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SITCOMTN-164: AnaCal Shear Profile of Abell 360 in LSSTComCam Data Preview 1

Dataset ·
 [1];  [2];  [2];  [3]
  1. Brookhaven National Laboratory
  2. Department of Physics and Astronomy, Stony Brook University
  3. McWilliams Center for Cosmology & Astrophysics, Department of Physics, Carnegie Mellon University
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This technote presents the measurement of the weak-lensing shear profile for the Abell 360 galaxy cluster using LSSTComCam data processed with the AnaCal pipeline. We detail the procedures involved in bright-star masking, source selection, and the estimation of tangential and cross shear around the cluster center. The resulting shear profiles provide key insights into the mass distribution of Abell 360 and demonstrate the capabilities of AnaCal in processing early LSST data, with the tangential shear profile detected at 5σ significance.
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:
3000577
Report Number(s):
Vera C. Rubin Observatory Commissioning Technical Note SITCOMTN-164
Country of Publication:
United States
Language:
English

References (13)

CLMM: a LSST-DESC cluster weak lensing mass modeling library for cosmology journal October 2021
Weak gravitational lensing shear measurement with FPFS: analytical mitigation of noise bias and selection bias journal February 2022
Analytical weak-lensing shear responses of galaxy properties and galaxy detection journal March 2023
Analytical noise bias correction for precise weak lensing shear inference journal December 2024
Accurate shear estimation with fourth-order moments journal January 2025
Fourier Power Function Shapelets (FPFS) shear estimator: performance on image simulations journal October 2018
Metadetection Weak Lensing for the Vera C. Rubin Observatory journal May 2023
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
Analytical weak-lensing shear response of galaxy model fitting preprint January 2025
SITCOMTN-163: Source Selection for Abell 360 in LSSTComCam Data Preview 1 dataset January 2025
SITCOMTN-161: PSF assessment in the field of Abell 360 and shapeHSM shear profile using LSSTComCam data dataset January 2025
SITCOMTN-162: Testing the implementation of Metadetection and Cell-Based Coadds on Abell 360 LSSTComCam data dataset January 2025

Cited By (1)

SITCOMTN-162: Testing the implementation of Metadetection and Cell-Based Coadds on Abell 360 LSSTComCam data dataset January 2025

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79 ASTRONOMY AND ASTROPHYSICS