The Evolution of Galaxy Disks in Dense Environments - Lessons from Compact Galaxy Groups (2008)
Rasmussen, J., Ponman, T. J., Verdes-Montenegro, L., Yun, M. S., Borthakur, S.
Disk galaxies in compact galaxy groups exhibit a remarkable shortfall of neutral hydrogen compared to both isolated spirals and spirals in more loose groups, but the origin of this HI deficiency...
Croston, J. H., Pratt, G. W., Boehringer, H., Arnaud, M., Pointecouteau, E., Ponman, T. J., ...
We present a study of the structural and scaling properties of the gas distributions in the intracluster medium (ICM) of 31 nearby (z < 0.2) clusters observed with XMM-Newton, which together comprise...
The nature of the ghost cavity in the NGC 741 group. (2008)
Jetha, N.N., Hardcastle, M.J., Babul, A., O'Sullivan, E., Ponman, T.J., Raychaudhury, S., ...
‘The definitive version is available at www.blackwell-synergy.com.’ Copyright Blackwell Pulishing
Maughan, B. J., Jones, L. R., Pierre, M., Andreon, S., Birkinshaw, M., Bremer, M. N., ...
We present an analysis of deep XMM-Newton and Chandra observations of the z=1.05 galaxy cluster XLSSJ022403.9-041328 (hereafter XLSSC 029), detected in the XMM-Newton large scale structure survey....
The Chandra View of Galaxy Mergers (2007)
Brassington, N. J., Ponman, T. J., Read, A. M.
From a Chandra survey of nine interacting galaxy systems the evolution of X-ray emission during the merger process has been investigated. It is found that the X-ray luminosity peaks ~300 Myr before...
Boehringer, H., Schuecker, P., Pratt, G. W., Arnaud, M., Ponman, T. J., Croston, J. H., ...
The largest uncertainty for cosmological studies using clusters of galaxies is introduced by our limited knowledge of the statistics of galaxy cluster structure, and of the scaling relations between...
The XMM Large Scale Structure survey: The X-ray pipeline and survey selection function (2006)
Pacaud, F., Pierre, M., Refregier, A., Gueguen, A., Valtchanov, I., ...
We present the X-ray pipeline developed for the purpose of the cluster search in the XMM-LSS survey. It is based on a two-stage procedure via a dedicated handling of the Poisson nature of the signal:...
XMM-Newton legacy clusters - an investigation into background removal (2006)
Temple, R. F., Pratt, G. W., Ponman, T. J., Böhringer, H., Raychaudhury, S., Rasmussen, J., ...
The cool wake around 4C 34.16 as seen by XMM-Newton (2005)
Sakelliou, I., Acreman, D. M., Hardcastle, M. J., Merrifield, M. R., Ponman, T. J., Stevens, I. R.
We present XMM-Newton observations of the wake-radio galaxy system 4C 34.16, which shows a cool and dense wake trailing behind the host galaxy of 4C 34.16. A comparison with numerical simulations is...
An XMM-Newton observation of the galaxy group MKW 4 (2003)
O'Sullivan, E., Vrtilek, J. M., Read, A. M., David, L. P., Ponman, T. J.
We present an X-ray study of the galaxy group or poor cluster MKW 4. Working with XMM data we examine the distribution and properties of the hot gas which makes up the group halo. The inner halo...
The nature and space density of fossil groups of galaxies (2003)
Jones, L. R., Ponman, T. J., Horton, A., Babul, A., Ebeling, H., Burke, D. J.
We describe the properties of a sample of galaxy groups with very unusual distributions of galaxy luminosities. The most extreme example has an X-ray luminosity similar to that of the Virgo cluster...
The Birmingham-CfA cluster scaling project - III: entropy and similarity in galaxy systems (2003)
Ponman, T. J., Sanderson, A. J. R., Finoguenov, A.
We examine profiles and scaling properties of the entropy of the intergalactic gas in a sample of 66 virialized systems, ranging in mass from single elliptical galaxies to rich clusters, for which we...
Finoguenov, A., Jones, C., Bohringer, H., Ponman, T. J.
Through a three-dimensional modeling of ASCA observations, we performed a spatially resolved X-ray spectroscopic study, extending to radii exceeding 150 kpc, for a sample of nine groups of galaxies....
Chandra Observation of Abell 2142: Survival of Dense Subcluster Cores in a Merger (2000)
Markevitch, M., Ponman, T. J., Nulsen, P., Bautz, M. W., Burke, D. J., David, L. P., ...
We use Chandra data to map the gas temperature in the central region of the merging cluster A2142. The cluster is markedly nonisothermal; it appears that the central cooling flow has been disturbed...
Chandra X-Ray Detection of the Radio Hot Spots of 3C 295 (2000)
Harris, D. E., Nulsen, P., Ponman, T. J., Bautz, M., Cameron, R. A., David, L. P., ...
An observation of the radio galaxy 3C 295 during the calibration phase of the Chandra X-Ray Observatory reveals X-ray emission from the core of the galaxy, from each of the two prominent radio hot...
Chandra Observation of Abell 2142: Survival of Dense Subcluster Cores in a Merger (2000)
Markevitch, M., Ponman, T. J., Nulsen, P., Bautz, M. W., Burke, D. J., David, L. P., ...
We use Chandra data to map the gas temperature in the central region of the merging cluster A2142. The cluster is markedly nonisothermal; it appears that the central cooling flow has been disturbed...
Chandra X-Ray Detection of the Radio Hot Spots of 3C 295 (2000)
Harris, D. E., Nulsen, P., Ponman, T. J., Bautz, M., Cameron, R. A., David, L. P., ...
An observation of the radio galaxy 3C 295 during the calibration phase of the Chandra X-Ray Observatory reveals X-ray emission from the core of the galaxy, from each of the two prominent radio hot...
A ROSAT survey of Hickson's compact galaxy groups (1996)
Ponman, T. J., Bourner, P. D., Ebeling, H., Bohringer, H.
We report the results of an almost complete survey of the X-ray properties of Hickson's compact galaxy groups with the ROSAT PSPC. Diffuse X-ray emission is detected from 22 groups. We infer that hot...