M
Matthias Bartelmann
Researcher at Heidelberg University
Publications - 469
Citations - 31330
Matthias Bartelmann is an academic researcher from Heidelberg University. The author has contributed to research in topics: Galaxy cluster & Weak gravitational lensing. The author has an hindex of 77, co-authored 463 publications receiving 29828 citations. Previous affiliations of Matthias Bartelmann include ITA Software & University of Bonn.
Papers
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Journal ArticleDOI
Biases in, and corrections to, KSB shear measurements
TL;DR: In this paper, the Kaiser-Squires-Broadhurst (KSB) method is used to estimate the shear from surface-brightness moments of small and noisy galaxy images.
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MOKA: a new tool for Strong Lensing Studies
TL;DR: Moka, a new algorithm for simulating the gravitational lensing signal from cluster-sized haloes is presented, which implements the most recent results from numerical simulations to create realistic cluster-scale lenses with properties independent of numerical resolution.
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Clash-vlt: constraints on the dark matter equation of state from accurate measurements of galaxy cluster mass profiles
Barbara Sartoris,Barbara Sartoris,Andrea Biviano,Piero Rosati,Stefano Borgani,Stefano Borgani,Keiichi Umetsu,Matthias Bartelmann,Marisa Girardi,Marisa Girardi,Claudio Grillo,D. Lemze,Adi Zitrin,Italo Balestra,Amata Mercurio,Mario Nonino,Marc Postman,N. Czakon,Larry Bradley,Tom Broadhurst,Dan Coe,Elinor Medezinski,Peter Melchior,Massimo Meneghetti,Julian Merten,M. Annunziatella,M. Annunziatella,Narciso Benítez,O. Czoske,Megan Donahue,Stefano Ettori,Holland C. Ford,Alexander Fritz,D. D. Kelson,Anton M. Koekemoer,U. Kuchner,Marco Lombardi,Christian Maier,Leonidas A. Moustakas,E. Munari,E. Munari,V. Presotto,V. Presotto,Marco Scodeggio,Stella Seitz,Paolo Tozzi,Wei Zheng,Bodo L. Ziegler +47 more
TL;DR: In this paper, the authors used complementary information provided by the kinematic and lensing mass profiles of the galaxy cluster MACS 1206 to constrain the equation of state (EoS) parameter of the fluid, primarily dark matter (DM) contained in galaxy clusters.
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Testing the reliability of weak lensing cluster detections
Francesco Pace,Matteo Maturi,Massimo Meneghetti,Matthias Bartelmann,Lauro Moscardini,Klaus Dolag +5 more
TL;DR: In this paper, the reliability of dark-matter halo detections with three different linear filters applied to weak-lensing data was investigated using a large cosmological simulation to construct realizations of cosmic lensing by large-scale structures between redshift zero and two.
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Weak gravitational lensing
TL;DR: This brief review of the advances made in weak gravitational lensing over the last 8 years, concentrating on the large scales cosmic shear, considers the prospects for probing Dark Energy and extra-dimensional gravity theories with future experiments.