Contents contributed and discussions participated by Douglas Clowe - Gravitational Lensing

Image Analysis for Cosmology: Shape Measurement Challenge Review & Results from the Map... - 2 views

arxiv.org/1204.4096

advanced weak paper simulation

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Douglas Clowe on 27 Jul 12

Results from a public shear simulation challenge that was specifically targeted for participation outside the weak lensing astronomical community. Also includes a summary of the results from the previous shear measurement challenges. (A)

<div class="cArrow"> </div><div class="cContentInner">Results from a public shear simulation challenge that was specifically targeted for participation outside the weak lensing astronomical community. Also includes a summary of the results from the previous shear measurement challenges. (A)</div>

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Image analysis for cosmology: results from the GREAT10 Galaxy Challenge, T. Kitching, e... - 1 views

onlinelibrary.wiley.com/...full

advanced weak paper simulation

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Douglas Clowe on 27 Jul 12

Results from the Great 10 challenge which includes variable shear and PSFs in the fields. (A)

<div class="cArrow"> </div><div class="cContentInner">Results from the Great 10 challenge which includes variable shear and PSFs in the fields. (A)</div>

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Results of the GREAT08 Challenge: an image analysis competition for cosmological lensin... - 0 views

adsabs.harvard.edu/...2010MNRAS.405.2044B

advanced weak paper simulation

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Douglas Clowe on 03 Jun 12

First paper from the GREAT series of challenges, which attempt to understand systematics in shear measurements by gradually increasing the complexity of blind analysis simulations. More recent results can be found at http://greatchallenges.info (A)

<div class="cArrow"> </div><div class="cContentInner">First paper from the GREAT series of challenges, which attempt to understand systematics in shear measurements by gradually increasing the complexity of blind analysis simulations. More recent results can be found at <a href="http://greatchallenges.info" rel="nofollow" target="_blank">http://greatchallenges.info</a> (A)</div>

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The Shear Testing Programme 2: Factors affecting high-precision weak-lensing analyses,"... - 0 views

adsabs.harvard.edu/...2007MNRAS.376...13M

advanced paper weak simulation

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Douglas Clowe on 03 Jun 12

Second paper in the STeP series, included more realistic models of galaxies. (A)

<div class="cArrow"> </div><div class="cContentInner">Second paper in the STeP series, included more realistic models of galaxies. (A)</div>

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The Shear Testing Programme - I. Weak lensing analysis of simulated ground-based observ... - 0 views

adsabs.harvard.edu/...2006MNRAS.368.1323H

advanced paper weak simulation

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Douglas Clowe on 03 Jun 12

Results from a large blind analysis study of shear measurements of galaxies. This paper contains good summaries of various methods to correct shear measurements for PSF smearing. (A)

<div class="cArrow"> </div><div class="cContentInner">Results from a large blind analysis study of shear measurements of galaxies. This paper contains good summaries of various methods to correct shear measurements for PSF smearing. (A)</div>

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New Constraints on the Evolution of the Stellar-to-dark Matter Connection: A combined a... - 0 views

adsabs.harvard.edu/...2012ApJ...744..159L

advanced paper weak galaxies

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Douglas Clowe on 03 Jun 12

This paper uses a large Hubble Space Telescope survey to obtain galaxy-galaxy lensing measurements at higher redshifts than previously possible, and explores the evolution of dark halo properties. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper uses a large Hubble Space Telescope survey to obtain galaxy-galaxy lensing measurements at higher redshifts than previously possible, and explores the evolution of dark halo properties. (A)</div>

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Ellipticity of dark matter haloes with galaxy-galaxy weak lensing: R. Mandelbaum, et al... - 0 views

adsabs.harvard.edu/...2006MNRAS.370.1008M

advanced paper weak galaxies

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Douglas Clowe on 03 Jun 12

This paper includes measurements of the ellipticity of dark-matter halos for different foreground galaxy properties. It includes a good discussion of potential systematic errors coming from intrinsic alignments of the background galaxies. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper includes measurements of the ellipticity of dark-matter halos for different foreground galaxy properties. It includes a good discussion of potential systematic errors coming from intrinsic alignments of the background galaxies. (A)</div>

