论文标题

射流重新定位是否难以捉摸的触发因素在射电星系中抑制恒星形成吗?

Is jet re-orientation the elusive trigger for star formation suppression in radio galaxies?

论文作者

Garofalo, David, Moravec, Emily, Macconi, Duccio, Singh, Chandra B.

论文摘要

与无线电类星体的时间演变相关的JET重新定位解释了X形射线星系的形成及其对孤立环境的偏爱。但是,由于通常在密集的环境(例如组/簇)中没有发现X形射线星系,因此忽略了组和簇的射流重新定位现象。我们仔细研究了FRII喷气机的Fri喷气机的重新定位,并发现它可能构成了尚未确定的未鉴定触发因素,即射电星系中恒星形成抑制。我们展示了如何在这种情况下解释最近探索的“红色红色间歇泉”星系,并最终揭示了为什么FRII射线星系在星形形成/抑制与FRI射线星系相比的一侧的一侧有更深入的了解。

Jet re-orientation associated with the time evolution of radio quasars explains the formation of X-shaped radio galaxies and their preference for isolated environments. But since X-shaped radio galaxies are generally not found in dense environments (e.g. groups/clusters), the jet re-orientation phenomenon for radio galaxies in groups and clusters has been ignored. We take a closer look at the re-orientation of FRI jets with respect to FRII jets, and find that it may constitute the as-yet unidentified trigger for star formation suppression in radio galaxies. We show how the recently explored radio "red geyser" galaxies can be interpreted in this context and ultimately reveal a deeper understanding of why FRII radio galaxies are on one side of the star formation enhancement/suppression divide compared to FRI radio galaxies.

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