Structure and Evolution of Quasi-Stellar Radio Sources

Stellar Structure and Evolution

Evolution of Giant Radio Sources

We present radio images of two giant quasars from the Molonglo/1Jy sample, and make a comparative study of giant radio sources selected from the literature with 3CR radio sources of smaller sizes to investigate the evolution of giant sources, and test their consistency with the unified scheme. The luminosity-size diagram shows that the giant sources are less luminous than smaller-sized sources,...

The optical polarization of radio-loud and radio-intermediate broad absorption line quasi-stellar objects

On the basis of a sample of approximately 50 broad absorption line quasi-stellar objects (BAL QSOs), we investigate possible correlations between BAL QSO radio properties and other spectral characteristics, including polarization. For this purpose new polarization data have been obtained. The main result of our statistical study is the absence of significant correlations between the radio-to-op...

Evolution of Agn and Stellar Formation through Radio Surveys

The change in the slope of the radio source counts suggests the emergence of a new population of radio galaxies at mJy and sub-mJy levels. Our understanding of such faint radio sources has advanced over the last decade through increasingly sensitive radio surveys and follow-up works at optical wavelength. The sub–mJy population seems to include both star forming galaxies and classical (AGN-powe...

Formation and Evolution of Compact Stellar X-ray Sources

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