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SITCOMTN-161: PSF assessment in the field of Abell 360 and shapeHSM shear profile using LSSTComCam data

Dataset ·
 [1];  [2];  [3];  [4];  [5];  [5];  [6];  [7];  [8];  [9];  [10];  [11];  [4];  [12]
  1. Université Grenoble Alpes, CNRS/IN2P3, LPSC
  2. SLAC National Accelerator Laboratory; Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory
  3. Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory
  4. Department of Physics and Astronomy, Stony Brook University
  5. Department of Physics, Brown University
  6. Department of Physics, University of Wisconsin-Madison
  7. Center for Cosmology and Astro-Particle Physics, The Ohio State University
  8. Department of Astrophysical Sciences, Princeton University
  9. Université Savoie Mont-Blanc, CNRS/IN2P3, LAPP
  10. McWilliams Center for Cosmology & Astrophysics, Department of Physics, Carnegie Mellon University
  11. Department of Physics, Harvard University
  12. NSF NOIRLab
+ Show Author Affiliations
The Rubin LSSTComCam on-sky campaign performed at the end of 2024 provided observations of the Abell 360 galaxy cluster; these data allow a preliminary study of cluster weak lensing analysis using Rubin Data Preview 1 (DP1) data. Among all the steps required for such analyses, accurate modeling of the PSF is essential. This work uses several diagnostics, mostly based on the residuals between the second moments of stars and the PSF model, to characterize the accuracy of the PSF modeling in the A360 field. We find the level of the residuals to be sufficiently low not to hinder the measurement of the tangential shear profile around A360. With a simple source selection process, we demonstrate that outputs of the LSST Science Pipelines can be used to detect the tangential shear profile in Abell 360 at the 3.6σ level, and our analysis indicates that contamination from PSF modeling systematics is negligible.
Research Organization:
NSF-DOE Vera C. Rubin Observatory
Sponsoring Organization:
U.S. National Science Foundation; U.S. Department of Energy Office of Science
DOE Contract Number:
AC02-76SF00515
OSTI ID:
2572986
Report Number(s):
Vera C. Rubin Observatory Commissioning Technical Note SITCOMTN-161
Country of Publication:
United States
Language:
English

References (23)

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Dark Energy Survey year 3 results: point spread function modelling journal November 2020
CLMM: a LSST-DESC cluster weak lensing mass modeling library for cosmology journal October 2021
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The DES Science Verification weak lensing shear catalogues journal May 2016
Dark Energy Survey Year 1 results: weak lensing shape catalogues journal August 2018
Weak lensing shear calibration with simulations of the HSC survey journal September 2018
The three-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey journal March 2022
The first-year shear catalog of the Subaru Hyper Suprime-Cam Subaru Strategic Program Survey journal December 2017
Galaxy-galaxy weak lensing in the Sloan Digital Sky Survey: intrinsic alignments and shear calibration errors journal September 2004
Systematic errors in weak lensing: application to SDSS galaxy-galaxy weak lensing journal August 2005
Improving PSF modelling for weak gravitational lensing using new methods in model selection journal February 2010
Dark Energy Survey Year 6 Results: Point-Spread Function Modeling journal March 2025
The Atacama Cosmology Telescope: A Catalog of >4000 Sunyaev–Zel’dovich Galaxy Clusters journal February 2021
The LSST Dark Energy Science Collaboration (DESC) Science Requirements Document preprint January 2018
LSST Commissioning Camera dataset January 2024
Legacy Survey of Space and Time Data Preview 1 dataset January 2025
RTN-095: The Vera C. Rubin Observatory Data Preview 1 dataset July 2025
PSTN-019: The LSST Science Pipelines Software: Optical Survey Pipeline Reduction and Analysis Environment dataset January 2025
SITCOMTN-163: Source Selection for Abell 360 in LSSTComCam Data Preview 1 dataset January 2025
SITCOMTN-154: Initial studies of photometric redshifts with LSSTComCam from DP1 dataset January 2025

Cited By (3)

SITCOMTN-163: Source Selection for Abell 360 in LSSTComCam Data Preview 1 dataset January 2025
SITCOMTN-164: AnaCal Shear Profile of Abell 360 in LSSTComCam Data Preview 1 dataset January 2025
SITCOMTN-162: Testing the implementation of Metadetection and Cell-Based Coadds on Abell 360 LSSTComCam data dataset January 2025

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SITCOMTN-162: Testing the implementation of Metadetection and Cell-Based Coadds on Abell 360 LSSTComCam data
Dataset · Fri Oct 24 00:00:00 EDT 2025 · OSTI ID:3000578
SITCOMTN-164: AnaCal Shear Profile of Abell 360 in LSSTComCam Data Preview 1
Dataset · Sun Aug 24 00:00:00 EDT 2025 · OSTI ID:3000577
SITCOMTN-163: Source Selection for Abell 360 in LSSTComCam Data Preview 1
Dataset · Wed Jun 25 00:00:00 EDT 2025 · OSTI ID:2571157

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS