Strong-lensing and kinematic analysis of CASSOWARY 31: can strong lensing constrain the masses of multi-plane lenses?

Abstract

We present a mass measurement for the secondary lens along the line of sight (LoS) in the multi-plane strong lens modeling of the group-scale lens CASSOWARY 31 (CSWA 31). The secondary lens at redshift $z=1.49$ is a spiral galaxy well aligned along the LoS with the main lens at $z=0.683$. Using the MUSE integral-field spectroscopy of this spiral galaxy, we measure its rotation velocities and determine the mass from the gas kinematics. We compare the mass estimation of the secondary lens from the lensing models to the mass measurement from kinematics, finding that the predictions from strong lensing tend to be higher. By introducing an additional lens plane at $z=1.36$ for an overdensity known to be present, we find a mass of $\simeq 10^{10}$ M${}_{\odot }$ enclosed within 3.3 kpc from the centroid of the spiral galaxy, approaching the estimate from kinematics. This shows that secondary-lens mass measurements from multiple-plane modeling are affected by systematic uncertainties from the degeneracies between lens planes and the complex LoS structure. Conducting a detailed analysis of the LoS structures is therefore essential to improve the mass measurement of the secondary lens.

arXiv comment8 pages, 9 figures, 1 table, accepted for publication in Astronomy & Astrophysics. We welcome the comments from readers

References in corpus (38)

• Star Formation in Galaxies Along the Hubble Sequence
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• CIGALE: a python Code Investigating GALaxy Emission
• The KMOS^3D Survey: design, first results, and the evolution of galaxy kinematics from 0.7<z<2.7
• The Sloan Lens ACS Survey. X. Stellar, Dynamical, and Total Mass Correlations of Massive Early-type Galaxies
• The Sloan Lens ACS Survey. III - The Structure and Formation of Early-type Galaxies and their Evolution since z~1
• Strong Lensing by Galaxies
• The thick disks of spiral galaxies as relics from gas-rich, turbulent, clumpy disks at high redshift
• H0LiCOW - IX. Cosmographic analysis of the doubly imaged quasar SDSS 1206+4332 and a new measurement of the Hubble constant
• The population of galaxy-galaxy strong lenses in forthcoming optical imaging surveys
• The Main Sequence of star-forming galaxies across cosmic times
• Strongly baryon-dominated disk galaxies at the peak of galaxy formation ten billion years ago
• The ISM in distant star-forming galaxies: Turbulent pressure, fragmentation and cloud scaling relations in a dense gas disk at z=2.3
• A Bayesian analysis of regularised source inversions in gravitational lensing
• The SINS/zC-SINF survey of z~2 galaxy kinematics: Outflow properties
• The Frontier Fields Lens Modeling Comparison Project
• The MUSE 3D view of the Hubble Deep Field South
• H0LiCOW IV. Lens mass model of HE 0435-1223 and blind measurement of its time-delay distance for cosmology
• The Sloan Lens ACS Survey. VI: Discovery and analysis of a double Einstein ring
• The Halos of Satellite Galaxies: the Companion of the Massive Elliptical Lens SL2S J08544-0121
• CLASH-VLT: Insights on the mass substructures in the Frontier Fields Cluster MACS J0416.1-2403 through accurate strong lens modeling
• The Evolution and Origin of Ionized Gas Velocity Dispersion from $z\sim 2.6$ to $z\sim 0.6$ with KMOS${}^{3D}$
• Disentangling Baryons and Dark Matter in the Spiral Gravitational Lens B1933+503
• High velocity outflows from young star-forming galaxies in the UKIDSS Ultra-Deep Survey
• Fast calculation of a family of elliptical mass gravitational lens models
• Weighing Galaxy Disks with the Baryonic Tully-Fisher Relation
• Rotation Curves in z~1-2 Star-Forming Disks: Evidence for Cored Dark Matter Distributions
• The CASSOWARY spectroscopy survey: A new sample of gravitationally lensed galaxies in SDSS
• Two New Large Separation Gravitational Lenses from SDSS
• The Emission-Line Spectra of Major Mergers: Evidence for Shocked Outflows
• MACS J0416.1-2403: Impact of line-of-sight structures on strong gravitational lensing modelling of galaxy clusters
• Line-of-Sight Structure Toward Strong Lensing Galaxy Clusters
• RC100: Rotation Curves of 100 Massive Star-Forming Galaxies at z=0.6-2.5 Reveal Little Dark Matter on Galactic Scales
• Kinematics of the SN Refsdal host revealed by MUSE: a regularly rotating spiral galaxy at z~1.5
• Strong spiral arms drive secular growth of pseudo bulges in disk galaxies
• KURVS: The outer rotation curve shapes and dark matter fractions of $z\sim 1.5$ star-forming galaxies
• Generalized multi-plane gravitational lensing: time delays, recursive lens equation, and the mass-sheet transformation
• Constraining the multi-scale dark-matter distribution in CASSOWARY 31 with strong gravitational lensing and stellar dynamics

Cited by in corpus (2)

• Pixel-level modelling of group-scale strong lens CASSOWARY 19
• The ALPINE-CRISTAL-JWST Survey: Gas-phase abundance gradients of main sequence star-forming galaxies and their kinematics at $4<z<6$