Implications of a High Angular Resolution Image of the Sunyaev-Zel'dovich Effect in RXJ1347-1145 - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




Implications of a High Angular Resolution Image of the Sunyaev-Zel'dovich Effect in RXJ1347-1145 - Astrophysics > Cosmology and Nongalactic Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: The most X-ray luminous cluster known, RXJ1347-1145 z=0.45, has been theobject of extensive study across the electromagnetic spectrum. We have imagedthe Sunyaev-Zel-dovich Effect SZE at 90 GHz 3.3 mm in RXJ1347-1145 at 10-resolution with the 64-pixel MUSTANG bolometer array on the Green BankTelescope GBT, confirming a previously reported strong, localized enhancementof the SZE 20- to the South-East of the center of X-ray emission. Thisenhancement of the SZE has been interpreted as shock-heated > 20 keV gascaused by an ongoing major low mass-ratio merger event. Our data support thisinterpretation. We also detect a pronounced asymmetry in the projected clusterpressure profile, with the pressure just east of the cluster core ~1.6 timeshigher than just to the west. This is the highest resolution image of the SZEmade to date.



Autor: B.S. Mason, S.R. Dicker, P.M. Korngut, M.J. Devlin, W.D. Cotton, P.M. Koch, S.M. Molnar, J.L. Sievers, J.E. Aguirre, D. Benford,

Fuente: https://arxiv.org/







Documentos relacionados