FeLoBALs可能意味着超亮红外星系和类星体之间的过渡的证据
Evidence that FeLoBALs may signify the transition between an ultraluminous infrared galaxy and a quasar
摘要：
我们提出中/远红外测光的9 FeLoBAL类星体，采用斯皮策太空望远镜。这九个天体在红外线上都非常明亮，其静止帧1-1000微米的光度与超铝红外线星系相当。此外，许多甚至可能是所有样本的红外辐射中，很大一部分可能来自恒星的形成，恒星的形成速率大约为每年几百个太阳质量。我们将这些结果与以前的工作相结合，提出FeLoBALs标志着星系和类星体，其中一个非常明亮的星暴接近尾声，其中一个快速吸积的超大质量黑洞是在摆脱其尘埃茧的最后阶段。因此，高红移类星体和星系中的FeLoBAL签名可能是在其演化的临界点选择源的有效方法。
英文摘要：
We present mid/far-infrared photometry of nine FeLoBAL QSOs, taken using the Spitzer space telescope. All nine objects are extremely bright in the infrared, with rest-frame 1-1000 micron luminosities comparable to those of Ultraluminous Infrared Galaxies. Furthermore, a significant fraction of the infrared emission from many, and possibly all of the sample is likely to arise from star formation, with star formation rates of order several hundred solar masses per year. We combine these results with previous work to propose that FeLoBALs mark galaxies and QSOs in which an extremely luminous starburst is approaching its end, and in which a rapidly accreting supermassive black hole is in the last stages of casting off its dust cocoon. FeLoBAL signatures in high redshift QSOs and galaxies may thus be an efficient way of selecting sources at a critical point in their evolution.
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