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19942026
most citedReconstructing the Cosmic Equation of State from Supernova distances

395 citations · 4.3k across the 120 of their papers we have counts for

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Showing 2008Show all

6 papers · 1 filter

astro-ph2008★ 55 cited

A Chandra X-ray view of Stephan's Quintet: Shocks and Star-formation

E. O'Sullivan, S. Giacintucci, J. M. Vrtilek +2

We use a deep Chandra observation to examine the structure of the hot intra-group medium of the compact group of galaxies Stephan's Quintet. The group is thought to be undergoing a…

astro-ph2008★ 54 cited

Star formation in galaxies falling into clusters along supercluster-scale filaments

Scott C. Porter, Somak Raychaudhury, Kevin A. Pimbblet +1

With the help of a statistical parameter derived from optical spectra, we show that the current star formation rate of a galaxy, falling into a cluster along a supercluster filamen…

astro-ph2008★ 23 cited

A GMRT multifrequency radio study of the isothermal core of the poor galaxy cluster AWM 4

S. Giacintucci, J. M. Vrtilek, M. Murgia +7

We present a detailed radio morphological study and spectral analysis of the wide-angle-tail radio source 4C +24.36 associated with the dominant galaxy in the relaxed galaxy cluste…

astro-ph2008★ 17 cited

The Distribution of Dark Matter in the Halo of the early-type galaxy NGC 4636

Dalia Chakrabarty, Somak Raychaudhury

We present the density structure of dark matter in the outer parts (to about 7 effective radii) of the elliptical galaxy NGC 4636, from the radial velocities of 174 globular cluste…

astro-ph2008★ 26 cited

Evidence for Non-Hydrostatic Gas Motions in the Hot ISM of Centaurus A

R. P. Kraft, M. J. Hardcastle, G. R. Sivakoff +16

We present preliminary results from a deep (600 ks) {\em Chandra} observation of the hot interstellar medium of the nearby early-type galaxy Centaurus A (Cen A). We find a surface…

astro-ph2008★ 15 cited

Globular Clusters and X-ray Point Sources in Centaurus A (NGC 5128)

Kristin A. Woodley, Somak Raychaudhury, Ralph P. Kraft +6

We detect 353 X-ray point sources, mostly low-mass X-ray binaries (LMXBs), in four Chandra observations of Centaurus A (NGC 5128), the nearest giant early-type galaxy, and correlat…