학술논문
COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Gravitational Lenses in DECaLS
Document Type
Working Paper
Author
Mork, Simon D.; Gladders, Michael D.; Khullar, Gourav; Sharon, Keren; Chicoine, Nathalie; Cloonan, Aidan P.; Dahle, Håkon; Garza, Diego; Glusman, Rowen; Gozman, Katya; Horwath, Gabriela; Levine, Benjamin C.; Liang, Olina; Mahronic, Daniel; Manwadkar, Viraj; Martinez, Michael N.; Masegian, Alexandra; Acuña, Owen S. Matthews; Merz, Kaiya; Pan, Yue; Sanchez, Jorge A.; Sierra, Isaac; Stein, Daniel J. Kavin; Sukay, Ezra; Tamargo-Arizmendi, Marcos; Tavangar, Kiyan; Tu, Ruoyang; Wagner, Grace; Zaborowski, Erik A.; Zhang, Yunchong
Source
Subject
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Abstract
We compute parametric measurements of the Einstein-radius-enclosed total mass for 177 cluster-scale strong gravitational lenses identified by the ChicagO Optically-selected Lenses Located At the Margins of Public Surveys (COOL-LAMPS) collaboration with lens redshifts ranging from $0.2 \lessapprox z \lessapprox 1.0$ using only two measured parameters in each lensing system: the Einstein radius, and the brightest-cluster-galaxy (BCG) redshift. We then constrain the Einstein-radius-enclosed luminosity and stellar mass by fitting parametric spectral energy distributions (SEDs) with aperture photometry from the Dark Energy Camera Legacy Survey (DECaLS) in the $g$, $r$, and $z$-band Dark Energy Camera (DECam) filters. We find that the BCG redshift, enclosed total mass, and enclosed luminosity are strongly correlated and well described by a planar relationship in 3D space. We also find that the enclosed total mass and stellar mass are correlated with a logarithmic slope of $0.443\pm0.035$, and the enclosed total mass and stellar-to-total mass fraction are correlated with a logarithmic slope of $-0.563\pm0.035$. The correlations described here can be used to validate strong lensing candidates in upcoming imaging surveys -- such as Rubin/Legacy Survey of Space and Time (LSST) -- in which an algorithmic treatment of lensing systems will be needed due to the sheer volume of data these surveys will produce.
Comment: 17 pages, 5 figures, 2 tables. Submitted to The Astrophysical Journal. v3: updated authors, formatting, grammar, and references
Comment: 17 pages, 5 figures, 2 tables. Submitted to The Astrophysical Journal. v3: updated authors, formatting, grammar, and references