Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19710501g&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #105.01; Bulletin of the American Astronomical Society, Vol. 32, p.1577
Astronomy and Astrophysics
Astronomy
1
Scientific paper
The NOAO Deep Wide-Field Survey (NDWFS) will provide accurate positions, magnitudes in three optical bands, and shape parameters in these bands for about 106 galaxies down to an R AB magnitude of 26 (5σ detection in a 2'' aperture). Because the NDWFS covers such a large area of sky with deep imaging, it is potentially a very important tool for gravitational lensing studies. We present the first results of an investigation into the feasibility of using this data for such a study. In particular, we characterize the variation of the size and shape of the point-spread function with respect to position in the images for each filter for 5 36' by 36' subfields of the NDWFS, in order to identify potential biases in the lensing data. We also present an analysis of the star/galaxy correlation as a means of testing for systematic effects in the lensing analysis. We present a quantitative analysis of the effects that need to be taken into account when using NDWFS data to study gravitational lensing. The NOAO Deep Wide-Field Survey is being supported by the National Optical Astronomy Observatory which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the National Science Foundation. Heather Groch's research was supported by the NOAO/KPNO REU Program, funded by the National Science Foundation.
Dell'Antonio Ian
Dey Arjun
Groch H.
Jannuzi Buell Tomasson
NDWFS Team
No associations
LandOfFree
The Potential for Weak Lensing Studies with the NOAO Deep Wide-Field Survey 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 The Potential for Weak Lensing Studies with the NOAO Deep Wide-Field Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Potential for Weak Lensing Studies with the NOAO Deep Wide-Field Survey will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1727499