Redshift Evolution of the Correlation Function Peter Capak J. Blazek, D. Sanders, I. Szapudi, N....
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Transcript of Redshift Evolution of the Correlation Function Peter Capak J. Blazek, D. Sanders, I. Szapudi, N....
Redshift Evolution of the Correlation Function
Peter Capak
J. Blazek, D. Sanders, I. Szapudi, N. Scoville
Kyoto, May 23, 2005
Correlation function
• Probability above random that you will find two objects at a given (projected) distance
• Should trace the growth of structure• eSpICE allows for computation of 2pt function
in ~30sec for cosmos data– Allows for many measurements as a function of
many different parameters
• Results shown are preliminary
Correlation with Redshift and Magnitude
Correlation with Redshift and Type
Preliminary Results
• Brighter and older galaxies are more strongly clustered
• Increase in the correlation strength with redshift for bright galaxies
• Increase in the correlation slope with redshift