Cross-correlation Weak Lensing of SDSS Galaxy Clusters. I. Measurements (2009)
Sheldon, Erin S., Johnston, David E., Scranton, Ryan, Koester, Benjamin P., McKay, Timothy A., Oyaizu, Hiroaki, ...
This is the first in a series of papers on the weak lensing effect caused by clusters of galaxies in Sloan Digital Sky Survey. The photometrically selected cluster sample, known as MaxBCG, includes...
Cosmological Constraints from the SDSS maxBCG Cluster Catalog (2009)
Rozo, Eduardo, Wechsler, Risa H., Rykoff, Eli S., Annis, James T., Becker, Matthew R., Evrard, August E., ...
We use the abundance and weak lensing mass measurements of the SDSS maxBCG cluster catalog to simultaneously constrain cosmology and the richness--mass relation of the clusters. Assuming a flat...
Estimating the Redshift Distribution of Faint Galaxy Samples (2008)
Lima, Marcos, Cunha, Carlos E., Oyaizu, Hiroaki, Frieman, Joshua, Lin, Huan, Sheldon, Erin S.
We present an empirical method for estimating the underlying redshift distribution N(z) of galaxy photometric samples from photometric observables. The method does not rely on photometric redshift...
The Galaxy Content of SDSS Clusters and Groups (2007)
Hansen, Sarah M., Sheldon, Erin S., Wechsler, Risa H., Koester, Benjamin P.
Imaging data from the Sloan Digital Sky Survey are used to characterize the population of galaxies in groups and clusters detected with the MaxBCG algorithm. We investigate the dependence of...
Johnston, David E., Sheldon, Erin S., Wechsler, Risa H., Rozo, Eduardo, Koester, Benjamin P., Frieman, Joshua A., ...
We interpret and model the statistical weak lensing measurements around 130,000 groups and clusters of galaxies in the Sloan Digital Sky Survey presented by Sheldon et al. 2007 (Paper I). We present...
Cross-correlation Weak Lensing of SDSS Galaxy Clusters I: Measurements (2007)
Sheldon, Erin S., Johnston, David E., Scranton, Ryan, Koester, Ben P., McKay, Timothy A., Oyaizu, Hiroaki, ...
This is the first in a series of papers on the weak lensing effect caused by clusters of galaxies in Sloan Digital Sky Survey. The photometrically selected cluster sample, known as MaxBCG, includes...
Cross-correlation Weak Lensing of SDSS Galaxy Clusters III: Mass-to-light Ratios (2007)
Sheldon, Erin S., Johnston, David E., Masjedi, Morad, McKay, Timothy A., Blanton, Michael R., Scranton, Ryan, ...
We present measurements of the excess mass-to-light ratio measured aroundMaxBCG galaxy clusters observed in the SDSS. This red sequence cluster sample includes objects from small groups with masses...
A Galaxy Photometric Redshift Catalog for the Sloan Digital Sky Survey Data Release 6 (2007)
Oyaizu, Hiroaki, Lima, Marcos, Cunha, Carlos E., Lin, Huan, Frieman, Joshua, Sheldon, Erin S.
We present and describe a catalog of galaxy photometric redshifts (photo-z's) for the Sloan Digital Sky Survey (SDSS) Data Release 6 (DR6). We use the Artificial Neural Network (ANN) technique to...
Cosmological Constraints from SDSS maxBCG Cluster Abundances (2007)
Rozo, Eduardo, Wechsler, Risa H., Koester, Benjamin P., McKay, Timothy A., Evrard, August E., Johnston, David, ...
We perform a maximum likelihood analysis of the cluster abundance measured in the SDSS using the maxBCG cluster finding algorithm. Our analysis is aimed at constraining the power spectrum...
MaxBCG: A Red Sequence Galaxy Cluster Finder (2007)
Koester, Benjamin P., McKay, Timothy A., Annis, James, Wechsler, Risa H., Evrard, August E., Rozo, Eduardo, ...
Measurements of galaxy cluster abundances, clustering properties, and mass to- light ratios in current and future surveys can provide important cosmological constraints. Digital wide-field imaging...
SDSS J1029+2623: A Gravitationally Lensed Quasar with an Image Separation of 22.5 Arcseconds (2006)
Inada, Naohisa, Oguri, Masamune, Morokuma, Tomoki, Doi, Mamoru, Yasuda, Naoki, Becker, Robert H., ...
We report the discovery of a cluster-scale lensed quasar, SDSS J1029+2623, selected from the Sloan Digital Sky Survey. The lens system exhibits two lensed images of a quasar at z_s=2.197. The image...
Chen, Jacqueline, Kravtsov, Andrey V., Prada, Francisco, Sheldon, Erin S., Klypin, Anatoly A., Blanton, Michael R., ...
We use the Sloan Digital Sky Survey (SDSS) spectroscopic sample to constrain the projected radial distribution of satellites around isolated ~ L* galaxies. We employ mock galaxy catalogs derived from...
Johnston, David E., Sheldon, Erin S., Tasitsiomi, Argyro, Frieman, Joshua A., Wechsler, Risa, McKay, Timothy A.
We present a new non-parametric method for determining mean 3D density and mass profiles from weak lensing measurements around stacked samples of galaxies or clusters, that is, from measurement of...
SDSS J0903+5028: A New Gravitational Lens (2003)
Johnston, David E., Richards, Gordon T., Frieman, Joshua A., Keeton, Charles R., Strauss, Michael A., Becker, Robert H., ...
We report the discovery of a new gravitationally lensed quasar from the Sloan Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS spectroscopy as a Luminous Red Galaxy...
Dissertation (Ph.D.)--University of Michigan.