Zobrazeno 1 - 10
of 37
pro vyhledávání: '"The Dark Energy Science Collaboration"'
Autor:
S. Liu, W. M. Wood-Vasey, R. Armstrong, G. Narayan, B. O. Sánchez, The Dark Energy Science Collaboration
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 10 (2024)
We evaluate the performance of the Legacy Survey of Space and Time Science Pipelines Difference Image Analysis (DIA) on simulated images. By adding synthetic sources to galaxies on images, we trace the recovery of injected synthetic sources to evalua
Externí odkaz:
https://doaj.org/article/8937744483004f328f60bb997d649c0c
Autor:
Nicholas Van Alfen, Duncan Campbell, Jonathan Blazek, C. Danielle Leonard, Francois Lanusse, Andrew Hearin, Rachel Mandelbaum, The LSST Dark Energy Science Collaboration
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
We extend current models of the halo occupation distribution (HOD) to include a flexible, empirical framework for the forward modeling of the intrinsic alignment (IA) of galaxies. A primary goal of this work is to produce mock galaxy catalogs for the
Externí odkaz:
https://doaj.org/article/ff9d692b358a4b08ac158a5d727c980a
Autor:
Claire-Alice Hébert, Joshua E. Meyers, My H. Do, Patricia R. Burchat, LSST Dark Energy Science Collaboration
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
High-fidelity simulated astronomical images are an important tool in developing and measuring the performance of image-processing algorithms, particularly for high precision measurements of cosmic shear -- correlated distortions of images of distant
Externí odkaz:
https://doaj.org/article/ecff2ac85c5b48309531a40dce16af28
Autor:
LSST Dark Energy Science Collaboration, Abolfathi, Bela, Armstrong, Robert, Awan, Humna, Babuji, Yadu N., Bauer, Franz Erik, Beckett, George, Biswas, Rahul, Bogart, Joanne R., Boutigny, Dominique, Chard, Kyle, Chiang, James, Cohen-Tanugi, Johann, Connolly, Andrew J., Daniel, Scott F., Digel, Seth W., Drlica-Wagner, Alex, Dubois, Richard, Gawiser, Eric, Glanzman, Thomas, Habib, Salman, Hearin, Andrew P., Heitmann, Katrin, Hernandez, Fabio, Hložek, Renée, Hollowed, Joseph, Jarvis, Mike, Jha, Saurabh W., Kalmbach, J. Bryce, Kelly, Heather M., Kovacs, Eve, Korytov, Danila, Krughoff, K. Simon, Lage, Craig S., Lanusse, François, Larsen, Patricia, Li, Nan, Longley, Emily Phillips, Lupton, Robert H., Mandelbaum, Rachel, Mao, Yao-Yuan, Marshall, Phil, Meyers, Joshua E., Park, Ji Won, Peloton, Julien, Perrefort, Daniel, Perry, James, Plaszczynski, Stéphane, Pope, Adrian, Rykoff, Eli S., Sánchez, F. Javier, Schmidt, Samuel J., Uram, Thomas D., Villarreal, Antonia, Walter, Christopher W., Wiesner, Matthew P., Wood-Vasey, W. Michael
In preparation for cosmological analyses of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the LSST Dark Energy Science Collaboration (LSST DESC) has created a 300 deg$^2$ simulated survey as part of an effort called Data Chall
Externí odkaz:
http://arxiv.org/abs/2101.04855
Autor:
LSST Dark Energy Science Collaboration, Abolfathi, Bela, Alonso, David, Armstrong, Robert, Aubourg, Éric, Awan, Humna, Babuji, Yadu N., Bauer, Franz Erik, Bean, Rachel, Beckett, George, Biswas, Rahul, Bogart, Joanne R., Boutigny, Dominique, Chard, Kyle, Chiang, James, Claver, Chuck F., Cohen-Tanugi, Johann, Combet, Céline, Connolly, Andrew J., Daniel, Scott F., Digel, Seth W., Drlica-Wagner, Alex, Dubois, Richard, Gangler, Emmanuel, Gawiser, Eric, Glanzman, Thomas, Gris, Phillipe, Habib, Salman, Hearin, Andrew P., Heitmann, Katrin, Hernandez, Fabio, Hložek, Renée, Hollowed, Joseph, Ishak, Mustapha, Ivezić, Željko, Jarvis, Mike, Jha, Saurabh W., Kahn, Steven M., Kalmbach, J. Bryce, Kelly, Heather M., Kovacs, Eve, Korytov, Danila, Krughoff, K. Simon, Lage, Craig S., Lanusse, François, Larsen, Patricia, Guillou, Laurent Le, Li, Nan, Longley, Emily Phillips, Lupton, Robert H., Mandelbaum, Rachel, Mao, Yao-Yuan, Marshall, Phil, Meyers, Joshua E., Moniez, Marc, Morrison, Christopher B., Nomerotski, Andrei, O'Connor, Paul, Park, HyeYun, Park, Ji Won, Peloton, Julien, Perrefort, Daniel, Perry, James, Plaszczynski, Stéphane, Pope, Adrian, Rasmussen, Andrew, Reil, Kevin, Roodman, Aaron J., Rykoff, Eli S., Sánchez, F. Javier, Schmidt, Samuel J., Scolnic, Daniel, Stubbs, Christopher W., Tyson, J. Anthony, Uram, Thomas D., Villarreal, Antonia, Walter, Christopher W., Wiesner, Matthew P., Wood-Vasey, W. Michael, Zuntz, Joe
We describe the simulated sky survey underlying the second data challenge (DC2) carried out in preparation for analysis of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) by the LSST Dark Energy Science Collaboration (LSST DESC).
