Statistics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40593g&link_type=abstract
Spitzer Proposal ID #40593
Statistics
Scientific paper
We propose to obtain MIPS and IRAC imaging out to the virial radius for the bullet cluster, 1E0657-56, to quantify the impact of a supersonic cluster merger upon star formation in cluser galaxies. Using existing Cycle 2 IRAC observations of the cluster core, we have identified a strong correlation between PAH emission and the projected location of galaxies relative to the shock front. The proposed observations will enable us to both extend this analysis to a wider area, improving the statistics, and establish a more direct link to star formation using 24 micron emission. This data set will be used in conjunction with our extensive multiwavelength data sets, including H-alpha equivalent widths from optical spectroscopy, to provide a complete view of star formation in this unique system.
Chung Sun
Clowe Doug
Gonzalez Anthony
Jones Christine
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