260 citations · 1.1k across the 27 of their papers we have counts for
7 papers · 1 filter
Where Centaurus A gets its X-ray knottiness
D. M. Worrall, M. Birkinshaw, R. P. Kraft +15
We report an X-ray spectral study of the transverse structure of the Centaurus A jet using new data from the Chandra Cen A Very Large Project. We find that the spectrum steepens wi…
The nature of the ghost cavity in the NGC 741 group
Nazirah N. Jetha, Martin J. Hardcastle, Arif Babul +4
We discuss the effects of energy injection into the intra-group medium of the group of galaxies associated with NGC 741. The X-ray emission reveals a large bubble, which in the abs…
Low-Mass X-ray Binaries and Globular Clusters in Centaurus A
Andres Jordan, Gregory R. Sivakoff, Dean E. McLaughlin +19
We present results of Hubble Space Telescope and Chandra X-ray Observatory observations of globular clusters (GCs) and low-mass X-ray binaries (LMXBs) in the central regions of Cen…
New results on particle acceleration in the Centaurus A jet and counterjet from a deep Chandra observation
M. J. Hardcastle, R. P. Kraft, G. R. Sivakoff +16
We present new deep Chandra observations of the Centaurus A jet, with a combined on-source exposure time of 719 ks. These data allow detailed X-ray spectral measurements to be made…
Robust mixtures in the presence of measurement errors
Jianyong Sun, Ata Kaban, Somak Raychaudhury
We develop a mixture-based approach to robust density modeling and outlier detection for experimental multivariate data that includes measurement error information. Our model is de…
The Mass Assembly of Fossil Groups of Galaxies in the Millennium Simulation
Ali Dariush, Habib G. Khosroshahi, Trevor J. Ponman +3
The evolution of present-day fossil galaxy groups is studied in the Millennium Simulation. Using the corresponding Millennium gas simulation and semi-analytic galaxy catalogues, we…