Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2011-02-28
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
Astrophysical Journal accepted version
Scientific paper
We use a dense redshift survey in the foreground of the Subaru GTO2deg^2 weak lensing field (centered at $\alpha_{2000}$ = 16$^h04^m44^s$;$\delta_{2000}$ =43^\circ11^{\prime}24^{\prime\prime}$) to assess the completeness and comment on the purity of massive halo identification in the weak lensing map. The redshift survey (published here) includes 4541 galaxies; 4405 are new redshifts measured with the Hectospec on the MMT. Among the weak lensing peaks with a signal-to-noise greater that 4.25, 2/3 correspond to individual massive systems; this result is essentially identical to the Geller et al. (2010) test of the Deep Lens Survey field F2. The Subaru map, based on images in substantially better seeing than the DLS, enables detection of less massive halos at fixed redshift as expected. We demonstrate that the procedure adopted by Miyazaki et al. (2007) for removing some contaminated peaks from the weak lensing map improves agreement between the lensing map and the redshift survey in the identification of candidate massive systems.
Dell'Antonio Ian Pietro
Fabricant Daniel G.
Geller Margaret J.
Kurtz Michael J.
Miyazaki Satoshi
No associations
LandOfFree
Testing Weak Lensing Maps With Redshift Surveys: A Subaru Field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Testing Weak Lensing Maps With Redshift Surveys: A Subaru Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing Weak Lensing Maps With Redshift Surveys: A Subaru Field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-426251