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X-ray Selected AGN from the Extended Medium Sensitivity Survey

Published online by Cambridge University Press:  07 August 2017

Isabella M. Gioia ,
T. Maccacaro ,
S. L. Morris ,
R. Schild ,
J. T. Stocke  and
A. Wolter
Isabella M. Gioia
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Istituto di Radioastronomia, Bologna, Italy
T. Maccacaro
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Istituto di Radioastronomia, Bologna, Italy
S. L. Morris
Affiliation:
Mount Wilson and Las Campanas Observatory, Pasadena, CA
R. Schild
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
J. T. Stocke
Affiliation:
Center for Astrophysics and Space Astronomy, Boulder, CO
A. Wolter
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA

Extract

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The spectroscopic identification of the Extended Medium Sensitivity Survey (EMSS) sources now provides ∼350 X-ray selected QSOs and Seyfert galaxies (AGN in our working definition) and 30 BL Lac objects. Almost all of the AGN are spectroscopically similar to AGN found by other means but a few resemble normal galaxies so closely that they would not be identified as AGN easily by any other method.

Type
Part 3: X-rays and the Central Source
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 203 - 204
Copyright
Copyright © Kluwer 1989 

References

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