Dissecting the Strong-lensing Galaxy Cluster MS 0440.5+0204. I. The Mass Density Profile

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dc.contributor.authorVerdugo, Tomas
dc.contributor.authorCarrasco, Eleazar R.
dc.contributor.authorFoex, Gael
dc.contributor.authorMotta, Veronica
dc.contributor.authorGomez, Percy L.
dc.contributor.authorLimousin, Marceau
dc.contributor.authorMagana, Juan
dc.contributor.authorde Diego, Jose A.
dc.date.accessioned2025-01-23T19:50:36Z
dc.date.available2025-01-23T19:50:36Z
dc.date.issued2020
dc.description.abstractWe present a parametric strong-lensing modeling of the galaxy cluster MS 0440.5+0204 (located at z = 0.19). We have performed a strong-lensing mass reconstruction of the cluster using three different models. The first model uses the image positions of four multiply imaged systems (providing 26 constraints). The second one combines strong-lensing constraints with dynamical information (velocity dispersion) of the cluster. The third one uses the mass calculated from weak lensing as an additional constraint. Our three models reproduce equally well the image positions of the arcs, with an rms image equal to approximate to 0.'' 5 However, in the third model, the inclusion of the velocity dispersion and the weak-lensing mass allows us to obtain better constraints in the scale radius and the line-of-sight velocity dispersion of the mass profile. For this model, we obtain r(s), = 132(-32)(+30) kpc, sigma(s) = 1203(-47)(+46) km s(-1), M-200 = 3.1(-0.6)(+0.6) x10(14) M-circle dot, and a high concentration c(200) = 9.9(-1.4)(+2.2). Finally, we used our derived mass profile to calculate the mass up to 1.5 Mpc. We compare it with X-ray estimates previously reported, finding a good agreement.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/ab9635
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ab9635
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100553
dc.identifier.wosidWOS:000545653200001
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.titleDissecting the Strong-lensing Galaxy Cluster MS 0440.5+0204. I. The Mass Density Profile
dc.typeartículo
dc.volumen897
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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