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arXiv · 0704.3247

The Growth of Black Holes and Their Host Spheroids in (Sub)mm-loud QSOs at High Redshift

C. N. Hao·X. Y. Xia·S. Mao·Z. G. Deng·Hong Wu
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Abstract

We study the growth of black holes and stellar population in spheroids at high redshift using several (sub)mm-loud QSO samples. Applying the same criteria established in an earlier work, we find that, similar to IR QSOs at low redshift, the far-infrared emission of these (sub)mm-loud QSOs mainly originates from dust heated by starbursts. By combining low-z IR QSOs and high-z (sub)mm-loud QSOs, we find a trend that the star formation rate ($\Mstardot$) increases with the accretion rate ($\Mdot$). We compare the values of $\Mstardot/\Mdot$ for submm emitting galaxies (SMGs), far-infrared ultraluminous/hyperluminous QSOs and typical QSOs, and construct a likely evolution scenario for these objects. The (sub)mm-loud QSO transition phase has both high $\Mdot$ and $\Mstardot$ and hence is important for establishing the correlation between the masses of black holes and spheroids.

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C. N. Hao, X. Y. Xia, S. Mao, Z. G. Deng, Hong Wu. 2007-04-24. The Growth of Black Holes and Their Host Spheroids in (Sub)mm-loud QSOs at High Redshift. https://doi.org/10.1088/1009-9271%2F8%2F1%2F02

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