H b eta and He II lambda 4686 emission lines are found to respond to conti nuum variations with time lags of similar to 80 and similar to 60 days , respectively, considerably longer than the emission-line lags measur ed for other Seyfert galaxies.