Sub-kpc radio jets in the brightest central galaxy of the cool-core galaxy cluster RXJ1720.1+2638

被引：3
|
作者：
Perrott, Yvette C. [1 ]
Gopika, S. M. [2 ]
Edge, Alastair C. [3 ]
Grainge, Keith J. B. [4 ]
Green, David A. [5 ]
Saunders, Richard D. E. [5 ,6 ]
机构：
[1] Victoria Univ Wellington, Sch Chem & Phys Sci, POB 600, Wellington 6140, New Zealand
[2] Indian Inst Sci Educ & Res Kolkata, Dept Phys Sci, Mohanpur 741246, W Bengal, India
[3] Univ Durham, Ctr Extragalact Astron, Durham DH1 3LE, England
[4] Univ Manchester, Dept Phys & Astron, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England
[5] Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England
[6] Kavli Inst Cosmol Cambridge, Madingley Rd, Cambridge CB3 0HA, England
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2023年 / 520卷 / 01期
关键词：
radiation mechanisms: non-thermal; galaxies: active; galaxies: clusters: individual: RXJ1720.1+2638; galaxies: jets; radio continuum: galaxies; MINI-HALOS; AGN; RAY;
D O I：
10.1093/mnrasl/slac160
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The cool-core galaxy cluster RXJ1720.1+2638 hosts extended radio emission near the cluster core, known as a minihalo. The origin of this emission is still debated and one piece of the puzzle has been the question of whether the supermassive black hole in the brightest central galaxy is actively powering jets. Here, we present high-resolution e-MERLIN observations clearly indicating the presence of sub-kpc jets; this may have implications for the proposed origin of the minihalo emission, providing an ongoing source of relativistic electrons rather than a single burst sometime in the past, as previously assumed in simulations attempting to reproduce observational characteristics of minihalo-hosting systems.
引用
收藏
页码：L1 / L4
页数：4
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