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 (M(subscript ☆)) increases with the accretion rate (M(subscript acc)). We compare the values of M(subscript ☆)/M(subscript acc) 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 M(subscript acc) and M(subscript ☆) and hence is important for establishing the correlation between the masses of black holes and spheroids.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call