A Suzaku Search for Non-thermal Emission at Hard X-ray Energies in the Coma Cluster (2009)
Wik, Daniel R., Sarazin, Craig L., Finoguenov, Alexis, Matsushita, Kyoko, Nakazawa, Kazuhiro, Clarke, Tracy E.
The brightest cluster radio halo known resides in the Coma cluster of galaxies. The relativistic electrons producing this diffuse synchrotron emission should also produce inverse Compton emission...
A Suzaku search for nonthermal emission at hard X-ray energies in the coma cluster (2009)
Wik, Daniel R., Sarazin, Craig L., Finoguenov, Alexis, Matsushita, Kyoko, Nakazawa, Kazuhiro, Clarke, Tracy E.
Hard X-ray properties of the merging cluster Abell 3667 as observed with Suzaku (2009)
Nakazawa, Kazuhiro, Sarazin, Craig L., Kawaharada, Madoka, Kitaguchi, Takao, Okuyama, Sho, Makishima, Kazuo, ...
Hard X-ray Properties of the Merging Cluster Abell 3667 as Observed with Suzaku (2008)
Nakazawa, Kazuhiro, Sarazin, Craig L., Kawaharada, Madoka, Kitaguchi, Takao, Okuyama, Sho, Makishima, Kazuo, ...
Wide-band Suzaku data on the merging cluster Abell 3667 were examined for hard X-ray emission in excess to the known thermal component. Suzaku detected X-ray signals in the wide energy band from 0.5...
The FRII Broad Line Seyfert 1 Galaxy: PKSJ 1037-2705 (2008)
Punsly, Brian, Clarke, Tracy E., Tingay, Steven, Gutierrez, Carlos M., Rasmussen, Jesper, Colbert, Ed
In this article, we demonstrate that PKSJ 1037-2705 has a weak accretion flow luminosity, well below the Seyfert1/QSO dividing line, weak broad emission lines (BELs) and moderately powerful FRII...
A Chandra Observation of Abell 13: Investigating the Origin of the Radio Relic (2007)
Juett, Adrienne M., Sarazin, Craig L., Clarke, Tracy E., Andernach, Heinz, Ehle, Matthias, Fujita, Yutaka, ...
We present results from the Chandra X-ray observation of Abell 13, a galaxy cluster that contains an unusual noncentral radio source, also known as a radio relic. This is the first pointed X-ray...
X-ray Detection of the Proto Supermassive Binary Black Hole at the Centre of Abell 400 (2006)
Hudson, Daniel S., Reiprich, Thomas H., Clarke, Tracy E., Sarazin, Craig L.
We report the first X-ray detection of a proto-supermassive binary black hole at the centre of Abell 400. Using the Chandra ACIS, we are able to clearly resolve the two active galactic nuclei in 3C...
Deep 1.4 GHz VLA Observations of the Radio Halo and Relic in Abell 2256 (2006)
Clarke, Tracy E., Ensslin, Torsten A.
We present deep VLA observations of the merging galaxy cluster Abell 2256. This cluster is known to possess diffuse steep spectrum radio relic emission in the peripheral regions. Our new observations...
Faraday Rotation Observations of Magnetic Fields in galaxy Clusters (2004)
The presence of magnetic fields in the intracluster medium in clusters of galaxies has been revealed through several different observational techniques. These fields may be dynamically important in...
The Complex Cooling Core of Abell 2029: Radio and X-ray Interactions (2004)
Clarke, Tracy E., Blanton, Elizabeth L., Sarazin, Craig L.
We present an analysis of Chandra observations of the central regions of the cooling flow cluster Abell 2029. We find a number of X-ray filaments in the central 40 kpc, some of which appear to be...
A Taxonomy of Extended Radio Sources in Clusters of Galaxies (2003)
Kempner, Joshua C., Blanton, Elizabeth L., Clarke, Tracy E., Ensslin, Torsten A., Johnston-Hollitt, Melanie, Rudnick, Lawrence
At the request of the conference attendees, we have compiled a classification of extended radio sources in clusters. These range from scales of tens of parsecs to over a megaparsec in scale, and...
Probing magnetic fields in clusters of galaxies /--Tracy E. Clarke. (2000)
Thesis (Ph. D.)--University of Toronto, 2000.
Probing magnetic fields in clusters of galaxies (2000)
grantor: University of Toronto
The DDO IVC Distance Project (1998)
Gladders, Michael D., Clarke, Tracy E., Burns, Christopher R., Attard, Allen, Casey, Michael P., Hamilton, Devon, ...
We present the first set of distance limits from the David Dunlap Observatory Intermediate Velocity Cloud (DDO IVC) distance project. Such distance measures are crucial to understanding the origins...