论文标题

VLA在Z = 3.65 Quasar SDSS J160705+533558中检测CO(1-0)排放

VLA detects CO(1-0) emission in the z=3.65 quasar SDSS J160705+533558

论文作者

Fogasy, Judit, Knudsen, Kirsten K., Varenius, Eskil

论文摘要

我们使用Karl G. Jansky非常大的数组(VLA)提出了高红移类星体SDSS J160705+533558($ z = 3.653 $)的CO(1--0)观察。我们检测到与类星体关联的CO排放,在$ \ sim16.8 \,\ rm kpc $投影距离距离,由$ \ sim800 \,\ rm km \,s^{ - 1} $在Velocity中分开。该系统的总分子气体质量为$ \ sim5 \ times10^{10} \,\ rm m _ {\ odot} $。通过将我们的CO检测与先前的亚毫米计(submm)观察结果进行比较,可以揭示不同排放组件之间的偏移:sumbm排放的峰值与我们的VLA数据中检测到的CO伴侣相抵消。为了解释我们的发现,我们提出了一个与天线星系相似的场景:SDSS J160705+5335558可能是一个合并系统,在该系统中,Quasar和Co伴侣是合并星系,它们的相互作用导致了尘土飞扬的,星形形成的,形成的星形覆盖区域之间的星系,这是众所周知的众所周知的象征。

We present CO(1--0) observations of the high-redshift quasar SDSS J160705+533558 ($z=3.653$) using the Karl G. Jansky Very Large Array (VLA). We detect CO emission associated with the quasar and at $\sim16.8\,\rm kpc$ projected distance from it, separated by $\sim800\,\rm km\,s^{-1}$ in velocity. The total molecular gas mass of this system is $\sim5\times10^{10}\,\rm M_{\odot}$. By comparing our CO detections with previous submillimetre (submm) observations of the source, an offset between the different emission components is revealed: the peak of the submm emission is offset from the quasar and from the CO companion detected in our VLA data. To explain our findings, we propose a scenario similar to that for the Antennae galaxies: SDSS J160705+533558 might be a merger system in which the quasar and the CO companion are the merging galaxies, whose interaction resulted in the formation of a dusty, star-forming overlap region between the galaxies that is dominant at the submm wavelengths.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源