ICATE 21876
INSTITUTO DE CIENCIAS ASTRONOMICAS, DE LA TIERRA Y DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
X-Ray Selected AGN in A Merging Cluster
Autor/es:
TAYLOR, JOANNA; NORMAN, DARA; ILONA SOECHTING; COLDWELL, GEORGINA
Lugar:
Austin
Reunión:
Congreso; American Astronomical Society, AAS Meeting 219th; 2012
Institución organizadora:
American Astronomical Society
Resumen:
We investigate the X-ray AGN population and evolution in the merging
galaxy cluster DLSCL J0522.2-4820 discovered via weak gravitational
lensing shear from the Deep Lens Survey (DLS). Since weak lensing shear
is dependent only on mass, it does not introduce the biases that typical
cluster selection methods do. This cluster is of particular interest due
to both its extended multiple X-ray emission peaks and the large number
of X-ray point sources identified in the field. We measured the
redshifts of X-ray AGN as well as cluster galaxies in order to
investigate the 3-dimensional distribution and possible clustering of
AGN in galaxy clusters. Of the 125 objects in our sample, 54 are
galaxies in the cluster; the cluster redshift is determined to be
z=0.2997±0.0096. This agrees well with a previous value of
z=0.296±0.001. We identified several broad line AGN at high
redshift including a quasar pair at redshift z=1.8. Currently, we have
found no X-ray point sources to be within the cluster.
