JWSTs PEARLS: NIRCam imaging and NIRISS spectroscopy of a $z=3.6$ star-forming galaxy lensed into a near-Einstein Ring by a $z=1.258$ massive elliptical galaxy

Abstract

We present the discovery, and initial lensing analysis, of a high-redshift galaxy-galaxy lensing system within the JWST-PEARLS/HST-TREASUREHUNT North Ecliptic Pole Time Domain Field (designated NEPJ172238.9+655143.1). The lensing geometry shears a $z=3.6\pm 0.1$ star-forming galaxy into a near-Einstein ring with a radius of 0\farcs92, consisting of 4 primary images, around a foreground massive elliptical galaxy at $z=1.258\pm 0.005$. The system is fortuitously located within the NIRISS F200W footprint of the PEARLS survey, enabling spectroscopic identification of the 8500A TiO band in the foreground galaxy and allowing tight constraints to be placed on the redshift of the background galaxy based on its continuum detection and lack of strong emission lines. We calculate magnification factors of $2.6<\mu <8.4$ for the four images and a total lensing mass of $(4.08\pm 0.07)\times 10^{11}{M}_{\odot }$. SED fitting of the foreground elliptical galaxy within the Einstein radius reveals a stellar mass of $\sim 1.26\times 10^{11}{M}_{\odot }$, providing a mass/light ratio of 3.24. Employing simple scaling relations and assumptions, an NFW dark matter halo is found to provide the correct remaining mass within $0.12_{-0.09}^{+0.21}$dex. However, if a bottom-heavy IMF for elliptical galaxies is employed, stellar mass estimations increase and can account for the majority of the lensing mass (up to $\sim$83\%), reducing the need for dark matter. This system further demonstrates the new discovery space that the combined wavelength coverage, sensitivity and resolution of JWST now enables.

10 pages, 3 Figures, 2 Tables, Submitted to MNRAS

References in corpus (52)

• Cosmic Star Formation History
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• EAZY: A Fast, Public Photometric Redshift Code
• 3D-HST WFC3-selected Photometric Catalogs in the Five CANDELS/3D-HST Fields: Photometry, Photometric Redshifts and Stellar Masses
• Detection of quiescent galaxies in a bicolor sequence from z=0-2
• Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results
• Stellar Population Inference with Prospector
• New Determinations of the UV Luminosity Functions from z~9 to z~2 show a remarkable consistency with halo growth and a constant star formation efficiency
• The Structure & Dynamics of Massive Early-type Galaxies: On Homology, Isothermality and Isotropy inside one Effective Radius
• On the Stellar Populations of Galaxies at z=9-11: The Growth of Metals and Stellar Mass at Early Times
• lenstronomy II: A gravitational lensing software ecosystem
• The stellar-to-halo mass relation over the past 12 Gyr
• The CFHTLS Strong Lensing Legacy Survey: I. Survey overview and T0002 release sample
• Geometry of Star-Forming Galaxies from SDSS, 3D-HST and CANDELS
• JWST's PEARLS: Prime Extragalactic Areas for Reionization and Lensing Science: Project Overview and First Results
• Binospec: A Wide-field Imaging Spectrograph for the MMT
• The Complete Redshift Distribution of Dusty Star-forming Galaxies from the SPT-SZ Survey
• Correcting the z~8 Galaxy Luminosity Function for Gravitational Lensing Magnification Bias
• COSMOS2020: The cosmic evolution of the stellar-to-halo mass relation for central and satellite galaxies up to z~5
• Convolution kernels for multi-wavelength imaging
• Spectral Templates Optimal for Selecting Galaxies at z > 8 with JWST
• JWST UNCOVER: Discovery of $z>9$ Galaxy Candidates Behind the Lensing Cluster Abell 2744
• The Dependence of Theoretical Synthetic Spectra on $\alpha$-enhancement in Young, Binary Stellar Populations
• Survey of Gravitationally-lensed Objects in HSC Imaging (SuGOHI). VI. Crowdsourced lens finding with Space Warps
• EPOCHS IV: SED Modelling Assumptions and their impact on the Stellar Mass Function at 6.5 < z < 13.5 using PEARLS and public JWST observations
• A direct constraint on the gas content of a massive, passively evolving elliptical galaxy at z = 1.43
• HOLISMOKES. VI. New galaxy-scale strong lens candidates from the HSC-SSP imaging survey
• Lensed Type Ia Supernova "Encore" at z=2: The First Instance of Two Multiply-Imaged Supernovae in the Same Host Galaxy
• The Interstellar Medium of Quiescent Galaxies and its Evolution With Time
• Extremely Low Molecular Gas Content in a Compact, Quiescent Galaxy at z=1.522
• The first large catalogue of spectroscopic redshifts in Webb's First Deep Field, SMACS J0723.3$-$7327
• The kinematics of massive quiescent galaxies at $1.4<z<2.1$: dark matter fractions, IMF variation, and the relation to local early-type galaxies
• Discovery of a high-redshift Einstein ring
• A Triple Rollover: A third multiply-imaged source at z~6 behind the Jackpot gravitational lens
• The velocity dispersion function of early-type galaxies and its redshift evolution: the newest results from lens redshift test
• The Bright Extragalactic ALMA Redshift Survey (BEARS) I: redshifts of bright gravitationally-lensed galaxies from the Herschel ATLAS
• Hubble Asteroid Hunter: II. Identifying strong gravitational lenses in HST images with crowdsourcing
• The JCMT SCUBA-2 Survey of the James Webb Space Telescope North Ecliptic Pole Time-Domain Field
• The NuSTAR Extragalactic Survey of the James Webb Space Telescope North Ecliptic Pole Time-Domain Field
• The COSMOS-Web ring: in-depth characterization of an Einstein ring lensing system at z~2
• JWST's PEARLS: dust attenuation and gravitational lensing in the backlit-galaxy system VV 191
• On the detectability of strong lensing in near-infrared surveys
• Euclid: A complete Einstein ring in NGC 6505
• PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time-Domain Field II
• The COSMOS-Web Lens Survey (COWLS) I: Discovery of >100 high redshift strong lenses in contiguous JWST imaging
• A model for galaxy-galaxy strong lensing statistics in surveys
• Euclid Quick Data Release (Q1): The Strong Lensing Discovery Engine A -- System overview and lens catalogue
• Gravitational lensing modification of the high redshift galaxy luminosity function
• Velocity dispersion function evolution from strong lensing statistics
• EPOCHS I. The Discovery and Star Forming Properties of Galaxies in the Epoch of Reionization at $6.5<z<18$ with PEARLS and Public JWST data
• The COSMOS-Web Lens Survey (COWLS) II: depth, resolution, and NIR coverage from JWST reveal 17 spectacular lenses
• EPOCHS XI: The Structure and Morphology of Galaxies in the Epoch of Reionization to z ~ 12.5

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