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arXiv 1708.07530astro-ph.GA
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射电宁静类星体中的银河系宽射电感应反馈

Galaxy wide radio induced feedback in a radio quiet quasar

Montse Villar Martin, Bjorn Emonts, Antonio Cabrera Lavers, Clive Tadhunter, Dipanjan Mukherjee, Andrew Humphrey, Javier Rodriguez Zaurin, Cristina Ramos Almeid… 展开作者

Montse Villar Martin, Bjorn Emonts, Antonio Cabrera Lavers, Clive Tadhunter, Dipanjan Mukherjee, Andrew Humphrey, Javier Rodriguez Zaurin, Cristina Ramos Almeida, Miguel Perez Torres, Patricia Bessiere

摘要:

我们发现了一个射电宁静的2型类星体(SDSS J165315.06+234943.0,昵称为“甲虫”,z=0.103),有明确的证据表明,活动星系核(AGN)的射电感应反馈作用在整个延伸的~46 kpc和~26 kpc的活动星系核。据我们所知,这是第一个无线电安静的系统,无线电感应反馈已被安全地确定在>>几个kpc的活动星系核。湍流气体也被发现远离射电轴,在垂直方向上约25千秒差距。我们提出了一个方案,其中无线电结构已穿透星系的星际介质,并逃到环星系介质。在前进的过程中,它们与原位气体相互作用,改变了其性质。我们的研究结果表明,中等功率的喷流可以是占主导地位的反馈机制,在无线电安静的系统,包括高度吸积发光AGN,辐射模式反馈可能是预期的巨大体积。

英文摘要:

We report the discovery of a radio quiet type 2 quasar (SDSS J165315.06+234943.0 nicknamed the "Beetle" at z=0.103) with unambiguous evidence for active galactic nucleus (AGN) radio induced feedback acting across a total extension of ~46 kpc and up to ~26 kpc from the AGN. To the best of our knowledge, this is the first radio quiet system where radio induced feedback has been securely identified at >>several kpc from the AGN. Turbulent gas is also found far from the radio axis, ~25 kpc in the perpendicular direction. We propose a scenario in which the radio structures have perforated the interstellar medium of the galaxy and escaped into the circumgalactic medium. While advancing, they have interacted with in-situ gas modifying its properties. Our results show that jets of modest power can be the dominant feedback mechanism acting across huge volumes in radio quiet systems, including highly accreting luminous AGN, where radiative mode feedback may be expected.

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