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Program Number |
160 |
| Program Name | 2MASS Abell Cluster Survey |
| Principal Investigator |
Margaret Geller [email] [web] |
| Co-Investigator(s) | Massimo Ramella (Trieste), Hans Boehringer (MPE) |
Abstract |
We request 5 nights to acquire complete redshift surveys (to 2MASS K = 13.2) within the virial regions of 13 Abell clusters of galaxies with redshift 0.05 < z < 0.62. By using the redshifts to obtain robust mass and K-band luminosity estimates to large radius, we plan to explore the scaling relations between x-ray and K-band cluster parameters. 2MACS, our total sample of 73 cleanly surveyed northern Abell clusters will enable further investigation of additional aspects of galaxy formation theories including : (1) variation in mass-to-light ratio with cluster mass and (2) change in the efficiency of galaxy formation with cluster mass (scaling of the dark matter halo occupation number with mass). |
| Spectra | [search in archive] |
| Trimester(s) data taken | 2005bc |
| Papers | none |
Other links
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none |
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