Near IR Spectroscopy of Distant Radio Galaxies

Details Near IR Spectroscopy of Distant Radio Galaxies Near IR Spectroscopy of Distant Radio Galaxies

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...18310401m&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #104.01; Bulletin of the American Astronomical Society, Vol. 25, p.1444

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained near-IR spectra of 10 radio galaxies with 2.0 < z < 2.64 using the IRS and OSIRIS at CTIO and the CRSP at KPNO. In this redshift range Hα falls in the K window and [OIII]5007 and [OII]3727 fall in the H and J windows, respectively. We have derived the Ly alpha /H alpha ratios for all of our objects and find values ranging from 2 to >6, implying a wide range in reddening to the narrow line region. We find no cases with convincing quasar-like broad lines, although higher S/N data are needed to make a strong limit. We discuss the impact of the implied reddening on the SEDs and the stellar models used in estimating ages and formation redshifts.

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