TY - JOUR
T1 - GalSim
T2 - The modular galaxy image simulation toolkit
AU - Rowe, B. T.P.
AU - Jarvis, M.
AU - Mandelbaum, R.
AU - Bernstein, G. M.
AU - Bosch, J.
AU - Simet, M.
AU - Meyers, J. E.
AU - Kacprzak, T.
AU - Nakajima, R.
AU - Zuntz, J.
AU - Miyatake, H.
AU - Dietrich, J. P.
AU - Armstrong, R.
AU - Melchior, P.
AU - Gill, M. S.S.
N1 - Funding Information:
We wish to thank the two anonymous referees whose insightful comments significantly improved the paper. This project was supported in part by NASA via the Strategic University Research Partnership (SURP) Program of the Jet Propulsion Laboratory, California Institute of Technology. Part of BR’s work was done at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. BR, JZ and TK acknowledge support from a European Research Council Starting Grant with number 240672 . MJ acknowledges support from NSF award AST-1138729 . RM was supported in part by program HST-AR-12857.01-A, provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555; and in part by a Sloan Fellowship . HM acknowledges support from Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowships for Research Abroad and JSPS Research Fellowships for Young Scientists . PM is supported by the U.S. Department of Energy under Contract No. DE- FG02-91ER40690 . The authors acknowledge the use of the UCL Legion High Performance Computing Facility (Legion@UCL), and associated support services, in the completion of this work. This work was supported in part by the National Science Foundation under Grant No. PHYS-1066293 and the hospitality of the Aspen Center for Physics.
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - GalSim is a collaborative, open-source project aimed at providing an image simulation tool of enduring benefit to the astronomical community. It provides a software library for generating images of astronomical objects such as stars and galaxies in a variety of ways, efficiently handling image transformations and operations such as convolution and rendering at high precision. We describe the GalSim software and its capabilities, including necessary theoretical background. We demonstrate that the performance of GalSim meets the stringent requirements of high precision image analysis applications such as weak gravitational lensing, for current datasets and for the Stage IV dark energy surveys of the Large Synoptic Survey Telescope, ESA's Euclid mission, and NASA's WFIRST-AFTA mission. The GalSim project repository is public and includes the full code history, all open and closed issues, installation instructions, documentation, and wiki pages (including a Frequently Asked Questions section). The GalSim repository can be found at https://github.com/GalSim-developers/GalSim.
AB - GalSim is a collaborative, open-source project aimed at providing an image simulation tool of enduring benefit to the astronomical community. It provides a software library for generating images of astronomical objects such as stars and galaxies in a variety of ways, efficiently handling image transformations and operations such as convolution and rendering at high precision. We describe the GalSim software and its capabilities, including necessary theoretical background. We demonstrate that the performance of GalSim meets the stringent requirements of high precision image analysis applications such as weak gravitational lensing, for current datasets and for the Stage IV dark energy surveys of the Large Synoptic Survey Telescope, ESA's Euclid mission, and NASA's WFIRST-AFTA mission. The GalSim project repository is public and includes the full code history, all open and closed issues, installation instructions, documentation, and wiki pages (including a Frequently Asked Questions section). The GalSim repository can be found at https://github.com/GalSim-developers/GalSim.
KW - Cosmology: observations
KW - Gravitational lensing
KW - Methods: data analysis
KW - Techniques: image processing
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U2 - 10.1016/j.ascom.2015.02.002
DO - 10.1016/j.ascom.2015.02.002
M3 - Article
AN - SCOPUS:84924738441
SN - 2213-1337
VL - 10
SP - 121
EP - 150
JO - Astronomy and Computing
JF - Astronomy and Computing
ER -