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Investigation of Distant Quasars

Published online by Cambridge University Press:  25 July 2014

Martik Hovhannisyan
Affiliation:
Institute of Applied Problems of Physics, Yerevan, Armenia email: [email protected]
R. Andreasyan
Affiliation:
Byurakan Astrophysical Observatory (BAO), Armenia
G. Paronyan
Affiliation:
Byurakan Astrophysical Observatory (BAO), Armenia
H. Abrahamyan
Affiliation:
Byurakan Astrophysical Observatory (BAO), Armenia
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Abstract

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To study physical and morphological characteristics of distant quasars we carry out radio-optical investigation of 30 quasars from the Cambridge 7C catalogue second area (0.097 square radians). All these objects have angular sizes less than 1 arcsec on 102 MHz images. Average values of absolute magnitudes and spectral indices have been calculated for them (M = −26.51 ± 0.25, a = 0.66±0.25). It was shown that 60% of compact radio sources from the FIRST catalogue (1400 MHz) are candidates of distant quasars.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2014 

References

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