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The Galaxy-Mass Correlation Function Measured from Weak Lensing in the Sloan Digital Sk... - 0 views

adsabs.harvard.edu/...2004AJ....127.2544S

advanced paper weak galaxies

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Douglas Clowe on 03 Jun 12

This presents a galaxy-galaxy lensing study using a database large enough to subdivide the foreground galaxy sample by various properties, and still obtain a high signal-to-noise measurement of the mass profiles. (A)

<div class="cArrow"> </div><div class="cContentInner">This presents a galaxy-galaxy lensing study using a database large enough to subdivide the foreground galaxy sample by various properties, and still obtain a high signal-to-noise measurement of the mass profiles. (A)</div>

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Properties of galaxy dark matter halos from weak lensing: H. Hoekstra, H. K. C. Yee, an... - 0 views

adsabs.harvard.edu/...2004IAUS..220..439H

advanced weak paper galaxies

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A study of galaxy-galaxy lensing using a 45 square degree imaging survey, including the first significant attempt to measure the shape of the dark-matter halo by rotating (as well as translating) the background galaxy positions and shears to a common reference frame. (A)

<div class="cArrow"> </div><div class="cContentInner">A study of galaxy-galaxy lensing using a 45 square degree imaging survey, including the first significant attempt to measure the shape of the dark-matter halo by rotating (as well as translating) the background galaxy positions and shears to a common reference frame. (A)</div>

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Weak Gravitational Lensing by Galaxies: T. G. Brainerd, R. D. Blandford, and I. Smail, ... - 0 views

adsabs.harvard.edu/...1996ApJ...466..623B

advanced weak paper galaxies

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This paper introduced the concept of galaxy-galaxy lensing, and provides scaling relations for predicting the number of background galaxies that will be needed to measure the mean mass profile around a given type of galaxy to a given accuracy. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper introduced the concept of galaxy-galaxy lensing, and provides scaling relations for predicting the number of background galaxies that will be needed to measure the mean mass profile around a given type of galaxy to a given accuracy. (A)</div>

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Shear and magnification: cosmic complementarity: L. van Waerbeke, Mon. Not. R. Astron. ... - 0 views

adsabs.harvard.edu/...2010MNRAS.401.2093V

advanced paper weak cosmology magnification

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This paper described the methodology behind using weak lensing magnification of high-redshift galaxies as a probe of comological parameters. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper described the methodology behind using weak lensing magnification of high-redshift galaxies as a probe of comological parameters. (A)</div>

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CARS: The CFHTLS-Archive-Research Survey. III. First detection of cosmic magnification ... - 0 views

adsabs.harvard.edu/...2009A%26A...507..683H

advanced weak paper cosmology magnification

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This paper studies how the distribution of faint, background galaxies is affected by the presence of bright, foreground galaxies, and models this as a product of weak lensing magnification. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper studies how the distribution of faint, background galaxies is affected by the presence of bright, foreground galaxies, and models this as a product of weak lensing magnification. (A)</div>

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Detection of Cosmic Magnification with the Sloan Digital Sky Survey: R. Scranton, et al... - 0 views

adsabs.harvard.edu/...2005ApJ...633..589S

advanced paper weak cosmology magnification

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This paper studies the change in number density of quasars with distance from bright galaxies and models the results as a gravitational lensing signal from the bright galaxies. It includes a discussion of the potential systematic errors in the measurements and why previous attempts at making this measurement were limited by the systematic errors. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper studies the change in number density of quasars with distance from bright galaxies and models the results as a gravitational lensing signal from the bright galaxies. It includes a discussion of the potential systematic errors in the measurements and why previous attempts at making this measurement were limited by the systematic errors. (A)</div>

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Catastrophic photometric redshift errors: weak-lensing survey requirements: G. Bernstei... - 0 views

adsabs.harvard.edu/...2010MNRAS.401.1399B

advanced weak cosmology paper tomography

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Douglas Clowe on 03 Jun 12

This paper discusses the impact on cosmological-parameter measurement from cosmic-shear surveys owing to catastrophic errors in photometric redshifts measurements. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper discusses the impact on cosmological-parameter measurement from cosmic-shear surveys owing to catastrophic errors in photometric redshifts measurements. (A)</div>

