LoVoCCS. III. Third Generation Pipeline & The Hercules Supercluster

Anthony M. Englert; Shenming Fu; Ian Dell'Antonio; Mohamed H. Abdullah; Shrouk Abdulshafy; Eddie Aljamal; William K. Black; Nicole Chidester; Doug Clowe; M. C. Cooper; Megan Donahue; Zacharias Escalante; August Evrard; Eric Habjan; Soren Helhoski; Binyang Liu; Jacqueline McCleary; Hironao Miyatake; Mireia Montes; Priyamvada Natarajan; Jessica Nelson; Michelle Ntampaka; Elena Pierpaoli; Marc Postman; Rahul Shinde; Jubee Sohn; Fuyuko Tanaka; David Turner; Keiichi Umetsu; Yousuke Utsumi; Ray Wang; Gillian Wilson

LoVoCCS. III. Third Generation Pipeline & The Hercules Supercluster

Astrophysics of Galaxies 2026-07-17 v1 Cosmology and Nongalactic Astrophysics

Authors: Anthony M. Englert , Shenming Fu , Ian Dell'Antonio , Mohamed H. Abdullah , Shrouk Abdulshafy , Eddie Aljamal , William K. Black , Nicole Chidester , Doug Clowe , M. C. Cooper , Megan Donahue , Zacharias Escalante , August Evrard , Eric Habjan , Soren Helhoski , Binyang Liu , Jacqueline McCleary , Hironao Miyatake , Mireia Montes , Priyamvada Natarajan , Jessica Nelson , Michelle Ntampaka , Elena Pierpaoli , Marc Postman , Rahul Shinde , Jubee Sohn , Fuyuko Tanaka , David Turner , Keiichi Umetsu , Yousuke Utsumi , Ray Wang , Gillian Wilson

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Abstract

The Local Volume Complete Cluster Survey (LoVoCCS) is a volume-complete survey of over one-hundred nearby ( $0.03 < z < 0.12$ ), X-ray luminous ( $L_{500} > 10^{44} \text{ erg s}^{-1}$ ) galaxy clusters in the southern sky. Observations for the survey concluded in December 2025, reaching Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) Year 1-2 depth in each field and providing observations with $\lesssim 1"$ seeing for weak lensing science. In this paper, we present the latest pipeline for reducing observations using the third-generation of the LSST Science Pipelines. We use recent observations of the Hercules Supercluster to validate the pipeline's data-products and conduct an extensive multi-plane weak-lensing analysis of a $\sim 16 \text{ deg}^2$ complex covering Abell 2147, 2151, 2152, and several additional structures. We confirm that the dynamical mass of the complex is biased due to the dynamical state of Abell 2147, which is consistent with being $\sim 0.2-0.4 \text{ Gyr}$ out-of periapsis, and estimate that the total mass of the supercluster is $8.9^{+1.7}_{-1.4} \times 10^{14}~M_{\odot}$ .

Cite

@article{arxiv.2607.16417,
  title  = {LoVoCCS. III. Third Generation Pipeline & The Hercules Supercluster},
  author = {Anthony M. Englert and Shenming Fu and Ian Dell'Antonio and Mohamed H. Abdullah and Shrouk Abdulshafy and Eddie Aljamal and William K. Black and Nicole Chidester and Doug Clowe and M. C. Cooper and Megan Donahue and Zacharias Escalante and August Evrard and Eric Habjan and Soren Helhoski and Binyang Liu and Jacqueline McCleary and Hironao Miyatake and Mireia Montes and Priyamvada Natarajan and Jessica Nelson and Michelle Ntampaka and Elena Pierpaoli and Marc Postman and Rahul Shinde and Jubee Sohn and Fuyuko Tanaka and David Turner and Keiichi Umetsu and Yousuke Utsumi and Ray Wang and Gillian Wilson},
  journal= {arXiv preprint arXiv:2607.16417},
  year   = {2026}
}

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