| Issue |
A&A
Volume 698, May 2025
|
|
|---|---|---|
| Article Number | A161 | |
| Number of page(s) | 7 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361/202450857 | |
| Published online | 11 June 2025 | |
The strong lensing model of MACS J0035.4−2015
1
Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany
2
Technical University of Munich, TUM School of Natural Sciences, Physics Department, James-Franck Str. 1, 85748 Garching, Germany
3
Institute of Astronomy and Astrophysics, Academia Sinica, 11F of ASMAB, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
⋆ Corresponding author: chitsanupongsomma@googlemail.com
Received:
24
May
2024
Accepted:
18
February
2025
We used strong gravitational lensing to study the mass distribution of the galaxy cluster MACS J0035.4−2015, by modeling its total mass distribution. The combination of high-resolution imaging from the Hubble Space Telescope with ground-based spectroscopy from the Multi Unit Spectroscopic Explorer mounted at the Very Large Telescope allowed us to model the observed multiple image positions with ≈0.″3 precision. We find that MACS J0035.4−2015 can be best described by a combination of an elliptical dark matter halo modeled as an isothermal mass profile, with the brightest cluster galaxy and cluster members each modeled with a spherical truncated isothermal parameterization. With these assumptions, the total mass is estimated to be ≈ 6 × 1013 M⊙ within 100 kpc. The data and mass model presented here form the basis for future cosmological and astrophysical studies of this cluster.
Key words: gravitational lensing: strong / galaxies: clusters: individual: MACS J0035.4−2015 / cosmological parameters / cosmology: observations / dark matter / dark energy
© The Authors 2025
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Open Access funding provided by Max Planck Society.
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