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Systematic effects on dark energy from 3D weak shear: T. D. Kitching, A. N. Taylor, A. ... - 0 views

adsabs.harvard.edu/...2008MNRAS.389..173K

advanced paper weak cosmology tomography

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Douglas Clowe on 03 Jun 12

This paper discusses the impact on cosmological-parameter measurement from cosmic-shear surveys owing to a variety of systematic errors. Of particular importance are the intrinsic alignments of galaxy shapes (prior to their being lensed) and the accuracy with which the lensed-galaxies redshifts can be estimated from their colors alone. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper discusses the impact on cosmological-parameter measurement from cosmic-shear surveys owing to a variety of systematic errors. Of particular importance are the intrinsic alignments of galaxy shapes (prior to their being lensed) and the accuracy with which the lensed-galaxies redshifts can be estimated from their colors alone. (A)</div>

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Dark energy constraints from cosmic shear power spectra: impact of intrinsic alignments... - 0 views

adsabs.harvard.edu/...2007NJPh....9..444B

advanced paper weak cosmology tomography

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Douglas Clowe on 03 Jun 12

This paper discusses the impact on cosmological-parameter measurement from cosmic-shear surveys owing to the intrinsic alignments of galaxy shapes (prior to their being lensed). (A)

<div class="cArrow"> </div><div class="cContentInner">This paper discusses the impact on cosmological-parameter measurement from cosmic-shear surveys owing to the intrinsic alignments of galaxy shapes (prior to their being lensed). (A)</div>

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Probing cosmology with weak lensing peak counts: J. M. Kratochvil, Z. Haiman, and M. Ma... - 0 views

adsabs.harvard.edu/...2010PhRvD..81d3519K

advanced paper weak clusters cosmology

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Douglas Clowe on 03 Jun 12

This paper describes how to use shear detected mass peaks to measure the evolution of the power spectrum, and thereby cosmological parameters, in a method complementary to cosmic-shear analysis. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper describes how to use shear detected mass peaks to measure the evolution of the power spectrum, and thereby cosmological parameters, in a method complementary to cosmic-shear analysis. (A)</div>

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Cosmology with the shear-peak statistics: J. P. Dietrich, and J. Hartlap, Mon. Not. R. ... - 0 views

adsabs.harvard.edu/...2010MNRAS.402.1049D

advanced weak clusters paper cosmology

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Douglas Clowe on 03 Jun 12

This paper describes how to use shear detected mass peaks to measure the evolution of the power spectrum, and thereby cosmological parameters, in a method complementary to cosmic-shear analysis. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper describes how to use shear detected mass peaks to measure the evolution of the power spectrum, and thereby cosmological parameters, in a method complementary to cosmic-shear analysis. (A)</div>

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First Results on Shear-selected Clusters from the Deep Lens Survey: Optical Imaging, Sp... - 0 views

adsabs.harvard.edu/...2006ApJ...643..128W

advanced weak paper clusters

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Douglas Clowe on 03 Jun 12

This paper describes an attempt to detect clusters by mass in a blank-field survey, thereby avoiding selection bias when measuring the evolution of the mass function. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper describes an attempt to detect clusters by mass in a blank-field survey, thereby avoiding selection bias when measuring the evolution of the mass function. (A)</div>

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Evidence of the accelerated expansion of the Universe from weak lensing tomography with... - 0 views

adsabs.harvard.edu/...2010A%26A...516A..63S

advanced weak paper cosmology tomography

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Douglas Clowe on 03 Jun 12

This paper describes measurements of cosmic shear from a 2 square degree Hubble Space Telescope survey, combined with photometric redshifts of the lensed galaxies. The addition of the photometric redshifts allowed the authors to measure the evolution of the mass power-spectrum, which provides additional information about the cosmological model beyond what the integrated power-spectrum can provide.

<div class="cArrow"> </div><div class="cContentInner">This paper describes measurements of cosmic shear from a 2 square degree Hubble Space Telescope survey, combined with photometric redshifts of the lensed galaxies. The addition of the photometric redshifts allowed the authors to measure the evolution of the mass power-spectrum, which provides additional information about the cosmological model beyond what the integrated power-spectrum can provide.</div>

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