Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...18111106b&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #111.06; Bulletin of the American Astronomical Society, Vol. 24, p.1298
Astronomy and Astrophysics
Astronomy
Scientific paper
Wide-Angle Tailed (WAT) sources are typically 200 kpc in diameter, associated with centrally dominant cluster galaxies, and have dual straight jets which disrupt and symmetrically bend forming diffuse radio tails. Three recent observations suggest an interesting connection between the cluster environment and the radio structure. First, there is a strong correlation between the position angles of the major axes in the radio, x-ray, and optical. Second, unlike 70%-90% of clusters with dominant galaxies, WAT clusters generally do not have strong x-ray cooling inflows. Third, the observed peculiar motions of WAT galaxies (<200 km/s) may be too small to explain the bending of the radio tails via ram pressure. Using Einstein and ROSAT x-ray images, and new N-body/hydro simulations, we will explain the above observations using a cluster/subcluster merger scenario. This work was supported by NSF grant AST-9012353 and NASA grants NAGW-5152 and NAG 5-1737.
Burns O. Jr. J.
Owen Frazer N.
Pinkney Jason
Rhee George
Roettiger Kurt
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