Abstract
High resolution profiles of the Hα and Hβ emission lines of NGC 5548 have been investigated as part of the international UV/optical monitoring campaign. The Hα and Hβ difference profiles show strong variations. The broad line difference profiles consist of three components. The main component is centered at the same wavelength as the narrow component. The intensity of this component is correlated with the UV continuum. It is symmetric and has constant width at zero intensity during the variations. Furthermore a blue and red component — best visible during low active states — varies independently.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
