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Effects of dark matter substructures on gravitational lensing: results from the Aquariu... - 0 views

adsabs.harvard.edu/...2009MNRAS.398.1235X

advanced strong galaxies paper

shared by Tommaso Treu on 30 May 12 - No Cached

Tommaso Treu on 30 May 12

A recent treatment of the substructure problem from a theoretical point of view. The authors compare predictions from numerical simulations with observations of strong lens flux-ratio anomalies and find that strong lenses may even indicate an excess of massive satellites. (A)

<div class="cArrow"> </div><div class="cContentInner">A recent treatment of the substructure problem from a theoretical point of view. The authors compare predictions from numerical simulations with observations of strong lens flux-ratio anomalies and find that strong lenses may even indicate an excess of massive satellites. (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

shared by Douglas Clowe on 03 Jun 12 - No Cached

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 - I. Weak lensing analysis of simulated ground-based observ... - 0 views

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

advanced paper weak simulation

shared by Douglas Clowe on 03 Jun 12 - No Cached

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

arxiv.org/1204.4096

advanced weak paper simulation

shared by Douglas Clowe on 27 Jul 12 - No Cached

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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The Survival of Dark Matter Halos in the Cluster Cl 0024+16, P. Natarajan, J.-P. Kneib,... - 0 views

adsabs.harvard.edu/...2009ApJ...693..970N

advanced strong clusters paper

shared by Tommaso Treu on 30 May 12 - No Cached

Tommaso Treu on 30 May 12

This study of dark matter substructure in a cluster of galaxies, using both strong and weak lensing, covered an unprecedently wide dynamic range of cluster mass density and infalling group environments, and provided comparison with simulations regarding the cluster dark matter density profile. (A)

<div class="cArrow"> </div><div class="cContentInner">This study of dark matter substructure in a cluster of galaxies, using both strong and weak lensing, covered an unprecedently wide dynamic range of cluster mass density and infalling group environments, and provided comparison with simulations regarding the cluster dark matter density profile. (A)</div>

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Imcat, N. Kaiser - 0 views

www.ifa.hawaii.edu/imcat

advanced weak shear software

shared by Phil Marshall on 30 May 12 - No Cached

Phil Marshall on 30 May 12

Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)

<div class="cArrow"> </div><div class="cContentInner">Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)</div>

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im2shape, S. Bridle. - 0 views

www.sarahbridle.net/im2shape

advanced weak shear software

shared by Phil Marshall on 30 May 12 - No Cached

Phil Marshall on 30 May 12

Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)

<div class="cArrow"> </div><div class="cContentInner">Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)</div>

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KSBf90, C. Heymans - 0 views

www.roe.ac.uk/KSBf90

advanced weak shear software

shared by Phil Marshall on 30 May 12 - No Cached

Phil Marshall on 30 May 12

Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)

<div class="cArrow"> </div><div class="cContentInner">Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)</div>

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Shapelets, R. Massey and A. Refregier - 0 views

www.astro.caltech.edu/...shapelets

advanced weak shear software

shared by Phil Marshall on 30 May 12 - No Cached

Phil Marshall on 30 May 12

Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A).

<div class="cArrow"> </div><div class="cContentInner">Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A).</div>

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lensfit, L. Miller and T. Kitching - 0 views

www.physics.ox.ac.uk/lensfit

advanced weak shear software

shared by Phil Marshall on 30 May 12 - No Cached

Phil Marshall on 30 May 12

Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)

<div class="cArrow"> </div><div class="cContentInner">Software for measuring galaxy shapes in images, including the PSF correction. Comes with some documentation, but also has a steep learning curves if is to be used effectively. We strongly encourage testing the software on the GREAT/STEP simulations before using them on actual data. (A)</div>

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A statistical study of weak lensing by triaxial dark matter haloes: consequences for pa... - 0 views

adsabs.harvard.edu/...2007MNRAS.380..149C

advanced weak paper clusters

shared by Phil Marshall on 02 Jun 12 - No Cached

Phil Marshall on 02 Jun 12

This paper investigates an error that pervades mass measurements with weak lensing, namely the assumption of a spherical mass model when fitting a non-spherical system. It gives theoretical expectations of the effect from N-body simulations and analytic tri-axial mass models. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper investigates an error that pervades mass measurements with weak lensing, namely the assumption of a spherical mass model when fitting a non-spherical system. It gives theoretical expectations of the effect from N-body simulations and analytic tri-axial mass models. (A)</div>

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LoCuSS: comparison of observed X-ray and lensing galaxy cluster scaling relations with ... - 0 views

adsabs.harvard.edu/...2008A%26A...482..451Z

advanced paper weak clusters

shared by Phil Marshall on 02 Jun 12 - No Cached

Phil Marshall on 02 Jun 12

LoCuSS is a large sample of nearby galaxy clusters with good weak lensing and X-ray measurements; Zhang, et al., use these clusters to investigate the agreement between mass estimates based on X-ray and weak lensing, and provide a good discussion of potential sources of errors in both of these methods.

<div class="cArrow"> </div><div class="cContentInner">LoCuSS is a large sample of nearby galaxy clusters with good weak lensing and X-ray measurements; Zhang, et al., use these clusters to investigate the agreement between mass estimates based on X-ray and weak lensing, and provide a good discussion of potential sources of errors in both of these methods.</div>

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Effects of asphericity and substructure on the determination of cluster mass with weak ... - 0 views

adsabs.harvard.edu/...2004MNRAS.350.1038C

advanced weak paper clusters

shared by Phil Marshall on 02 Jun 12 - No Cached

Phil Marshall on 02 Jun 12

This paper investigates an error that pervades mass measurements with weak lensing, namely the assumption of a spherical mass model when fitting a non-spherical system. It gives theoretical expectations of the effect from N-body simulations and analytic tri-axial mass models. (A)

<div class="cArrow"> </div><div class="cContentInner">This paper investigates an error that pervades mass measurements with weak lensing, namely the assumption of a spherical mass model when fitting a non-spherical system. It gives theoretical expectations of the effect from N-body simulations and analytic tri-axial mass models. (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

shared by Douglas Clowe on 03 Jun 12 - No Cached

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

onlinelibrary.wiley.com/...full

advanced weak paper simulation

shared by Douglas Clowe on 27 Jul 12 - No Cached

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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