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

Combet, Céline; Plazas Malagón, Andrés A.; Fu, Shenming; Adari, Prakruth; Dell'Antonio, Ian; Englert, Anthony; Gorsuch, Miranda R.; Laliotis, Katherine; Léget, Pierre-François; Lorenzo Martinez, Narei; Mandelbaum, Rachel; Pedersen, Eske M.; von der Linden, Anja; Zhang, Yuanyuan

doi:10.71929/rubin/2572986

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

Dataset
Other Related Research

Abstract

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.

Authors:

;

; Zhang, Yuanyuan

Université Grenoble Alpes, CNRS/IN2P3, LPSC
SLAC National Accelerator Laboratory; Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory
Department of Physics and Astronomy, Stony Brook University
Department of Physics, Brown University
Department of Physics, University of Wisconsin-Madison
Center for Cosmology and Astro-Particle Physics, The Ohio State University
Department of Astrophysical Sciences, Princeton University
Université Savoie Mont-Blanc, CNRS/IN2P3, LAPP
McWilliams Center for Cosmology & Astrophysics, Department of Physics, Carnegie Mellon University
Department of Physics, Harvard University
NSF NOIRLab

Publication Date:: Fri Jun 20 04:00:00 UTC 2025

Other Number(s):: Vera C. Rubin Observatory Commissioning Technical Note SITCOMTN-161

DOE Contract Number:: AC02-76SF00515

Research Org.:: NSF-DOE Vera C. Rubin Observatory

Sponsoring Org.:: U.S. National Science Foundation; U.S. Department of Energy Office of Science

Subject:: 79 ASTRONOMY AND ASTROPHYSICS

OSTI Identifier:: 2572986

DOI:: https://doi.org/10.71929/rubin/2572986

Citation Formats


                    Combet, Céline, Plazas Malagón, Andrés A., Fu, Shenming, Adari, Prakruth, Dell'Antonio, Ian, Englert, Anthony, Gorsuch, Miranda R., Laliotis, Katherine, Léget, Pierre-François, Lorenzo Martinez, Narei, Mandelbaum, Rachel, Pedersen, Eske M., von der Linden, Anja, and Zhang, Yuanyuan. SITCOMTN-161: PSF assessment in the field of Abell 360 and shapeHSM shear profile using LSSTComCam data.  United States: N. p., 2025. 
        Web.  doi:10.71929/rubin/2572986.

Copy to clipboard


                    Combet, Céline, Plazas Malagón, Andrés A., Fu, Shenming, Adari, Prakruth, Dell'Antonio, Ian, Englert, Anthony, Gorsuch, Miranda R., Laliotis, Katherine, Léget, Pierre-François, Lorenzo Martinez, Narei, Mandelbaum, Rachel, Pedersen, Eske M., von der Linden, Anja, & Zhang, Yuanyuan. SITCOMTN-161: PSF assessment in the field of Abell 360 and shapeHSM shear profile using LSSTComCam data.  United States.  doi:https://doi.org/10.71929/rubin/2572986

Copy to clipboard


                    Combet, Céline, Plazas Malagón, Andrés A., Fu, Shenming, Adari, Prakruth, Dell'Antonio, Ian, Englert, Anthony, Gorsuch, Miranda R., Laliotis, Katherine, Léget, Pierre-François, Lorenzo Martinez, Narei, Mandelbaum, Rachel, Pedersen, Eske M., von der Linden, Anja, and Zhang, Yuanyuan. 2025.  
"SITCOMTN-161: PSF assessment in the field of Abell 360 and shapeHSM shear profile using LSSTComCam data".  United States.  doi:https://doi.org/10.71929/rubin/2572986.  https://www.osti.gov/servlets/purl/2572986. Pub date:Fri Jun 20 04:00:00 UTC 2025