Externí odkaz:
http://arxiv.org/abs/2010.05926
Akademický článek
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Autor:
Erin S. Sheldon, Matthew R. Becker, Michael Jarvis, Robert Armstrong, LSST Dark Energy Science Collaboration
Publikováno v:
The Open Journal of Astrophysics, Vol 6 (2023)
Forthcoming astronomical imaging surveys will use weak gravitational lensing shear as a primary probe to study dark energy, with accuracy requirements at the 0.1% level. We present an implementation of the Metadetection shear measurement algorithm fo
Externí odkaz:
https://doaj.org/article/ea99d5bb62f84b20aff969b63c2be10a
Autor:
J. Prat, J. Zuntz, Y. Omori, C. Chang, T. Tröster, E. Pedersen, C. García-García, E. Phillips-Longley, J. Sanchez, D. Alonso, X. Fang, E. Gawiser, K. Heitmann, M. Ishak, M. Jarvis, E. Kovacs, P. Larsen, Y. -Y. Mao, L. Medina Varela, M. Paterno, S. D. Vitenti, Z. Zhang, The LSST Dark Energy Science Collaboration
Publikováno v:
The Open Journal of Astrophysics, Vol 6 (2023)
We present TXPipe, a modular, automated and reproducible pipeline for ingesting catalog data and performing all the calculations required to obtain quality-assured two-point measurements of lensing and clustering, and their covariances, with the meta
Externí odkaz:
https://doaj.org/article/afa0cde7a18c4381beb9b79c9cc2fed0
Autor:
The LSST Dark Energy Science Collaboration, Mandelbaum, Rachel, Eifler, Tim, Hložek, Renée, Collett, Thomas, Gawiser, Eric, Scolnic, Daniel, Alonso, David, Awan, Humna, Biswas, Rahul, Blazek, Jonathan, Burchat, Patricia, Chisari, Nora Elisa, Dell'Antonio, Ian, Digel, Seth, Frieman, Josh, Goldstein, Daniel A., Hook, Isobel, Ivezić, Željko, Kahn, Steven M., Kamath, Sowmya, Kirkby, David, Kitching, Thomas, Krause, Elisabeth, Leget, Pierre-François, Marshall, Philip J., Meyers, Joshua, Miyatake, Hironao, Newman, Jeffrey A., Nichol, Robert, Rykoff, Eli, Sanchez, F. Javier, Slosar, Anže, Sullivan, Mark, Troxel, M. A.
The Large Synoptic Survey Telescope (LSST) Dark Energy Science Collaboration (DESC) will use five cosmological probes: galaxy clusters, large scale structure, supernovae, strong lensing, and weak lensing. This Science Requirements Document (SRD) quan
Externí odkaz:
http://arxiv.org/abs/1809.01669
Autor:
Rachel Mandelbaum, Mike Jarvis, Robert H. Lupton, James Bosch, Arun Kannawadi, Michael D. Murphy, Tianqing Zhang, the LSST Dark Energy Science Collaboration
Publikováno v:
The Open Journal of Astrophysics, Vol 6 (2023)
We provide a detailed exploration of the connection between choice of coaddition schemes and the point-spread function (PSF) of the resulting coadded images. In particular, we investigate what properties of the coaddition algorithm lead to the final
Externí odkaz:
https://doaj.org/article/7c949fb9fb274d959caecbe767fd03fc