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Optical Identification of the ROSAT All-Sky Survey Sources in Two 2° × 2° Fields1

Published online by Cambridge University Press:  12 April 2016

Y. Zhao ,
J. Zhong ,
J. Wei ,
J. Hu  and
Q. Li
Y. Zhao
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
J. Zhong
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
J. Wei
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
J. Hu
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
Q. Li
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China

Abstract

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We used the CCD camera and spectrograph of the 2.16-m telescope of Beijing Astronomical Observatory to identify the ROSAT All-Sky survey sources in two 2° Ü 2° fields. Of a total of 16 X-ray sources, we identified 13 of them as follows: two QSOs, two Seyfert galaxies, two active galaxies, two clusters of galaxies, and five late-type stars. Three X-ray sources remained unidentified.

Type
IX. Surveys and Properties of Active Galaxies and Related Sources
Information
International Astronomical Union Colloquium , Volume 159: Emission Lines in Active Galaxies: New Methods and Techniques , 1997 , pp. 427 - 428
Copyright
Copyright © Astronomical Society of the Pacific 1997

Footnotes

2

Visiting Astronomer in Max-Planck-Institut für Extraterrestrische Physik, Germany.

1

This work is supported by the National Natural Science Foundation of China.

References

Voges, W., et al. 1996, Röntgenstrahlung from the Universe, MPE Report 263, p. 637.Google Scholar