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Science in China Series A: Mathematics

, Volume 42, Issue 11, pp 1220–1223 | Cite as

Optical spectroscopy of the X-ray sources around the Seyfert galaxy NGC3516—probable evidence for non-standard cosmology

  • Jianyan Wei
  • Yaoquan Chu
  • Jingyao Hu
  • Xingfen Zhu
Article
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Abstract

In order to check the nature of the redshifts of the quasars, six X-ray sources around the Seyfert galaxy NGC3516 have been investigated, among which five were observed spectroscopically. The results show that the six sources, S1102 + 7246, S1108 + 7226, Q1106 + 7244, Q1105 + 7242, Q1105 + 7238 and Q1107 + 7232 are active galactic nuclei. Their redshifts are 0.089, 0.328, 0.690, 1.399 and 2.10, respectively. The unique characteristics of these active galactic nuclei seem to support the non-standard cosmology model.

Keywords

NGC3516 active galactic nucleus redshift 

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Copyright information

© Science in China Press 1999

Authors and Affiliations

  • Jianyan Wei
    • 1
    • 2
    • 3
  • Yaoquan Chu
    • 4
  • Jingyao Hu
    • 1
    • 3
  • Xingfen Zhu
    • 4
  1. 1.Beijing Astronomical ObservatoryChinese Academy of SciencesBeijingChina
  2. 2.National Astronomical ObservatoriesChinese Academy of SciencesBeijingChina
  3. 3.The United Lab of Chinese Optical AstronomyBeijingChina
  4. 4.Center for AstrophysicsUniversity of Science and Technology of ChinaHefeiChina

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