S17
Gravitational Lensing in the JWST era: Galaxies and Galaxy Clusters
Communauté
Contact : marceau.limousin@lam.fr
JWST observations of Abell 2744, credit UNCOVER
Half day workshop on June 6th, 14h – 18h30
FINAL SCHEDULE (indicative times)
14h-14h20 : Céline Gouin (invited): Weak Lensing predictions in simulations : From galaxy clusters to cosmic web
14h20 – 14h40 : Anna Niemiec (invited): Non-spherical BUFFALOs: a weak-lensing view of the Frontier Field clusters
14h40 – 15h : Benjamin Beauchesnes : Multiwavelength views on the mass distribution of galaxy clusters: The case of Abell S1063
15h-15h20 : Joseph Allingham : What can we learn from the joint study of the Intra-Cluster Medium and Strong Lensing effect in Galaxy Clusters?
15h20-15h40 : Quentin Basto : Probing the Universe with galaxy clusters: the special case of exotic strong lensing
15h40-16h : Marceau Limousin : Can Abell 370 be described parametrically?
16h-16h20 : PAUSE
16h20-16h40: Adélaïde Claeyssens : Detecting and characterising high-redshift low-luminosity Lyman-alpha emitters with MUSE, HST and JWST
16h40-17h : Iryna Chemerynska : Probing the Early Universe with JWST
17h-17h20 : Xie Yushan : ClUsteR strong Lens modelIng for the Next-Generation observations (CURLING): The Bias from Point-like Multiple Image Approximation
17h20-17h40 : Eric Jullo : Cluster Lens database INSU/SNO
17h40-18h : Raquel Galazo-García : Constraining Scalar Field Dark Matter scenarios with Gravitational Lensing
18h-18h20 : Raphael Gavazzi : The COSMOS-Web Einstein Ring
18h20-18h40 : Amaël Ellien : A multiscale view of the Intracluster light in the JWST/Euclid era
Posters (electronically; flash presentation, schedule to be define) :
Nie Lin : Hybrid PSF reconstruction for the observed JWST NIRCam image
Mamta Pommier: Radio mode feedback and mass distribution in clusters in the SKA era
Deep space based data obtained in recent years by ambitious programs like RELICS and the Hubble Frontier Fields, and more recently with the James
Webb Space Telescope, have revolutionized the field of gravitational lensing by galaxy clusters. These data, associated with additional observations (notably spectroscopy of cluster members and multiple images and Xray) offer several opportunities:
(i) Establish mass maps of increasing precision, separating the different components intervening in the mass budget and allowing progress in the characterization of the elusive underlying dark matter that dominates the mass budget.
(ii) Detect galaxies at very high redshift by benefiting from the gravitational amplification provided by galaxy clusters. These « natural telescopes » gives us access to populations of galaxies of much lower luminosities and allow us to zoom into the internal structure of galaxies, revealing very compact regions (below the kpc) which tell us about the stellar formation mechanisms.
On the other hand, the increasing quantity and quality of these new data require an evolution of modeling and analysis codes, and also of the way we aim to share the lens models to benefit the entire extragalactic community, whether for applications in cosmology and dark matter or in the evolution of galaxies.
We propose a half-day workshop focused on the use of deep space data in order to study the evolution of galaxies and the physics of galaxy clusters. The technical aspect (modeling codes) and simulations (to support observations) will also be discussed.
More precisely, this workshop will be divided as follows:
* Galaxy Clusters Mass Modeling:
– What did we learn about the distribution of dark matter? What are the current limitations of the cold dark matter model ?
– What are the degeneracies in the models? How can we limit them and what are their consequences on our ability to study dark matter on the one hand, and to access the Universe at high redshift on the other?
– Links with simulations (cold dark matter, alternative dark matter, impact of baryons…)
– Make mass models easily accessible to the community.
