AGN Feedback in Galaxy Groups: A Joint GMRT/X-ray Study

被引：5

作者：

Giacintucci, S. ^{[1
]}

Vrtilek, J. M. ^{[1
]}

O'Sullivan, E. ^{[1
]}

Raychaudhury, S. ^{[1
]}

David, L. P. ^{[1
]}

Venturi, T. ^{[1
]}

Athreya, R. ^{[1
]}

Gitti, M. ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

来源：

MONSTER'S FIERY BREATH: FEEDBACK IN GALAXIES, GROUPS, AND CLUSTERS | 2009年 / 1201卷

关键词：

Galaxy groups; Radio galaxies; X-ray observations; CLUSTER AWM-4; RADIO; CORE;

D O I：

10.1063/1.3293043

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an ongoing study of 18 nearby galaxy groups, chosen for the availability of Chandra and/or XMM-Newton data and evidence for AGN/hot intragroup gas interaction. We have obtained 235 and 610 MHz observations at the GMRT for all the groups, and 327 and 150 MHz for a few. We discuss two interesting cases - NGC 5044 and AWM4 - which exhibit different kinds of AGN/hot gas interaction. With the help of these examples we show how joining low-frequency radio data (to track the history of AGN outbursts through emission from aged electron populations) with X-ray data (to determine the state of hot gas, its disturbances, heating and cooling) can provide a unique insight into the nature of the feedback mechanism in galaxy groups.

引用

页码：229 / +

页数：2

共 6 条

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