Optical observations of rapid variability in the QSO PG 0117+213

Ekins, R.; Plunkett, S.; McBreen, Brian

doi:10.1007/BFb0030058

R. Ekins¹,
S. Plunkett¹ &
Brian McBreen¹

Part of the book series: Lecture Notes in Physics ((LNP,volume 377))

135 Accesses

Abstract

CCD imaging photometry data has been obtained on a sample of sources to search for rapid variability. Light curves and photometric data are presented for the QSO PG 0117+213 and the BL Lacertae objects 0414+009 and 0836+182. The B and V magnitudes of the QSO PG 0117+213 decreased by 0.86 and 0.30 in a time interval of 46 hours. In the rest frame of the QSO (z=1.493) these variations occurred in only 18.5 hours. Furthermore this QSO varied significantly over a period of only 25 minutes. No short timescale variability was detected in the two BL Lacertae objects.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

References

Burbidge, G. and Hewitt, A. 1987, Astron. J. 92, 1.
Article Google Scholar
Carini, M.T., Miller, H.R. and Goodrich, B.D. 1990, Astron. J. 100, 347.
Article Google Scholar
Carrasco, L. Dultzia-Hacyun, D. and Cruz-Gonzalez, I. 1985, Nature 314, 146.
Article Google Scholar
Courvoisier, T.J.L. et al. 1988, Nature 335, 330.
Article Google Scholar
Giommi, P. et al. 1990, Astrophys. J. 356, 432.
Article Google Scholar
Grauer, A.D. 1984, Astrophys. J. 277, 77.
Article Google Scholar
Howell, S.B. and Jacoby, G.J. 1986, Publ. Astr. Soc. Pacif. 98, 802.
Article Google Scholar
Miller, H.R., Carini, M.T. and Goodrich, B.D. 1989, Nature 337, 627.
Article Google Scholar
Kellermann, K.I. et al. 1989, Astron. J., 98, 1195.
Article Google Scholar
Neugebauer, G. et al. 1987, Astrophys. J. Suppl. 63, 615.
Article Google Scholar
Schmidt, M. and Green, R.F., 1983, Astrophys. J., 269, 352.
Article Google Scholar
Smith, P.S. et al. 1987, Astrophys. J. Suppl., 64, 459.
Article Google Scholar
Ulmer, M.L. et al. 1983, Astrophys. J., 270, L1.
Article Google Scholar
Wagner, S. et al. 1990, Astron. Astrophys., 235, L1.
Google Scholar
Webb, J.R. et al. 1988, Astron. J., 95, 374.
Article Google Scholar
Wills, B. and Wills, D. 1979, Astrophys. J. Suppl., 41, 689.
Article Google Scholar
Witta, P.J. 1985, Phys. Rep. 123, 117.
Article Google Scholar
Xie, G.Z. et al. 1988, Astron. J., 96, 24.
Article Google Scholar
Xie, G.Z. et al. 1989, Astron. Astrophys., 220, 89.
Google Scholar

Download references

Author information

Authors and Affiliations

Physics Department, University College, Dublin 4, Ireland
R. Ekins, S. Plunkett & Brian McBreen

Authors

R. Ekins
View author publications
You can also search for this author in PubMed Google Scholar
S. Plunkett
View author publications
You can also search for this author in PubMed Google Scholar
Brian McBreen
View author publications
You can also search for this author in PubMed Google Scholar

Editor information

Wolfgang J. Duschl Stefan J. Wagner Max Camenzind

Rights and permissions

Reprints and permissions

Copyright information

About this paper

Cite this paper

Ekins, R., Plunkett, S., McBreen, B. (1991). Optical observations of rapid variability in the QSO PG 0117+213. In: Duschl, W.J., Wagner, S.J., Camenzind, M. (eds) Variability of Active Galaxies. Lecture Notes in Physics, vol 377. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0030058

Download citation

DOI: https://doi.org/10.1007/BFb0030058
Published: 18 June 2005
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-53860-8
Online ISBN: 978-3-540-46325-2
eBook Packages: Springer Book Archive

Publish with us

Policies and ethics