Growth of Black Holes and Their Host Spheroids in (Sub) mm-loud High-Redshift QSOs
Growth of Black Holes and Their Host Spheroids in (Sub) mm-loud High-Redshift QSOs
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DOI：
10.1088/1009-9271/8/1/02
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发表时间：
2007-04
期刊：
影响因子：
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通讯作者：
C. Hao;X. Xia;S. Mao;Z. Deng;Hong Wu
中科院分区：
文献类型：
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作者：
C. Hao;X. Xia;S. Mao;Z. Deng;Hong Wu
我们使用几个（亚）mm大的QSO样本研究了高红移球体中黑洞和恒星群的生长。应用先前工作中建立的相同标准，我们发现，与低红移的红外qso类似，这些（亚）毫米大qso的远红外发射主要来自星暴加热的尘埃。结合低z IR QSOs和高z（次）mm-loud QSOs，我们发现恒星形成速率（M（下标☆））随吸积速率（M（下标acc））的增加而增加。我们比较了亚毫米发射星系（smg）、远红外超亮/超亮QSOs和典型QSOs的M（下标☆）/M（下标acc）值，并构建了这些天体可能的演化场景。（sub） mm-loud的QSO过渡阶段具有较高的M（下标acc）和M（下标☆），因此对于建立黑洞和椭球体质量之间的相关性具有重要意义。
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.