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Radiative efficiency, variability and Bondi accretion on to massive black holes: the transition from radio AGN to quasars in brightest cluster galaxies (2013)
Journal Article
Russell, H., McNamara, B., Edge, A., Hogan, M., Main, R., & Vantyghem, A. (2013). Radiative efficiency, variability and Bondi accretion on to massive black holes: the transition from radio AGN to quasars in brightest cluster galaxies. Monthly Notices of the Royal Astronomical Society, 432(1), 530-553. https://doi.org/10.1093/mnras/stt490

We examine unresolved nuclear X-ray sources in 57 brightest cluster galaxies to study the relationship between nuclear X-ray emission and accretion on to supermassive black holes. The majority of the clusters in our sample have prominent X-ray caviti... Read More about Radiative efficiency, variability and Bondi accretion on to massive black holes: the transition from radio AGN to quasars in brightest cluster galaxies.

Chandra observation of two shock fronts in the merging galaxy cluster Abell 2146 (2010)
Journal Article
Russell, H., Sanders, J., Fabian, A., Baum, S., Donahue, M., Edge, A., …O'Dea, C. (2010). Chandra observation of two shock fronts in the merging galaxy cluster Abell 2146. Monthly Notices of the Royal Astronomical Society, 406(3), 1721-1733. https://doi.org/10.1111/j.1365-2966.2010.16822.x

We present a new Chandra observation of the galaxy cluster Abell 2146 which has revealed a complex merging system with a gas structure that is remarkably similar to the Bullet cluster. The X-ray image and temperature map show a cool 2 –3 keV subclust... Read More about Chandra observation of two shock fronts in the merging galaxy cluster Abell 2146.