Weak lensing analysis of the galaxy cluster RX J1117.4+0743 ([VMF 98] 097)

GONZALEZ, ELIZABETH JOHANA; DOMINGUEZ, MARIANO ; GARCÍA LAMBAS, DIEGO; MORESCHI, OSVALDO; FOËX, GAEL; NILO CASTELLÓN, JOSÉ LUIS; ALONSO, MARÍA VICTORIA

Tandil, Buenos Aires

Congreso; Reunión Anual de la Asociación Argentina de Astronomía; 2013

(enviado) We present a weak lensing analysis of the galaxy cluster RX J1117.4+0743 ([VMF 98] 097) at z=0.485, based on data collected with Gemini South Telescope. The cluster was formerly analyzed by Carrasco et al. (2007, ApJ, 664, 777), and they found a large discrep- ancy between the mass estimated from Xray observations and lensing estimates, exceeding the X-ray mass by more than a factor three. Our result for the mass from the weak lensing analysis is lower than the mass obtained by Carrasco et al. and closer to the X-ray mass.