Uncovering The Nature Of Optically-faint Chandra X-ray Clusters

Details Uncovering The Nature Of Optically-faint Chandra X-ray Clusters Uncovering The Nature Of Optically-faint Chandra X-ray Clusters

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714910c&link_type=abstract

American Astronomical Society, AAS Meeting #217, #149.10; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present analysis of infrared observations of eight extended Chandra X-ray sources that were serendipitously discovered as part of the Chandra Multiwavelength Project (ChaMP). These X-ray sources were selected as having no optical counterparts in NOAO 4-meter observations in gri passbands (limiting depth i 23.5). Since these ``X-ray only" clusters are likely to be at high redshift, we have acquired J- and Ks-band imaging of these objects using PANIC on the Magellan telescope. Our Magellan/PANIC data allows us to confirm the high redshift nature of our sample by measuring the cluster red sequence, and ascertaining the properties of galaxies in these distant systems.

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