ISPI H-band imaging of distant X-ray selected galaxy cluster candidates

Details ISPI H-band imaging of distant X-ray selected galaxy cluster candidates ISPI H-band imaging of distant X-ray selected galaxy cluster candidates

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009noao.prop..484z&link_type=abstract

NOAO Proposal ID #2009B-0484

Computer Science

Scientific paper

Distant galaxy clusters are important probes of cosmic structure evolution and ideal laboratories to study galaxy and ICM evolution. In December 2008 we have successfully completed the optical griz MOSAIC2 follow-up observations of 222 X-ray selected cluster candidates in 106 XMM-Newton fields (18 deg^2) in the sky region of the ongoing South Pole Telescope SZE survey for upcoming multi-wavelength cross-comparison and cross-calibration studies. Here we propose deep ISPI H-band imaging of the 40 remaining z⪆0.8 distant X-ray cluster candidates of the sample with the main science goals to (i) photometrically identify about 10 new galaxy clusters at z≥1.1 (ii) secure the confirmation of 20 targets with weak optical griz counterparts in the range 0.8⪉z<1.1 and significantly improve their redshift estimates using the i-H and z-H color of the cluster red-sequence, and (iii) obtain independent mass estimates based on the total NIR luminosity for all z⪆0.8 systems to complement the X-ray and SZE measures.

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