Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-23T17:47:45.723Z Has data issue: false hasContentIssue false
  • English
  • Français

High-Resolution Observations of the M81 Nucleus

Published online by Cambridge University Press:  07 August 2017

William C. Keel
William C. Keel*
Affiliation:
Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487-0324, U.S.A.

Extract

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.

The nucleus of the nearby Sb galaxy M81 has been shown to exhibit many of the features prominent in luminous active galactic nuclei: a variable, compact VLBI radio source (Kellermann et al. 1976, Jones, Sramek and Terzian 1981), a central variable X-ray source (Elvis and van Speybroeck 1982, Fabbiano 1988), and broad wings of Balmer emission similar in extent to those typical to Seyfert 1 nuclei (Peimbert and Torres-Peimbert 1981, Shuder and Osterbrock 1981). The nucleus also shows a narrow-line spectrum in many ways typical of LINERs (Heckman 1980), now known to be representative of early-type spiral nuclei in general.

Type
Part 9: Intrinsically Weak AGNs
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 513 - 514
Copyright
Copyright © Kluwer 1989 

References

Dressler, A. and Richstone, D. 1988, Astrophys. J., 324, 701.Google Scholar
Elvis, M. and van Speybroeck, L. 1982, Astrophys. J. (Lett.), 257, L51.Google Scholar
Fabbiano, G. 1988, Astrophys. J., 325, 544.Google Scholar
Heckman, T.M. 1980, Astron. Astrophys., 87, 152.Google Scholar
Jones, D.L., Sramek, R.A. and Terzian, Y. 1981, Astrophys. J., 246, 28.Google Scholar
Kellermann, K.I., Shaffer, D.B., Pauliny-Toth, I.I.K., Preuss, E. and Witzel, A. 1976, Astrophys. J. (Lett), 210, L121.Google Scholar
Peimbert, M. and Torres-Peimbert, S. 1981, Astrophys. J., 245, 845.Google Scholar
Shuder, J.M. and Osterbrock, D.E. 1981, Astrophys. J., 250, 55.Google Scholar