X-Ray Study of Brightest Cluster Abell 1664
Author : BT Tate and 2AT Kyadampure
Abstract :
We present results obtained from 235 ks Chandra data observation of the cool core cluster abell 1664 obtained from Chandra data center. These data were processed with CIAO 4.7 and Chandra CALDB 4.6.7. X-ray imaging of Abell 1664 showed the presence of an possible pair of ellipsoidal cavities along the East and West directions within the central region. Imaging and spectral studies showed the removal of substantial amount of matter from the core of the cluster. We have plotted tricolor map in three different energy bands of X-ray to analyze distribution of ICM this cluster, to investigate extent of the X-ray emission from this cluster, we have generated its surface brightness profile as well as sectoral radial profile reveals that the ICM distribution within this cluster is not isotropic and homogeneous. This radial profile yielded the slope and core radius parameters to be equal to β = 0.51 and rc = 11.68 pixels. Superb spatial resolution capability of Chandra was used to investigate the temperature and metallicity distribution across the cluster Abell 1664 using contour binning technique. We have also prepared tricolor map of optical DSS r-band image image, 2MASS image and X-ray image to see association of ICM in this cluster.
Keywords :
Galaxies, cluster, brightest cluster Abell 1664, X-rays
