Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-21T05:24:26.406Z Has data issue: false hasContentIssue false
  • English
  • Français

The link between broad emission line fluctuations and non-thermal emission from the inner AGN jet

Published online by Cambridge University Press:  24 March 2015

J. León Tavares ,
V. Chavushyan ,
A. Lobanov ,
E. Valtaoja  and
T. G. Arshakian
J. León Tavares
Affiliation:
Instituto Nacional de Astrofísica Óptica y Electrónica (INAOE), Apartado Postal 51 y 216, 72000, Puebla, México email: leon.tavares@inaoep.mx
V. Chavushyan
Affiliation:
Instituto Nacional de Astrofísica Óptica y Electrónica (INAOE), Apartado Postal 51 y 216, 72000, Puebla, México email: leon.tavares@inaoep.mx
A. Lobanov
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
E. Valtaoja
Affiliation:
Tuorla Observatory, Department of Physics and Astronomy, University of Turku, 20100 Turku, Finland
T. G. Arshakian
Affiliation:
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

AGN reverberate when the broad emission lines respond to changes of the ionizing thermal continuum emission. Reverberation measurements have been commonly used to estimate the size of the broad-line region (BLR) and the mass of the central black hole. However, reverberation mapping studies have been mostly performed on radio-quiet sources where the contribution of the jet can be neglected. In radio-loud AGN, jets and outflows may affect substantially the relation observed between the ionizing continuum and the line emission. To investigate this relation, we have conducted a series of multi-wavelength studies of radio-loud AGN, combining optical spectral line monitoring with regular VLBI observations. Our results suggest that at least a fraction of the broad-line emitting material can be located in a sub-relativistic outflow ionized by non-thermal continuum emission generated in the jet at large distances (> 1 pc) from the central engine of AGN. This finding may have a strong impact on black hole mass estimates based on measured widths of the broad emission lines and on the gamma-ray emission mechanisms.

Keywords

galaxies: nucleigalaxies: jetsquasars: emission linesgalaxies: individual (3C 120, 3C 454.3, 3C 390.3)gamma rays: observations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S313: Extragalactic jets from every angle , September 2014 , pp. 43 - 47
Copyright
Copyright © International Astronomical Union 2015 

References

Arshakian, T. G., León-Tavares, J., Lobanov, A. P., et al. 2010, MNRAS, 401, 1231CrossRefGoogle Scholar
Belokon', E. T. 1987, Astrophysics, 27, 588CrossRefGoogle Scholar
Blandford, R. D. & McKee, C. F. 1982, ApJ, 255, 419Google Scholar
Grier, C. J., Peterson, B. M., Pogge, R. W., et al. 2012, ApJ, 755, 60CrossRefGoogle Scholar
Isler, J. C., Urry, C. M., Coppi, P., et al. 2013, ApJ, 779, 100CrossRefGoogle Scholar
León-Tavares, J., Lobanov, A. P., Chavushyan, V. H., et al. 2010, ApJ, 715, 355CrossRefGoogle Scholar
León-Tavares, J., Valtaoja, E., Chavushyan, V. H., et al. 2011a, MNRAS, 411, 1127Google Scholar
León-Tavares, J., Valtaoja, E., Tornikoski, M., et al. 2011b, A&A, 532, A146Google Scholar
León-Tavares, J., Chavushyan, V., Patiño-Álvarez, V., et al. 2013, ApJ (Letters), 763, L36CrossRefGoogle Scholar
León Tavares, J., Kotilainen, J., Chavushyan, V., et al. 2014, ApJ, 795, 58CrossRefGoogle Scholar
Perez, E., Penston, M. V., & Moles, M. 1989, MNRAS, 239, 75Google Scholar
Peterson, B. M. 1993, PASP, 105, 247Google Scholar
Shapovalova, A. I., Burenkov, A. N., Carrasco, L., et al. 2001, A&A, 376, 775Google Scholar
Shapovalova, A. I., Popović, L. Č., Burenkov, A. N., et al. 2013, A&A, 559, A10Google Scholar
Smith, P. S., Montiel, E., Rightley, S., et al. 2009, eConf Proceedings C091122, arXiv:0912.3621Google Scholar
Vestergaard, M. & Peterson, B. M. 2006, ApJ, 641, 689CrossRefGoogle Scholar