Status: Bibliographieeintrag
Standort: ---
Exemplare:
---
| Online-Ressource |
Verfasst von: | Huber, Korbinian [VerfasserIn]  |
| Tchernin, Céline [VerfasserIn]  |
| Merten, Julian [VerfasserIn]  |
| Hilbert, Stefan [VerfasserIn]  |
| Bartelmann, Matthias [VerfasserIn]  |
Titel: | Joint cluster reconstructions - combing free-form lensing and X-rays |
Verf.angabe: | Korbinian Huber, Céline Tchernin, Julian Merten, Stefan Hilbert, and Matthias Bartelmann |
E-Jahr: | 2019 |
Jahr: | 15 July 2019 |
Umfang: | 14 S. |
Fussnoten: | Gesehen am 28.04.2020 |
Titel Quelle: | Enthalten in: Astronomy and astrophysics |
Ort Quelle: | Les Ulis : EDP Sciences, 1969 |
Jahr Quelle: | 2019 |
Band/Heft Quelle: | 627(2019) Artikel-Nummer A143, 14 Seiten |
ISSN Quelle: | 1432-0746 |
Abstract: | Galaxy clusters provide a multitude of observational data across wavelengths, and their structure and morphology are of considerable interest in cosmology as well as astrophysics.<i>Aims<i/>. We develop a framework that allows the combination of lensing and non-lensing observations in a free-form and mesh-free approach to infer the projected mass distribution of individual galaxy clusters. This method can be used to test common assumptions on the morphology of clusters in parametric models.<i>Methods<i/>. We make use of the lensing reconstruction code SAWLENS2, and expand its capabilities by incorporating an estimate of the projected gravitational potential based on X-ray data that are deprojected using the local Richardson-Lucy method and used to infer the Newtonian potential of the cluster. We discuss how potentially arising numerical artefacts can be treated.<i>Results<i/>. We demonstrate the feasibility of our method on a simplified mock Navarro-Frenk-White (NFW) halo and on a cluster from a realistic hydrodynamical simulation. We show how the combination of X-ray and weak lensing data can affect a free-form reconstruction, improving the accuracy in the central region in some cases by a factor of two. |
DOI: | doi:10.1051/0004-6361/201834928 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1051/0004-6361/201834928 |
| Volltext: https://www.aanda.org/articles/aa/abs/2019/07/aa34928-18/aa34928-18.html |
| DOI: https://doi.org/10.1051/0004-6361/201834928 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1696304598 |
Verknüpfungen: | → Zeitschrift |
Joint cluster reconstructions - combing free-form lensing and X-rays / Huber, Korbinian [VerfasserIn]; 15 July 2019 (Online-Ressource)
68571213