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A relationship between AGN jet power and radio power
- K. Cavagnolo, B. McNamara, P. Nulsen, C. Carilli, C. Jones, L. Bîrzan
- Physics
- 29 June 2010
Using Chandra X-ray and Very Large Array radio data, we investigate the scaling relationship between jet power, P{sub jet}, and synchrotron luminosity, P{sub radio}. We expand the sample presented in…
The feedback-regulated growth of black holes and bulges through gas accretion and starbursts in cluster central dominant galaxies
- D. Rafferty, B. McNamara, P. Nulsen, M. Wise
- Physics
- 12 May 2006
We present an analysis of the growth of black holes through accretion and bulges through star formation in 33 galaxies at the centers of cooling flows. Most of these systems show evidence of cavities…
Heating Hot Atmospheres with Active Galactic Nuclei
- B. McNamara, P. Nulsen
- Physics
- 4 September 2007
High resolution X-ray spectroscopy of the hot gas in galaxy clusters has shown that the gas is not cooling to low temperatures at the predicted rates of hundreds to thousands of solar masses per…
The heating of gas in a galaxy cluster by X-ray cavities and large-scale shock fronts
- B. McNamara, P. Nulsen, E. Blanton
- PhysicsNature
- 6 January 2005
TLDR
A Systematic Study of Radio-induced X-Ray Cavities in Clusters, Groups, and Galaxies
- L. Bîrzan, D. Rafferty, B. McNamara, M. Wise, P. Nulsen
- Physics
- 13 February 2004
We present an analysis of 16 galaxy clusters, one group, and one galaxy drawn from the Chandra Data Archive. These systems possess prominent X-ray surface brightness depressions associated with…
Inside the Bondi radius of M87
- H. Russell, A. Fabian, B. McNamara, A. Broderick
- Physics
- 28 April 2015
Chandra X-ray observations of the nearby brightest cluster galaxy M87 resolve the hot gas structure across the Bondi accretion radius of the central s upermassive black hole, a measurement possible…
A High resolution study of the Hydra A cluster with Chandra: Comparison of the core mass distribution with theoretical predictions and evidence for feedback in the cooling flow
The cooling flow cluster Hydra A was observed during the orbital activation and calibration phase of the Chandra Observatory. While the X-ray image of the cluster exhibits complex structure in the…
XBootes: An X-Ray Survey of the NDWFS Bootes Field. I. Overview and Initial Results
- S. Murray, A. Kenter, Princeton University.
- Physics, Geology
- 4 April 2005
We obtained a 5 ks deep Chandra X-ray Observatory ACIS-I map of the 9.3 deg2 Bootes field of the NOAO Deep Wide-Field Survey. Here we describe the data acquisition and analysis strategies leading to…
The Powerful Outburst in Hercules A
- P. Nulsen, D. C. Hambrick, Mit
- Physics
- 15 April 2005
The radio source Hercules A resides at the center of a cooling flow cluster of galaxies at redshift z = 0.154. A Chandra X-ray image reveals a shock front in the intracluster medium (ICM) surrounding…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
- K. Nandra, D. Barret, I. Zhuravleva
- Physics
- 1 June 2013
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of two key questions in…
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