类星体反馈调查：发现隐藏的 Radio-AGN 及其与宿主星系电离气体的联系,Monthly Notices of the Royal Astronomical Society

当前位置： X-MOL 学术 › Mon. Not. R. Astron. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

类星体反馈调查：发现隐藏的 Radio-AGN 及其与宿主星系电离气体的联系
Monthly Notices of the Royal Astronomical Society ( IF 4.8 ) Pub Date : 2021-02-23 , DOI: 10.1093/mnras/stab549
M E Jarvis _{1,

2,

3} , C M Harrison ₄ , V Mainieri ₂ , D M Alexander ₅ , F Arrigoni Battaia ₁ , G Calistro Rivera ₂ , C Circosta ₆ , T Costa ₁ , C De Breuck ₂ , A C Edge ₅ , A Girdhar _{2,

3} , D Kakkad _{7,

8} , P Kharb ₉ , G B Lansbury ₂ , S J Molyneux _{2,

10} , D Mukherjee ₁₁ , J R Mullaney ₁₂ , E P Farina ₁ , Silpa S ₉ , A P Thomson ₁₃ , S R Ward ₂

Affiliation

Max-Planck Institut für Astrophysik, Karl-Schwarzschild-Str. 1, D-85748 Garching, Germany
European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching, Germany
Ludwig Maximilian Universität, Professor-Huber-Platz 2, D-80539 Munich, Germany
School of Mathematics, Statistics and Physics, Newcastle University, NE1 7RU, UK
Centre for Extragalactic Astronomy, Department of Physics, Durham University, South Road, Durham DH1 3LE, UK
Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK
European Southern Observatory, Alonso de Cordova, 3107, Vitacura Casilla 19001, Santiago, Chile
Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH, UK
National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Post Bag 3, Ganeshkhind, Pune 411007, India
Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, Liverpool L3 5RF, UK
Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Pune, 411007, India
Department of Physics and Astronomy, The University of Sheffield, Hounsfield Road, Sheffield, S3 7RH, UK
Jodrell Bank Centre for Astrophysics, Department of Physics & Astronomy, The Alan Turing Building, Upper Brook Street, Manchester M13 9PL, UK

我们展示了 Quasar 反馈调查的第一个结果，一个 42 z < 的样本。0.2, [O iii] 发光的 AGN ( L[O III] > 1042.1 ergs s−1)，具有中等无线电光度（即 L1.4GHz > 1023.4 W Hz−1；中值 L1.4GHz = 5.9 × 1023 W Hz− 1）。使用来自超大阵列的高空间分辨率（~0.3-1 弧秒）、1.5-6 GHz 无线电图像，我们发现 67% 的样本具有~1-60 kpc 尺度的空间扩展无线电特征。无线电尺寸和形态表明，这些可能是紧凑、无线电响亮的 AGN 的较低无线电光度版本。通过结合射电-红外超量参数、光谱指数、射电形态和亮温，我们发现至少 57% 的样本中存在与 AGN 相关过程（例如喷流、类星体驱动的风）相关的射电辐射，或日冕发射）。尽管使用传统标准只有 9.5-21% 被归类为无线电大声。样品其余部分中无线电发射的来源尚不清楚。我们发现，无线电尺寸与 [O iii] 线宽度之间已建立的反相关性，以及与空间扩展无线电发射相关的大多数 [O iii] 发光 AGN 的已知趋势，也适用于我们的中等样本射电光度类星体。这些观察结果增加了越来越多的证据表明类星体宿主星系中的无线电发射和电离气体之间存在联系。这项工作为深入调查这个独特样本中反馈的驱动因素和影响奠定了基础。样品其余部分中无线电发射的来源尚不清楚。我们发现，无线电尺寸与 [O iii] 线宽度之间已建立的反相关性，以及与空间扩展无线电发射相关的大多数 [O iii] 发光 AGN 的已知趋势，也适用于我们的中等样本射电光度类星体。这些观察结果增加了越来越多的证据表明类星体宿主星系中的无线电发射和电离气体之间存在联系。这项工作为深入调查这个独特样本中反馈的驱动因素和影响奠定了基础。样品其余部分中无线电发射的来源尚不清楚。我们发现，无线电尺寸与 [O iii] 线宽度之间已建立的反相关性，以及与空间扩展无线电发射相关的大多数 [O iii] 发光 AGN 的已知趋势，也适用于我们的中等样本射电光度类星体。这些观察结果增加了越来越多的证据表明类星体宿主星系中的无线电发射和电离气体之间存在联系。这项工作为深入调查这个独特样本中反馈的驱动因素和影响奠定了基础。我们的中等射电光度类星体样本也成立。这些观察结果增加了越来越多的证据表明类星体宿主星系中的无线电发射和电离气体之间存在联系。这项工作为深入调查这个独特样本中反馈的驱动因素和影响奠定了基础。我们的中等射电光度类星体样本也成立。这些观察结果增加了越来越多的证据表明类星体宿主星系中的无线电发射和电离气体之间存在联系。这项工作为深入调查这个独特样本中反馈的驱动因素和影响奠定了基础。

"点击查看英文标题和摘要"

The quasar feedback survey: discovering hidden Radio-AGN and their connection to the host galaxy ionized gas

We present the first results from the Quasar Feedback Survey, a sample of 42 z < 0.2, [O iii] luminous AGNs ( L[O III] > 1042.1 ergs s−1) with moderate radio luminosities (i.e. L1.4GHz > 1023.4 W Hz−1; median L1.4GHz = 5.9 × 1023 W Hz−1). Using high spatial resolution (∼0.3–1 arcsec), 1.5–6 GHz radio images from the Very Large Array, we find that 67 per cent of the sample have spatially extended radio features on ∼1–60 kpc scales. The radio sizes and morphologies suggest that these may be lower radio luminosity versions of compact, radio-loud AGNs. By combining the radio-to-infrared excess parameter, spectral index, radio morphology, and brightness temperature, we find radio emission in at least 57 per cent of the sample that is associated with AGN-related processes (e.g. jets, quasar-driven winds, or coronal emission). This is despite only 9.5–21 per cent being classified as radio-loud using traditional criteria. The origin of the radio emission in the remainder of the sample is unclear. We find that both the established anticorrelation between radio size and the width of the [O iii] line, and the known trend for the most [O iii] luminous AGNs to be associated with spatially extended radio emission, also hold for our sample of moderate radio luminosity quasars. These observations add to the growing evidence of a connection between the radio emission and ionized gas in quasar host galaxies. This work lays the foundation for deeper investigations into the drivers and impact of feedback in this unique sample.

更新日期：2021-02-23

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南

全部期刊列表>>