RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster

Rachel Paterno-Mahler; Keren Sharon; Dan Coe; Guillaume Mahler; Catherine Cerny; Traci L. Johnson; Tim Schrabback; Felipe Andrade-Santos; Roberto J. Avila; Maruša Bradač; Larry D. Bradley; Daniela Carrasco; Nicole G. Czakon; William A. Dawson; Brenda L. Frye; Austin T. Hoag; Kuang Han Huang; Christine Jones; Daniel Lam; Rachael Livermore; Lorenzo Lovisari; Ramesh Mainali; Pascal A. Oesch; Sara Ogaz; Matthew Past; Avery Peterson; Russell E. Ryan; Brett Salmon; Irene Sendra-Server; Daniel P. Stark; Keiichi Umetsu; Benedetta Vulcani; Adi Zitrin

doi:10.3847/1538-4357/aad239

RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster

Rachel Paterno-Mahler, Keren Sharon, Dan Coe, Guillaume Mahler, Catherine Cerny, Traci L. Johnson, Tim Schrabback, Felipe Andrade-Santos, Roberto J. Avila, Maruša Bradač, Larry D. Bradley, Daniela Carrasco, Nicole G. Czakon, William A. Dawson, Brenda L. Frye, Austin T. Hoag, Kuang Han Huang, Christine Jones, Daniel Lam, Rachael LivermoreLorenzo Lovisari, Ramesh Mainali, Pascal A. Oesch, Sara Ogaz, Matthew Past, Avery Peterson, Russell E. Ryan, Brett Salmon, Irene Sendra-Server, Daniel P. Stark, Keiichi Umetsu, Benedetta Vulcani, Adi Zitrin

Department of Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We present a lens model for the cluster SPT-CLJ0615-5746, which is the highest-redshift (z = 0.972) system in the Reionization of Lensing Clusters Survey, making it the highest-redshift cluster for which a full, strong lens model is published. We identify three systems of multiply imaged lensed galaxies, two of which we spectroscopically confirm at z = 1.358 and z = 4.013, which we use as constraints for the model. We find a foreground structure at z ∼ 0.4, which we include as a second cluster-sized halo in one of our models; however, two different statistical tests find the best-fit model consists of one cluster-sized halo combined with three individually optimized galaxy-sized halos, as well as contributions from the cluster galaxies themselves. We find the total projected mass density within r = 26.″7 (the region where the strong lensing constraints exist) to be M _⊙. If we extrapolate out to r ₅₀₀, our projected mass density is consistent with the mass inferred from weak lensing and from the Sunyaev-Zel'dovich effect (M ∼ 10¹⁵ M _⊙). This cluster is lensing a previously reported z ∼ 10 galaxy, which, if spectroscopically confirmed, will be the highest-redshift strongly lensed galaxy known.

Original language	English
Article number	154
Journal	Astrophysical Journal
Volume	863
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aad239
State	Published - 20 Aug 2018

Keywords

clusters: individual (SPT-CLJ0615-5746)
gravitational lensing: strong

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/aad239

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Paterno-Mahler, R., Sharon, K., Coe, D., Mahler, G., Cerny, C., Johnson, T. L., Schrabback, T., Andrade-Santos, F., Avila, R. J., Bradač, M., Bradley, L. D., Carrasco, D., Czakon, N. G., Dawson, W. A., Frye, B. L., Hoag, A. T., Huang, K. H., Jones, C., Lam, D., ... Zitrin, A. (2018). RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster. Astrophysical Journal, 863(2), Article 154. https://doi.org/10.3847/1538-4357/aad239

@article{8046b5a182884b6392b662e52a89cf82,

title = "RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster",

abstract = "We present a lens model for the cluster SPT-CLJ0615-5746, which is the highest-redshift (z = 0.972) system in the Reionization of Lensing Clusters Survey, making it the highest-redshift cluster for which a full, strong lens model is published. We identify three systems of multiply imaged lensed galaxies, two of which we spectroscopically confirm at z = 1.358 and z = 4.013, which we use as constraints for the model. We find a foreground structure at z ∼ 0.4, which we include as a second cluster-sized halo in one of our models; however, two different statistical tests find the best-fit model consists of one cluster-sized halo combined with three individually optimized galaxy-sized halos, as well as contributions from the cluster galaxies themselves. We find the total projected mass density within r = 26.″7 (the region where the strong lensing constraints exist) to be M ⊙. If we extrapolate out to r 500, our projected mass density is consistent with the mass inferred from weak lensing and from the Sunyaev-Zel'dovich effect (M ∼ 1015 M ⊙). This cluster is lensing a previously reported z ∼ 10 galaxy, which, if spectroscopically confirmed, will be the highest-redshift strongly lensed galaxy known.",

keywords = "clusters: individual (SPT-CLJ0615-5746), gravitational lensing: strong",

