Clusters and Large-Scale Structure: the Synchrotron Keys (2009)
Rudnick, L., Alexander, P., Andernach, H., Battaglia, N., Brown, S., Brunetti, Gf., ...
For over four decades, synchrotron-radiating sources have played a series of pathfinding roles in the study of galaxy clusters and large scale structure. Such sources are uniquely sensitive to the...
Galaxy Cluster Astrophysics and Cosmology: Questions and Opportunities for the Coming Decade (2009)
Myers, S. T., Pfrommer, C., Aguirre, J., Bond, J. R., Burns, J. O., Clarke, T., ...
We are learning much about how structure forms, in particular how clusters as nodes in the cosmic web evolve and accrete matter, and about the physical processes within these objects. In the next...
Dust Formation Observed in Young Supernova Remnants with Spitzer (2009)
Rho, J., Reach, W. T., Tappe, A., Rudnick, L., Kozasa, T., Hwang, U., ...
We present dust features and masses observed in young supernova remnants (SNRs) with Spitzer IRS mapping and staring observations of four youngest supernova remnants: SNR 1E102.2-7219 (E0102) in the...
Cassiopeia A: dust factory revealed via submillimetre polarimetry (2008)
Dunne, L., Maddox, S. J., Ivison, R. J., Rudnick, L., DeLaney, T. A., Matthews, B. C., ...
If Type-II supernovae - the evolutionary end points of short-lived, massive stars - produce a significant quantity of dust (>0.1 M_sun) then they can explain the rest-frame far-infrared emission seen...
Rho, J., Kozasa, T., Reach, W. T., Smith, J. D., Rudnick, L., DeLaney, T., ...
We performed Spitzer Infrared Spectrograph mapping observations covering nearly the entire extent of the Cassiopeia A supernova remnant (SNR), producing mid-infrared (5.5-35 μm) spectra every...
An Analysis of the Synchrotron Spectrum in the Fanaroff-Riley Type I Galaxy 3C449 (2007)
We studied the evolution of relativistic electrons in the Fanaroff-Riley Type I (FR I) galaxy 3C449, by observing with the VLA at three frequencies (330, 1445 and 4835 MHz) and in all 4...
An Analysis of two Compact Steep Spectrum Sources (2007)
We have added new high resolution VLA and VLBA data of two Compact Steep Spectrum sources (3C67 and 3C190) to existing data. We find both sources have a complex spectral structure that is not...
Rho, J., Kozasa, T., Reach, W. T., Rudnick, L., DeLaney, T., Smith, J. D., ...
We performed Spitzer Infrared Spectrograph mapping observations covering nearly the entire extent of the Cassiopeia A supernova remnant (SNR), producing mid-infrared (5.5-35 micron) spectra every...
Spitzer IRAC Images and Sample Spectra of Cassiopeia A's Explosion (2006)
Ennis, J. A., Rudnick, L., Reach, W. T., Smith, J. D., Rho, J., DeLaney, T., ...
We present Spitzer IRAC images, along with representative 5.27 to 38.5 micron IRS spectra of the Cassiopeia A supernova remnant. We find that various IRAC channels are each most sensitive to a...
XMM-Newton Observations of A133: A Weak Shock Passing through the Cool Core (2004)
Fujita, Yutaka, Sarazin, Craig L., Reiprich, Thomas H., Andernach, H., Ehle, M., Murgia, M., ...
We use XMM-Newton observations of the cluster of galaxies A133 to study the X-ray spectrum of the intracluster medium (ICM). We find a cold front to the southeast of the cluster core. From the...
Kinematics of X-ray Emitting Components in Cassiopeia A (2004)
DeLaney, T., Rudnick, L., Fesen, R., Jones, T. W., Petre, R., Morse, J. A.
We present high-resolution X-ray proper motion measurements of Cassiopeia A using Chandra observations from 2000 and 2002. We separate the emission into four spectrally distinct classes:...