Copy to clipboard


                    
@article{osti_2572986,

  title        = {SITCOMTN-161: PSF assessment in the field of Abell 360 and shapeHSM shear profile using LSSTComCam data},

  author       = {Combet, Céline and Plazas Malagón, Andrés A. and Fu, Shenming and Adari, Prakruth and Dell'Antonio, Ian and Englert, Anthony and Gorsuch, Miranda R. and Laliotis, Katherine and Léget, Pierre-François and Lorenzo Martinez, Narei and Mandelbaum, Rachel and Pedersen, Eske M. and von der Linden, Anja and Zhang, Yuanyuan},

  abstractNote = {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.},

  doi          = {10.71929/rubin/2572986},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jun 20 04:00:00 UTC 2025},

  month        = {Fri Jun 20 04:00:00 UTC 2025}

}

Copy to clipboard

Dataset:

View Dataset

DOI: https://doi.org/10.71929/rubin/2572986

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Data Explorer and OSTI.GOV collections:

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

Dataset Li, Xiangchong ; Adari, Prakruth ; von der Linden, Anja ; ...

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.
SITCOMTN-163: Source Selection for Abell 360 in LSSTComCam Data Preview 1

Dataset Adari, Prakruth ; von der Linden, Anja ; Zhang, Tianqing ; ...

We cover the source selection done for the Abell 360 LSSTComCam cluster study focusing on color and photo-z cuts. Identification of cluster members via the red sequence and photo-z offers a science focused validation of photometry with LSSTComCam. We are able to cross-match with DESI spectroscopic redshifts to offer an independent validation suite on photo-z estimates. We make various color and photo-z cuts to generate N(z)s and shear profiles. We find that both cuts are quite robust to various choices made and can produce a shear profile for Abell 360. Both methods should be applicable to generating a consistent massmore » estimate for the cluster.« less
SITCOMTN-162: Testing the implementation of Metadetection and Cell-Based Coadds on Abell 360 LSSTComCam data

Dataset Gorsuch, Miranda R. ; Kannawadi, Arun ; Adari, Prakruth ; ...

The purpose of this technote is to test the technical quality of LSSTComCam commissioning data, specifically the Rubin_SV_38_7 field, by utilizing cell-based coadds and Metadetection by measuring the tangential and cross weak lensing shear profiles of the massive cluster Abell 360 (called A360 throughout the technote). The process entails generating the cell-based coadds for Metadetection to run on, identifying and removing cluster member galaxies, applying quality cuts, calibrating the shear measurements, and validation. Cell-based coadds and Metadetection are both currently in the process of being implemented within the LSST Science Pipelines at the time of this technote. There is substantialmore »« less
SITCOMTN-165: Surface brightness profiles around massive galaxies in LSSTComCam data

Dataset Zhou, Conghao ; Jeltema, Tesla ; von der Linden, Anja ; ...

Low surface brightness photometry of massive galaxies can probe the extended stellar halos and intracluster light but is often limited by background subtraction and masking systematics. Here we present radial surface brightness profiles for the brightest cluster galaxy of Abell 360 and 2dFGRS TGS323Z113 using Rubin Observatory Commissioning Camera (LSSTComCam) Data Preview 1 in the g, r, and z bands. Our results show that the LSSTComCam data can go down to ~28 mag arcsec^-2 in the r band. Comparison to DECaLS measurements processed with Legacyhalos shows good agreement of surface brightness profiles at small radii while the LSSTComCam data extendmore » deeper at larger radii.« less
SITCOMTN-149: An Interim Report on the LSSTComCam On-Sky Campaign

Dataset

From 24 October to 11 December 2024, the NSF-DOE Vera C. Rubin Observatory conducted an on-sky campaign using the engineering LSST Commissioning Camera (LSSTComCam) to test the end-to-end functionality of hardware and software, as well as operational procedures. This interim report provides a preliminary technical overview of our understanding of the integrated system performance based tests and analyses conducted during the LSSTComCam on-sky campaign. The objectives are to synthesize what we have learned about the system in a timely way to inform on-going commissioning efforts, and to inform the Rubin science community on the progress of the LSSTComCam on-sky campaign.more »« less

Similar Records