author = "Rachel Paterno-Mahler and Keren Sharon and Dan Coe and Guillaume Mahler and Catherine Cerny and Johnson, {Traci L.} and Tim Schrabback and Felipe Andrade-Santos and Avila, {Roberto J.} and Maru{\v s}a Brada{\v c} and Bradley, {Larry D.} and Daniela Carrasco and Czakon, {Nicole G.} and Dawson, {William A.} and Frye, {Brenda L.} and Hoag, {Austin T.} and Huang, {Kuang Han} and Christine Jones and Daniel Lam and Rachael Livermore and Lorenzo Lovisari and Ramesh Mainali and Oesch, {Pascal A.} and Sara Ogaz and Matthew Past and Avery Peterson and Ryan, {Russell E.} and Brett Salmon and Irene Sendra-Server and Stark, {Daniel P.} and Keiichi Umetsu and Benedetta Vulcani and Adi Zitrin",

year = "2018",

month = aug,

day = "20",

doi = "10.3847/1538-4357/aad239",

language = "English",

volume = "863",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2",

}

Paterno-Mahler, R, Sharon, K, Coe, D, Mahler, G, Cerny, C, Johnson, TL, Schrabback, T, Andrade-Santos, F, Avila, RJ, Bradač, M, Bradley, LD, Carrasco, D, Czakon, NG, Dawson, WA, Frye, BL, Hoag, AT, Huang, KH, Jones, C, Lam, D, Livermore, R, Lovisari, L, Mainali, R, Oesch, PA, Ogaz, S, Past, M, Peterson, A, Ryan, RE, Salmon, B, Sendra-Server, I, Stark, DP, Umetsu, K, Vulcani, B & Zitrin, A 2018, 'RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster', Astrophysical Journal, vol. 863, no. 2, 154. https://doi.org/10.3847/1538-4357/aad239

TY - JOUR

T1 - RELICS

T2 - A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster

AU - Paterno-Mahler, Rachel

AU - Sharon, Keren

AU - Coe, Dan

AU - Mahler, Guillaume

AU - Cerny, Catherine

AU - Johnson, Traci L.

AU - Schrabback, Tim

AU - Andrade-Santos, Felipe

AU - Avila, Roberto J.

AU - Bradač, Maruša

AU - Bradley, Larry D.

AU - Carrasco, Daniela

AU - Czakon, Nicole G.

AU - Dawson, William A.

AU - Frye, Brenda L.

AU - Hoag, Austin T.

AU - Huang, Kuang Han

AU - Jones, Christine

AU - Lam, Daniel

AU - Livermore, Rachael

AU - Lovisari, Lorenzo

AU - Mainali, Ramesh

AU - Oesch, Pascal A.

AU - Ogaz, Sara

AU - Past, Matthew

AU - Peterson, Avery

AU - Ryan, Russell E.

AU - Salmon, Brett

AU - Sendra-Server, Irene

AU - Stark, Daniel P.

AU - Umetsu, Keiichi

AU - Vulcani, Benedetta

AU - Zitrin, Adi

PY - 2018/8/20

Y1 - 2018/8/20

N2 - We present a lens model for the cluster SPT-CLJ0615-5746, which is the highest-redshift (z = 0.972) system in the Reionization of Lensing Clusters Survey, making it the highest-redshift cluster for which a full, strong lens model is published. We identify three systems of multiply imaged lensed galaxies, two of which we spectroscopically confirm at z = 1.358 and z = 4.013, which we use as constraints for the model. We find a foreground structure at z ∼ 0.4, which we include as a second cluster-sized halo in one of our models; however, two different statistical tests find the best-fit model consists of one cluster-sized halo combined with three individually optimized galaxy-sized halos, as well as contributions from the cluster galaxies themselves. We find the total projected mass density within r = 26.″7 (the region where the strong lensing constraints exist) to be M ⊙. If we extrapolate out to r 500, our projected mass density is consistent with the mass inferred from weak lensing and from the Sunyaev-Zel'dovich effect (M ∼ 1015 M ⊙). This cluster is lensing a previously reported z ∼ 10 galaxy, which, if spectroscopically confirmed, will be the highest-redshift strongly lensed galaxy known.

AB - We present a lens model for the cluster SPT-CLJ0615-5746, which is the highest-redshift (z = 0.972) system in the Reionization of Lensing Clusters Survey, making it the highest-redshift cluster for which a full, strong lens model is published. We identify three systems of multiply imaged lensed galaxies, two of which we spectroscopically confirm at z = 1.358 and z = 4.013, which we use as constraints for the model. We find a foreground structure at z ∼ 0.4, which we include as a second cluster-sized halo in one of our models; however, two different statistical tests find the best-fit model consists of one cluster-sized halo combined with three individually optimized galaxy-sized halos, as well as contributions from the cluster galaxies themselves. We find the total projected mass density within r = 26.″7 (the region where the strong lensing constraints exist) to be M ⊙. If we extrapolate out to r 500, our projected mass density is consistent with the mass inferred from weak lensing and from the Sunyaev-Zel'dovich effect (M ∼ 1015 M ⊙). This cluster is lensing a previously reported z ∼ 10 galaxy, which, if spectroscopically confirmed, will be the highest-redshift strongly lensed galaxy known.

KW - clusters: individual (SPT-CLJ0615-5746)

KW - gravitational lensing: strong

UR - http://www.scopus.com/inward/record.url?scp=85052375673&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/aad239

DO - 10.3847/1538-4357/aad239

M3 - Article

AN - SCOPUS:85052375673

SN - 0004-637X

VL - 863

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 154

ER -

RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z = 0.972 Cluster

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