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

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dc.contributor.authorFoëx, Gael
dc.contributor.authorMotta, Verónica
dc.date.accessioned2021-11-22T14:48:29Z
dc.date.available2021-11-22T14:48:29Z
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 ≈0farcs5. 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 rs = ${132}_{-32}^{+30}$ kpc, ${\sigma }_{s}={1203}_{-47}^{+46}$ km s−1, M200 = ${3.1}_{-0.6}^{+0.6}$ ×1014 ${M}_{\odot }$, and a high concentration c200 = ${9.9}_{-1.4}^{+2.2}$. 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.en_ES
dc.facultadFacultad de Cienciasen_ES
dc.identifier.doihttps://doi.org/10.3847/1538-4357/ab9635
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/2703
dc.language.isoenen_ES
dc.publisherThe American Astronomical Societyen_ES
dc.sourceThe Astrophysical Journalen_ES
dc.subjectGRAVITATIONAL LENSINGen_ES
dc.subjectGALAXY CLUSTERSen_ES
dc.subjectDARK MATTERen_ES
dc.titleDissecting the Strong-lensing Galaxy Cluster MS 0440.5+0204. I. The Mass Density Profileen_ES
dc.typeArticuloen_ES
uv.catalogadorRCR DIBRAen_ES
uv.departamentoInstituto de Fisica y Astronomiaen_ES
uv.notageneralVarios autoresen_ES

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