NOAO >   Observing Info >   Approved Programs >   2019B-0494

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Program Information for 2019B-0494


PI: John R Peterson, Purdue U., peters11@purdue.edu
Address: Physics Department, 525 Northwestern Ave, West Lafayette, IN 47906 United States

CoI: Glenn Sembroski, Purdue U.
CoI: Anirban Dutta, IPFW
CoI: Caleb Remocaldo, IPFW

Title: Weak Lensing in Clusters of Galaxies with PhoSim

Abstract: Measurements of masses of clusters of galaxies via weak gravitational lensing is important for observational cosmology. We have developed a novel set of codes, the Photon Simulator (PhoSim) to simulate astronomical observations photon-by-photon to assist in weak lensing measurements. We propose a two-night period where we will calibrate PhoSim using bright star fields centered on globular clusters and observe three clusters of galaxies to make dark matter maps in conjunction with PhoSim. In addition, the proposed observations will be useful for validating PhoSim itself. We have already implemented the WIYN ODI optical design in PhoSim, and plan to use the proposed observations to validate and calibrate PhoSim with an existing observatory, and to study weak lensing in conjunction with PhoSim simulations.

Program Type: Purdue

Scheduled Nights:
Run 1 (2019B):  WIYN/ODI -- 1.5n on Aug 23 - Aug 24 2019
Run 2 (2019B):  WIYN/ODI -- 2n on Oct 05 - Oct 06 2019


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2019B-0494

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