On the Photometric Redshift Estimates for FR II Radio Galaxies
O. V. Verkhodanov (1), A. I. Kopylov (1), Yu. N. Pariiskii (1), N. S., Soboleva (2), A. V. Temirova (2) ((1) Special Astrophysical Observatory RAS,, Nizhnij Arkhyz, Karachaevo-Cherkesia, Russia; (2) St. Petersburg Branch of, the Special Astrophysical Observatory RAS, Pulkovo
TL;DR
This paper confirms a stable correlation between spectroscopic and photometric redshifts for FR II radio galaxies up to z~4, supporting models of galaxy evolution and stellar populations at high redshifts.
Contribution
It validates the theoretical prediction of stellar populations in high-redshift elliptical galaxies using photometric data.
Findings
Stable correlation between spectroscopic and photometric redshifts up to z~4
Supports models of stellar populations in giant elliptical galaxies
Confirms evolutionary synthetic spectra predictions
Abstract
Using the photometric data on FR II radio galaxies obtained in the Big Trio Program and data from other sources, we confirmed the stable correlation between the spectroscopic and photometric redshifts up to z~4 determined from the evolutionary synthetic spectra of elliptical galaxies. This is a confirmation for the theoretical predictions of the existence of a stellar population at high redshifts and its subsequent evolution corresponding to the population of giant elliptical galaxies.
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