Time variations of narrow absorption lines in high resolution quasar spectra ⋆

Author： Boissé P.   Bergeron J.   Prochaska J. X.   Péroux C.   York D. G.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|581|issue|A109-A109

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.581, Iss.issue, 2015-09, pp. : A109-A109

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Aims. We have searched for temporal variations of narrow absorption lines in high resolution quasar spectra. A sample of five distant sources were assembled, for which two spectra are available, either VLT/UVES or Keck/HIRES, which were taken several years apart.

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