Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope
We study the effect of galaxy shape measurement errors on predicted cosmological constraints from the statistics of shear peak counts with the Large Synoptic Survey Telescope (LSST). We use the LSST Image Simulator in combination with cosmological N-body simulations to model realistic shear maps for...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Institute of Physics Publishing
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/18076 |
| _version_ | 1848749640888877056 |
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| author | Bard, D. Kratochvil, J. Chang, C. May, M. Kahn, S. Alsayyad, Y. Ahmad, Ziad Bankert, J. Connolly, A. Gibson, R. Gilmore, K. Grace, E. Haiman, Z. Hannel, M. Huffenberger, K. Jernigan, J. Jones, L. Krughoff, S. Lorenz, S. Marshall, S. Meert, A. Nagarajan, S. Peng, E. Peterson, J. Rasmussen, A. Shmakova, M. Sylvestre, N. Todd, N. Young, M. |
| author_facet | Bard, D. Kratochvil, J. Chang, C. May, M. Kahn, S. Alsayyad, Y. Ahmad, Ziad Bankert, J. Connolly, A. Gibson, R. Gilmore, K. Grace, E. Haiman, Z. Hannel, M. Huffenberger, K. Jernigan, J. Jones, L. Krughoff, S. Lorenz, S. Marshall, S. Meert, A. Nagarajan, S. Peng, E. Peterson, J. Rasmussen, A. Shmakova, M. Sylvestre, N. Todd, N. Young, M. |
| author_sort | Bard, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We study the effect of galaxy shape measurement errors on predicted cosmological constraints from the statistics of shear peak counts with the Large Synoptic Survey Telescope (LSST). We use the LSST Image Simulator in combination with cosmological N-body simulations to model realistic shear maps for different cosmological models. We include both galaxy shape noise and, for the first time, measurement errors on galaxy shapes. We find that the measurement errors considered have relatively little impact on the constraining power of shear peak counts for LSST. |
| first_indexed | 2025-11-14T07:24:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-18076 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:24:09Z |
| publishDate | 2013 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-180762023-02-22T06:24:16Z Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope Bard, D. Kratochvil, J. Chang, C. May, M. Kahn, S. Alsayyad, Y. Ahmad, Ziad Bankert, J. Connolly, A. Gibson, R. Gilmore, K. Grace, E. Haiman, Z. Hannel, M. Huffenberger, K. Jernigan, J. Jones, L. Krughoff, S. Lorenz, S. Marshall, S. Meert, A. Nagarajan, S. Peng, E. Peterson, J. Rasmussen, A. Shmakova, M. Sylvestre, N. Todd, N. Young, M. We study the effect of galaxy shape measurement errors on predicted cosmological constraints from the statistics of shear peak counts with the Large Synoptic Survey Telescope (LSST). We use the LSST Image Simulator in combination with cosmological N-body simulations to model realistic shear maps for different cosmological models. We include both galaxy shape noise and, for the first time, measurement errors on galaxy shapes. We find that the measurement errors considered have relatively little impact on the constraining power of shear peak counts for LSST. 2013 Journal Article http://hdl.handle.net/20.500.11937/18076 10.1088/0004-637X/774/1/49 Institute of Physics Publishing unknown |
| spellingShingle | Bard, D. Kratochvil, J. Chang, C. May, M. Kahn, S. Alsayyad, Y. Ahmad, Ziad Bankert, J. Connolly, A. Gibson, R. Gilmore, K. Grace, E. Haiman, Z. Hannel, M. Huffenberger, K. Jernigan, J. Jones, L. Krughoff, S. Lorenz, S. Marshall, S. Meert, A. Nagarajan, S. Peng, E. Peterson, J. Rasmussen, A. Shmakova, M. Sylvestre, N. Todd, N. Young, M. Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| title | Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| title_full | Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| title_fullStr | Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| title_full_unstemmed | Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| title_short | Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| title_sort | effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope |
| url | http://hdl.handle.net/20.500.11937/18076 |