* Cluster galaxies:
– The arrival of very large space imaging data sets, either very deep with JWST, or covering a very large number of clusters with Euclid, will make it possible to characterize the evolution and transformation of galaxies at the heart of clusters, in connection with other observables (X-rays, intra-cluster light).
* Background galaxies, gravitational telescope:
The unique magnification effect provided by gravitational lenses makes it possible to characterize very distinct spatial scales in distant galaxies, ranging from extended regions of star formation (a few hundred parsecs) to compact structures very similar to star clusters of the Local universe (below 10 pc). The comparison of these observations with numerical simulations is essential to constrain the mechanisms at play in the evolution of galaxies, in particular the feedback recipes of star formation.
* Analysis codes, reconstruction algorithms:
– How to meet the challenges raised by the quantity of data?
– Continue to set up “challenges” (a la Meneghetti et al. 2017) to test the different codes existing.
SOC: Adélaïde Claeyssens (Stockholm University), Eric Jullo (LAM), Marceau Limousin (LAM) & Johan Richard (CRAL)
Présentations
| Authors | Title | Type | File |
|---|---|---|---|
| Benjamin Beauchesne | Multiwavelength views on the mass distribution of galaxy clusters: The case of Abell S1063 | orale | abstract_SF2A_BBeauchesne.pdf |
| Raquel Galazo-García Eric Jullo Marceau Limousin Emmanuel Nezri | Constraining Scalar Field Dark Matter scenarios with Gravitational Lensing. | orale | abstract_sf2a_5.pdf |
| Amaël Ellien | A multiscale view of the Intracluster light in the JWST/Euclid era | orale | SF2A_2024.pdf |
| Anna Niemiec and the BUFFALO collaboration | Non-spherical BUFFALOs: a weak-lensing view of the Frontier Field clusters | invite | sf2a2023_niemiec.pdf |
| Iryna Chemerynska, Hakim Atek and the UNCOVER team | Probing the Early Universe: Mass-Metallicity Insights from Extreme Low-Mass Galaxies | orale | SF2A_Chemerrynska_MZR.pdf |
| Iryna Chemerynska, Hakim Atek, Lukas Furtak and the UNCOVER team | JWST insights into the galaxy candidates at z > 9 | orale | SF2A_Chemerrynska_UVLF.pdf |
| C. Gouin, R. Gavazzi, C. Pichon, Y. Dubois, C. Laigle, N. E. Chisari, S. Codis, J. Devriendt and S. Peirani | Weak Lensing predictions in simulations : From galaxy clusters to cosmic web | invite | Gouin2019WeaklensingHorizonAGN.pdf |
| Adélaïde Claeyssens | Detecting and characterising high-redshift low-luminosity Lyman-alpha emitters with MUSE, HST and JWST. | orale | SF2A_S17.pdf |
| Quentin Basto | Probing the Universe with galaxy clusters: the special case of exotic strong lensing | orale | abstract_exotic_lenses_sf2a.pdf |
| Yushan Xie, Huanyuan Shan, Nan Li, Ran Li, Eric Jullo, Ana Acebron, Chen Su, Xiaoyue Cao, Jean-Paul Kneib, Mengfan He, Ji Yao, Chunxiang Wang, Jiadong Li, Yin Li | ClUsteR strong Lens modelIng for the Next-Generation observations (CURLING): The Bias from Point-like Multiple Image Approximation | orale | pixmodeling_yushan_xie.pdf |
| Nie Lin, Shan Huanyuan, Li Guoliang, Wang Lei, Cheng Cheng, Tao Charling, Cui Qifan, Xie Yushan, Liu Dezi, Zekang Zhang | HybPSF: Hybrid PSF reconstruction for the observed JWST NIRCam image | poster | HybPSF.pdf |
| Wilfried Mercier, Marko Shuntov, Raphael Gavazzi, James Nightingale, et al | The COSMOS-Web Einstein Ring | orale | proposal.pdf |