An Intrinsic Baldwin Effect in the Hβ Broad Emission Line in the Spectrum of NGC 5548 | Zendy

Karoline M. Gilbert | Zendy; B. M. Peterson | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

An Intrinsic Baldwin Effect in the Hβ Broad Emission Line in the Spectrum of NGC 5548

Author(s) -

Karoline M. Gilbert,

B. M. Peterson

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/368112

Subject(s) - emission spectrum , physics , astrophysics , line (geometry) , galaxy , nonlinear system , active galactic nucleus , broad spectrum , spectral line , astronomy , quantum mechanics , geometry , chemistry , mathematics , combinatorial chemistry

We investigate the possibility of an intrinsic Baldwin Effect (i.e.,nonlinearemission-line response to continuum variations) in the broad H-beta emissionline of the active galaxy NGC 5548 using cross-correlation techniques to removelight travel-time effects from the data. We find a nonlinear relationshipbetween the H-beta emission line and continuum fluxes that is in good agreementwith theoretical predictions. We suggest that similar analysis of multiplelines might provide a useful diagnostic of physical conditions in thebroad-line region.Comment: 15 pages, 4 figures. Accepted for publication in The Astrophysical Journa

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research