The redshift of the BL Lacertae object PKS 2005-489

Details The redshift of the BL Lacertae object PKS 2005-489 The redshift of the BL Lacertae object PKS 2005-489

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...318l..39f&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 318, July 15, 1987, p. L39-L41.

Astronomy and Astrophysics

Astrophysics

23

Bl Lacertae Objects, Elliptical Galaxies, Red Shift, Forbidden Transitions, H Alpha Line, High Resolution, Line Spectra, Nitrogen

Scientific paper

In a high-resolution spectrum of PKS 2005-489 taken on Aug. 16, 1986 two
weak emission lines (EW = about 1 A) were detected at 7031 and 7051 A.
Identification with H-alpha and the 6583-A forbidden line of N II is
proposed at a redshift z = 0.071. The observations correspond to a
relatively faint state of the source with B = about 14.7.

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