cD; distance scale; galaxies: elliptical and lenticular; galaxies: individual: RXJ1131–1231; Galaxy: kinematics and dynamics; gravitational lensing: strong; Cd; Distance scale; Galaxies: elliptical and lenticular; Galaxies: individuals; Galaxies: Kinematics and dynamics; Galaxy: individual: rxj1131–1231; Gravitational lensing: strong; Near infrared spectrograph; Spatially resolved; Stellar kinematics; Astronomy and Astrophysics; Space and Planetary Science; astro-ph.GA; astro-ph.CO
Abstract :
[en] Spatially resolved stellar kinematics has become a key ingredient in time-delay cosmography to break the mass-sheet degeneracy in the mass profile and in turn provide a precise constraint on the Hubble constant and other cosmological parameters. In this paper, we present the first measurements of 2D resolved stellar kinematics for the lens galaxy in the quadruply lensed quasar system RXJ1131−1231 using integral field spectroscopy from JWST’s Near-Infrared Spectrograph (NIRSpec), marking the first such measurement conducted with JWST. In extracting robust kinematic measurements from this first-of-its-kind dataset, we have made methodological improvements both in the data reduction and kinematic extraction. In our kinematic extraction procedure, we performed joint modeling of the lens galaxy, the quasar, and its host galaxy’s contributions in the spectra to deblend the lens galaxy component and robustly constrain its stellar kinematics. Our improved methodological frameworks are released as software pipelines for future use: SQUIRREL, for extracting stellar kinematics, and REGALJUMPER, for JWST-NIRSpec data reduction. We incorporated additional artifact cleaning beyond the standard JWST pipeline. We compared our measured stellar kinematics from the JWST NIRSpec with previously obtained ground-based measurements from the Keck Cosmic Web Imager integral field unit and find that the two datasets are statistically consistent at a ∼1.1σ confidence level. Our measured kinematics will be used in a future study to improve the precision of the Hubble constant measurement.
Research Center/Unit :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Shajib, Anowar J. ; Department of Astronomy & Astrophysics, University of Chicago, Chicago, United States ; Kavli Institute for Cosmological Physics, University of Chicago, Chicago, United States ; Center for Astronomy, Space Science and Astrophysics, Independent University, Bangladesh, Dhaka, Bangladesh
Treu, Tommaso ; Department of Physics and Astronomy, University of California, Los Angeles, United States
Suyu, Sherry H. ; TUM School of Natural Sciences, Physics Department, Technical University of Munich, Garching, Germany ; Max Planck Institute for Astrophysics, Garching, Germany
Law, David ; Space Telescope Science Institute, Baltimore, United States
Yıldırım, Akın; Max Planck Institute for Astrophysics, Garching, Germany
Cappellari, Michele ; Sub-Department of Astrophysics, Department of Physics, University of Oxford, Oxford, United Kingdom
Galan, Aymeric ; TUM School of Natural Sciences, Physics Department, Technical University of Munich, Garching, Germany ; Max Planck Institute for Astrophysics, Garching, Germany
Knabel, Shawn ; Department of Physics and Astronomy, University of California, Los Angeles, United States
Wang, Han ; TUM School of Natural Sciences, Physics Department, Technical University of Munich, Garching, Germany ; Max Planck Institute for Astrophysics, Garching, Germany
Birrer, Simon ; Department of Physics and Astronomy, Stony Brook University, Stony Brook, United States
Courbin, Frédéric ; Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Barcelona, Spain ; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
Fassnacht, Christopher D. ; Department of Physics and Astronomy, UC Davis, Davis, United States
Frieman, Joshua A. ; Department of Astronomy & Astrophysics, University of Chicago, Chicago, United States ; Kavli Institute for Cosmological Physics, University of Chicago, Chicago, United States ; SLAC National Laboratory, Menlo Park, United States
Melo, Alejandra ; TUM School of Natural Sciences, Physics Department, Technical University of Munich, Garching, Germany ; Max Planck Institute for Astrophysics, Garching, Germany
Morishita, Takahiro ; California Institute of Technology, IPAC, Pasadena, United States
Mozumdar, Pritom ; Department of Physics and Astronomy, University of California, Los Angeles, United States
Sluse, Dominique ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO)
Stiavelli, Massimo ; Space Telescope Science Institute, Baltimore, United States
H2020 - 787886 - COSMICLENS - Cosmology with Strong Gravitational Lensing H2020 - 771776 - LENSNOVA - Cosmic Fireworks Première: Unravelling Enigmas of Type Ia Supernova Progenitor and Cosmology through Strong Lensing
Funders :
NASA - National Aeronautics and Space Administration STSCI - Space Telescope Science Institute NSF - National Science Foundation Gordon and Betty Moore Foundation MPG - Max Planck Society DFG - Deutsche Forschungsgemeinschaft SNSF - Swiss National Science Foundation ERC - European Research Council European Union
Funding text :
This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #1794. The specific observations analyzed can be accessed via https://dx.doi.org/10.17909/wjva-0750 . Code scripts and kinematic maps are available from the corresponding author on request. AJS received support from NASA through STScI grants JWST-GO-2974 and HST-GO-16773. Support for this work was also provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51492, awarded to AJS by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. TT acknowledges support by NSF through grants NSF-AST-1836016, NSF-AST-1906976, and NSF-AST-2407277, and from the Moore Foundation through grant 8548. SHS thanks the Max Planck Society for support through the Max Planck Fellowship. SHS and HW are supported in part by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany\u2019s Excellence Strategy \u2013 EXC-2094 \u2013 390783311. This project has received funding from SNSF and the European Research Council (ERC) under the European Union\u2019s Horizon 2020 research and innovation programme (COSMICLENS: grant agreement No. 787886; LENSNOVA: grant agreement No. 771776). CDF acknowledges support for this work from the National Science Foundation under Grant No. AST-2407278. This research made use of P PXF (, ), PAFIT (), VORBIN (), LENSTRONOMY (; ), STPSF (), NUMPY (), SCIPY (), ASTROPY (, ), JUPYTER (), MATPLOTLIB (), SEABORN (), EMCEE (), and GETDIST ( https://github.com/cmbant/getdist ).We thank Elizabeth Buckley-Geer and Cheryl Pavlovski for useful discussions that improved this work. This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #1794. The specific observations analyzed can be accessed via https://dx.doi.org/10.17909/wjva-0750. Code scripts and kinematic maps are available from the corresponding author on request. AJS received support from NASA through STScI grants JWST-GO-2974 and HST-GO-16773. Support for this work was also provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51492, awarded to AJS by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. TT acknowledges support by NSF through grants NSF-AST-1836016, NSF-AST-1906976, and NSF-AST-2407277, and from the Moore Foundation through grant 8548. SHS thanks the Max Planck Society for support through the Max Planck Fellowship. SHS and HW are supported in part by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany\u2019s Excellence Strategy \u2013 EXC-2094 \u2013 390783311. This project has received funding from SNSF and the European Research Council (ERC) under the European Union\u2019s Horizon 2020 research and innovation programme (COSMICLENS: grant agreement No. 787886; LENSNOVA: grant agreement No. 771776). CDF acknowledges support for this work from the National Science Foundation under Grant No. AST-2407278.
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