The First Measurement of Cassiopeia A's Forward Shock Expansion Rate (2003)
We have obtained a second epoch observation of the Cassiopeia A supernova remnant (SNR) with the Chandra X-ray Observatory to measure detailed X-ray proper motions for the first time. Both epoch...
Lowering Inferred Cluster Magnetic Field Strengths - the radio galaxy contributions (2003)
We present a detailed examination of the relationship between the magnetic field structures and the variations in Faraday Rotation across PKS1246-410, a radio source in the Centaurus cluster of...
Conference note : A taxonomy of extended radio sources in clusters of galaxies (2003)
Kempner, J. C., Blanton, E. L., Enßlin, T. A., Johnston-Hollitt, M., Clarke, T. E., Rudnick, L.
A Taxonomy of Extended Radio Sources in Clusters of Galaxies (2003)
Kempner, JC, Blanton, EC, Clarke, TE, Ensslin, TA, Johnston-Hollitt, M, Rudnick, L
The Identification of Infrared Synchrotron Radiation from Cassiopeia A (2002)
Jones, T. J., Rudnick, L., DeLaney, T., Bowden, J.
We report the discovery of polarized flux at 2.2 micron from the bright shell of the approximately 320 year old supernova remnant Cas A. The fractional polarizations are comparable at 6 cm and 2.2...
Chandra Observations of the Disruption of the Cool Core in Abell 133 (2002)
Fujita, Yutaka, Sarazin, Craig L., Kempner, Joshua C., Rudnick, L., A, O. B. Slee, Roy, . L., ...
We present the analysis of a Chandra observation of the galaxy cluster Abell 133, which has a cooling flow core, a central radio source, and a diffuse, filamentary radio source which has been...
Chandra observations of the disruption of the cool core in A133 (2002)
Fujita, Y., Sarazin, C. L., Kempner, J. C., Rudnick, L., Slee, O. B., Roy, A. L., ...
We present the analysis of a Chandra observation of the galaxy cluster A133, which has a cooling flow core, a central radio source, and a diffuse, filamentary radio source that has been classified as...
Spectral Structure in FRII Radio Galaxies and Jets (2001)
Treichel, K., Rudnick, L., Hardcastle, M., Leahy, J. P.
Using spectral tomography to separate overlapping spectral features in a sample of FRII radio galaxies, we find a variety of spatial/spectral features that are not easily described in the context of...
Chandra Detection of the Forward and Reverse Shocks in Cassiopeia-A (2001)
Gotthelf, E. V., Koralesky, B., Rudnick, L., Jones, T. W., Hwang, U., Petre, R.
We report the localization of the forward and reversed shock fronts in the young supernova remnant Cas-A using X-ray data obtained with the Chandra Observatory. High resolution X-ray maps resolve a...
Coaxial Jets and Sheaths in Wide-Angle-Tail Radio Galaxies (1999)
Katz-Stone, D. M., Rudnick, L., Butenhoff, C., O'Donoghue, A. A.
We add 20, 6 and 3.6 cm wavelength VLA observations of two WATs, 1231+674 and 1433+553, to existing VLA data at 6 and 20 cm, in order to study the variations of spectral index as a function of...
The X-ray Expansion of the Supernova Remnant Cassiopeia A (1998)
Koralesky, Barron, Rudnick, L., Gotthelf, E. V., Keohane, J. W.
We present the first X-ray expansion measurement of the SNR Cas A. We compared new ROSAT to archived Einstein HRI images with a separation of 17 years. The remnant is seen to be expanding, on...
Central Activity in the Barred Galaxy NGC 3367 (1998)
Garcia-Barreto, J. A., Rudnick, L., Franco, J., Martos, M.
We report the radio continuum structure of the barred galaxy NGC 3367 with an angular resolution of 4''.5. The radio structure indicates emission from the disk and from a triple source consisting of...