NIRSPEC Spectra of High-z Radio Galaxies

Details NIRSPEC Spectra of High-z Radio Galaxies NIRSPEC Spectra of High-z Radio Galaxies

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.5015c&link_type=abstract

American Astronomical Society, 196th AAS Meeting, #50.15; Bulletin of the American Astronomical Society, Vol. 32, p.753

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present rest-frame optical spectra of four high-z (2.2 < z < 2.5) radio galaxies: 4c40.36, 4c48.48, 4c40.02, and MRC 2025-218. The spectra were taken during the commissioning of the NIRSPEC spectrograph on the Keck II telescope, and are the highest resolution, highest sensitivity spectra of these radio galaxies available to date. Many previously undetected lines are identified, including Hβ , [OIII] (4959/5007), [OII] (3727), [OI] (6300), Hα , [NII] (6548/6583) and [SII] (6716/6713). Three of the objects show strong off-nuclear emission and we derive for the first time rest-frame optical line ratios for these regions.

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