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Long-Term Variability of the Broad Hα and Hβ Emission-Line Profiles of NGC 4151

Published online by Cambridge University Press:  03 June 2010

D. Ilić ,
A. I. Shapovalova ,
L. Č. Popović ,
A. N. Burenkov ,
V. H. Chavushyan ,
A. Kovačević ,
N. G. Bochkarev  and
J. León-Tavares
D. Ilić
Affiliation:
Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia Email: dilic@matf.bg.ac.rs
A. I. Shapovalova
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz, Karachaevo-Cherkesia 369167, Russia
L. Č. Popović
Affiliation:
Astronomical Observatory, Volgina 7, 11160 Belgrade 74, Serbia
A. N. Burenkov
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz, Karachaevo-Cherkesia 369167, Russia
V. H. Chavushyan
Affiliation:
Instituto Nacional de Astrofísica, Óptica y Electrónica, Apartado Postal 51, CP 72000, Puebla, Pue. México
A. Kovačević
Affiliation:
Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia Email: dilic@matf.bg.ac.rs
N. G. Bochkarev
Affiliation:
Sternberg Astronomical Institute, Moscow, Russia
J. León-Tavares
Affiliation:
Metsähovi Radio Observatory, Helsinki University of Technology TKK, Metsähovintie 114, FIN-02540 Kylmälä, Finland
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In this work, we present the spectra of NGC 4151 observed over 11 years (from 1996 to 2006) using the SAO 6-m and 1-m telescopes (Russia), the GHAO 2.1-m telescope (Cananea, México), and the OAN-SPM 2.1-m telescope (San-Pedro, México). The procedure of spectra calibration is given by Shapovalova et al. (2008). Our analysis is focused on high-quality (S/N > 50) spectra of the Hα and Hβ emission lines.

Keywords

galaxies: activegalaxies: individual (NGC 4151)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S267: Co-Evolution of Central Black Holes and Galaxies , August 2009 , pp. 400
Copyright
Copyright © International Astronomical Union 2010

References

Shapovalova, A. I., et al. 2008, A&A, 486, 99Google Scholar
Shapovalova, A. I., et al. 2009a, New Astron. Rev., 53, 191CrossRefGoogle Scholar
Shapovalova, A. I., et al. 2009b, A&A, in press [arXiv:0910.2980]Google Scholar