X-QUEST：局域ULIRGs和类星体的全面X射线研究
X-QUEST: A Comprehensive X-ray Study of Local ULIRGs and QSOs
摘要：
我们目前的结果，从X射线部分的多波长研究的本地ULIRG和类星体称为QUEST（类星体ULIRG演化研究）。这些数据包括新的和档案X射线数据的40 ULIRGs和26 PG类星体采取钱德拉和XMM牛顿。结合传统的和硬度比光谱拟合的方法来表征这些对象的X射线属性。吸收校正后的2-10 keV的ULIRGs和PG类星体的热光度比表明，占主导地位的核活动的可能性增加沿合并序列从“冷”ULIRGs，“暖”ULIRGs，红外明亮的类星体，红外微弱的类星体。在合并之前，星暴在ULIRG的总能量中占主导地位，在合并期间和合并之后，黑洞迅速增长。这些结果与Spitzer在中红外波段获得的结果以及最近的数值模拟结果基本一致。
英文摘要：
We present results from the X-ray portion of a multi-wavelength study of local ULIRGs and QSOs called QUEST (Quasar-ULIRG Evolution STudy). The data consist of new and archival X-ray data on 40 ULIRGs and 26 PG QSOs taken with Chandra and XMM-Newton. A combination of traditional and hardness ratio spectral fitting methods is used to characterize the X-ray properties of these objects. The absorption-corrected 2-10 keV to bolometric luminosity ratios of the ULIRGs and PG QSOs suggest that the likelihood for dominant nuclear activity increases along the merger sequence from "cool" ULIRGs, "warm" ULIRGs, infrared-bright QSOs, and infrared-faint QSOs. The starburst dominates the total power in ULIRGs prior to the merger, and this is followed by rapid black hole growth during and after coalescence. These results are in general agreement with those obtained in the mid-infrared with Spitzer and recent numerical simulations.
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