CLASH-VLT

• Verfasst von: Pizzuti, Lorenzo [VerfasserIn]
• Verfasst von: Amendola, Luca [VerfasserIn]
• Titel: CLASH-VLT
• Titelzusatz: constraints on f (R) gravity models with galaxy clusters using lensing and kinematic analyses
• Verf.angabe: L. Pizzuti, B. Sartoris, L. Amendola, S. Borgani, A. Biviano, K. Umetsu, A. Mercurio, P. Rosati, I. Balestra, G. B. Caminha, M. Girardi, C. Grillo, M. Nonino
• Fussnoten: Gesehen am 09.11.2017
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2017
• Band/Heft Quelle: (2017) Artikel-Nummer 1705.05179, 33 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565187482

Abstract

We perform a maximum likelihood kinematic analysis of the two dynamically relaxed galaxy clusters MACS J1206.2-0847 at $z=0.44$ and RXC J2248.7-4431 at $z=0.35$ to determine the total mass profile in modified gravity models, using a modified version of the MAMPOSSt code of Mamon, Biviano and Bou\'e. Our work is based on the kinematic and lensing mass profiles derived using the data from the Cluster Lensing And Supernova survey with Hubble (hereafter CLASH) and the spectroscopic follow-up with the Very Large Telescope (hereafter CLASH-VLT). We assume a spherical Navarro-Frenk-White (NFW hereafter) profile in order to obtain a constraint on the fifth force interaction range $\lambda$ for models in which the dependence of this parameter on the enviroment is negligible at the scale considered (i.e. $\lambda=const$) and fixing the fifth force strength to the value predicted in