Data di Pubblicazione:
2016
Citazione:
Dark matter fraction of low-mass cluster members probed by galaxy-scale strong lensing / W.G. Parry, C. Grillo, A. Mercurio, I. Balestra, P. Rosati, L. Christensen, M. Lombardi, G.B. Caminha, M. Nonino, A.M. Koekemoer, K. Umetsu. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - ISSN 0035-8711. - 458:2(2016 May 11), pp. 1493-1503.
Abstract:
We present a strong lensing system, composed of four multiple images of a source at z = 2.387, created by two lens galaxies, G1 and G2, belonging to the galaxy cluster MACS J1115.9+0129 at z = 0.353. We use observations taken as part of the Cluster Lensing and Supernova survey with Hubble, and its spectroscopic follow-up programme at the Very Large Telescope, to estimate the total mass distributions of the two galaxies and the cluster through strong gravitational lensing models. We find that the total projected mass values within the half-light radii, Re, of the two lens galaxies are MT,G1(
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
dark matter; galaxies: clusters: individual: MACS J1115.9+0129; galaxies: structure; gravitational lensing: strong; space and planetary science; astronomy and astrophysics
Elenco autori:
W.G. Parry, C. Grillo, A. Mercurio, I. Balestra, P. Rosati, L. Christensen, M. Lombardi, G.B. Caminha, M. Nonino, A.M. Koekemoer, K. Umetsu
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