Results 11 to 20 of about 26,793 (115)

Hydrodynamic Models of Radio Galaxy Morphology: Winged and X-shaped Sources

Astrophysical Journal, 2011
We present three-dimensional hydrodynamic models of radio galaxies interacting with initially relaxed hot atmospheres and explore the significant off-axis radio lobe structures which result under certain conditions.
Hodges-Kluck, Edmund J., Reynolds, Christopher S.   +1 more
core   +3 more sources

FIRST "Winged" and X-shaped Radio Source Candidates: II. New Redshifts

, 2008
We report optical spectroscopic observations of X-shaped radio sources with the Hobby-Eberly Telescope and Multiple-Mirror Telescope, focused on the sample of candidates from the FIRST survey presented in Paper I (Cheung 2007).
Adelman-McCarthy, Andrés Jordán, Bonning, C. C. Cheung, Cheung, Condon, de Koff, de Vaucouleurs, Fanaroff, Gijs Verdoes Kleijn, Hermine Landt, Komossa, Komossa, Leahy, Leahy, Lehár, Machalski, Miller, Monet, Owen, Rottmann, Saripalli, Schlegel, Stephen E. Healey, Tadhunter, Ulrich, Urry, Zirbel   +27 more
core   +1 more source

Serendipitous Discovery of a Young Cluster of Galaxies at z ∼ 0.5 Projected Next to the Nearby Tadpole Galaxy KUG 1138 + 327

The Astrophysical Journal
Using a 90 ks Chandra ACIS-S observation in the 0.3–7 keV band, along with complementary Low-Frequency Array and Karl G. Jansky Very Large Array data in the 120–168 MHz and 1–2 GHz ranges, we study the diffuse emission around the nearby dwarf galaxy KUG ...
Q. Daniel Wang, Juergen Ott
doaj   +1 more source

X-ray/Optical/Radio Observations of a Resolved Supernova Remnant in NGC 6822

, 2004
The supernova remnant (SNR), Ho 12, in the center of the dwarf irregular galaxy NGC 6822 was previously observed at X-ray, optical, and radio wavelengths.
Albert K. H. Kong, Benjamin F. Williams, D’Odorico S., Favata F., Garcia M. R., Lequeux J., Loránt O. Sjouwerman, Magnier E. A., Massey P., Pagel B. E. J., Perrine C. D.   +10 more
core   +1 more source

VLA Polarimetry of Two Extended Radio Galaxies [PDF]

, 2000
Multi-wavelength VLA observations of two extended radio galaxies, 0235-197 and 1203+043 are presented. There is some evidence from earlier studies that these two sources exhibit low frequency (
Junor, W., Mantovani, F., Morganti, R., Padrielli, L.   +3 more
core   +2 more sources

Simulating Radio Synchrotron Morphology, Spectra, and Polarization of Cosmic Ray Driven Galactic Winds

The Astrophysical Journal
The formation of galaxies is significantly influenced by galactic winds, possibly driven by cosmic rays due to their long cooling times and better coupling to plasma compared to radiation.
H.-H. Sandy Chiu, Mateusz Ruszkowski, Timon Thomas, Maria Werhahn, Christoph Pfrommer   +4 more
doaj   +1 more source

Constraints from Faraday rotation on the magnetic field structure in the Galactic halo

, 2016
We examine the constraints imposed by Faraday rotation measures of extragalactic point sources on the structure of the magnetic field in the halo of our Galaxy.
Ferriere, Katia, Terral, Philippe
core   +2 more sources

The Abundance of X-Shaped Radio Sources I. VLA Survey of 52 Sources With Off-Axis Distortions [PDF]

, 2015
Cheung identified a sample of 100 candidate X-shaped radio galaxies using the NRAO FIRST survey; these are small-axial-ratio extended radio sources with off-axis emission.
Cohen, Jake P., Lu, Jing, Roberts, David H., Saripalli, Lakshmi, Subrahmanyan, Ravi   +4 more
core   +2 more sources

A Deep Chandra View of A2597: Bubbles, Shocks, Cold Fueling, and a Plasma Depletion Layer

The Astrophysical Journal
To examine how active galactic nucleus (AGN) feedback shapes the intracluster medium (ICM) and fuels black hole accretion in the cool-core galaxy cluster A2597, we present deep (∼600 ks) Chandra X-ray observations complemented by archival GMRT radio and ...
Osase Omoruyi, Grant Tremblay, Stefi A. Baum, Tracy E. Clarke, Pratik Dabhade, Andrew Fabian, Massimo Gaspari, Sanna Gulati, Preeti Kharb, Maxim Markevitch, Paul Nulsen, Christopher P. O’Dea, Scott Randall, Somak Raychaudhury, Sravani Vaddi, Alexey Vikhlinin, John Zuhone   +16 more
doaj   +1 more source

Discovery of the first giant double radio relic in a galaxy cluster found in the PLANCK Sunyaev-Zel'dovich cluster survey: PLCK G287.0+32.9

, 2011
We report the discovery of large scale diffuse non-thermal radio emission in PLCK G287.0+32.9, an exceptionally hot (T ~ 13 keV), massive and luminous galaxy cluster, strongly detected by the PLANCK satellite in a recent, all-sky blind search for new ...
Brown, Condon, Enßlin, Govoni, Paul, Planck Collaboration, Planck Collaboration, Planck Collaboration, Planck Collaboration, Rudnick, Röttgering, Sunyaev, Vanderlinde, Williamson   +13 more
core   +1 more source