J0454-0309: evidence of a strong lensing fossil group falling into a poor galaxy cluster

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Volume 514 (May 2010)

A&A, 514 (2010) A60

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Table 4:

Summary of the main results.
Method	$\sigma_v$ [ $\rm km~s^{-1}$ ]	r₂₀₀ [kpc]	M₂₀₀ [ $10^{14}~M_\odot$ ]
Galaxy counts	-	$811\pm46$	$0.74\pm0.15$
Spectr. (early type)	$480\pm20$	$1054\pm44$	$1.69\pm0.14$
Spectr. (late type)	$590\pm20$	$1295\pm44$	$3.14\pm0.21$
X-ray ( $\beta$ -model)	$316\pm26$	$617\pm28$	$0.34\pm0.10$
Weak lens. (SIS)	$476\pm46$	$853\pm82$	$0.90\pm0.26$
Weak lens. (NFW)	-	$834\pm219$	$0.84\pm0.66$
Weak lens. (MR)	-	$650\pm50$ ^*	$0.38\pm0.09$ ^*
Strong lensing	$319\pm4$	$700\pm9$	$0.50\pm0.01$

Notes. Values in bold face are the primary measurements, the others were derived from these.
^(*) The mass estimate from the weak lensing mass reconstruction is obtained within a radius of 182 kpc, significantly smaller than r₂₀₀. The given values are therefore lower limits.

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