English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  VLT/MUSE observations of SDSS J1029+2623: Toward a high-precision strong lensing model

Acebron, A., Grillo, C., Bergamini, P., Mercurio, A., Rosati, P., Caminha, G. B., et al. (2022). VLT/MUSE observations of SDSS J1029+2623: Toward a high-precision strong lensing model. The Astrophysical Journal, 926(1): 86. doi:10.3847/1538-4357/ac3d35.

Item is

Files

show Files
hide Files
:
VLT MUSE observations of SDSS J1029+2623 Toward a high-precision strong lensing model.pdf (Any fulltext), 2MB
 
File Permalink:
-
Name:
VLT MUSE observations of SDSS J1029+2623 Toward a high-precision strong lensing model.pdf
Description:
-
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Acebron, Ana, Author
Grillo, Claudio, Author
Bergamini, Pietro, Author
Mercurio, Amata, Author
Rosati, Piero, Author
Caminha, Gabriel Bartosch1, Author           
Tozzi, Paolo, Author
Brammer, Gabriel B., Author
Meneghetti, Massimo, Author
Morelli, Andrea, Author
Nonino, Mario, Author
Vanzella, Eros, Author
Affiliations:
1Physical Cosmology, MPI for Astrophysics, Max Planck Society, ou_2205644              

Content

show
hide
Free keywords: -
 Abstract: We present a strong lensing analysis of the galaxy cluster SDSS J1029+2623 at z = 0.588, one of the few currently known lens clusters with multiple images of a background (z = 2.1992) quasar with a measured time delay. We use archival Hubble Space Telescope multiband imaging and new Multi Unit Spectroscopic Explorer follow-up spectroscopy to build an accurate lens mass model, a crucial step toward future cosmological applications. The spectroscopic data enable the secure identification of 57 cluster members and of two nearby perturbers along the line of sight. We estimate the inner kinematics of a subset of 20 cluster galaxies to calibrate the scaling relations parameterizing the sub-halo mass component. We also reliably determine the redshift of four multiply imaged sources, provide a tentative measurement for one system, and report the discovery of a new four-image system. The final catalog comprises 26 multiple images from seven background sources, spanning a wide redshift range, from 1.02 to 5.06. We present two parametric lens models, with slightly different cluster mass parameterizations. The observed positions of the multiple images are accurately reproduced within approximately 0.〞2, the three image positions of the quasar within only ∼0.〞1. We estimate a cluster projected total mass of M(<300 kpc) ∼ 2.1 × 1014 M, with a statistical uncertainty of a few percent. Both models, which include a small galaxy close to one of the quasar images, predict magnitude differences and time delays between the quasar images that are consistent with the observations.

Details

show
hide
Language(s):
 Dates: 2022-02-15
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3847/1538-4357/ac3d35
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Astrophysical Journal
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 926 (1) Sequence Number: 86 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3