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Tightening the constraints on the mass distribution of the Frontier Fields MACSJ0416.1-2403 with VLT/MUSE spectroscopy

Published online by Cambridge University Press:  27 October 2016

Benjamin Clément ,
Johan Richard ,
Guillaume Mahler ,
Vera Patrício ,
David Lagattuta  and
the MUSE Consortium
Benjamin Clément
Affiliation:
Centre de Recherche Astrophysique de Lyon (CRAL), Observatoire de Lyon Université Lyon 1, 9 Avenue Charles André, 69561 Saint Genis Laval email: [email protected]
Johan Richard
Affiliation:
Centre de Recherche Astrophysique de Lyon (CRAL), Observatoire de Lyon Université Lyon 1, 9 Avenue Charles André, 69561 Saint Genis Laval email: [email protected]
Guillaume Mahler
Affiliation:
Centre de Recherche Astrophysique de Lyon (CRAL), Observatoire de Lyon Université Lyon 1, 9 Avenue Charles André, 69561 Saint Genis Laval email: [email protected]
Vera Patrício
Affiliation:
Centre de Recherche Astrophysique de Lyon (CRAL), Observatoire de Lyon Université Lyon 1, 9 Avenue Charles André, 69561 Saint Genis Laval email: [email protected]
David Lagattuta
Affiliation:
Centre de Recherche Astrophysique de Lyon (CRAL), Observatoire de Lyon Université Lyon 1, 9 Avenue Charles André, 69561 Saint Genis Laval email: [email protected]
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Abstract

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We have combined the performances of the VLT/MUSE spectrograph together with the power of gravitational lensing by Frontier Fields galaxy clusters to offer a unique magnified view of the distant universe. The large field of view over a wide optical wavelength domain enables redshift measurements of numerous lensed galaxies in the cluster core. Spectroscopically-confirmed multiple-imaged systems are further used as strong constraints to improve the cluster mass model. Here, we focus on the galaxy cluster MACSJ0416.1-2403 and compare the revised magnification map with results from previous analysis.

Keywords

gravitational lensinggalaxies: clusters: individual (MACSJ0416.1-2403)techniques: spectroscopic(cosmology:) dark matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 781 - 782
Copyright
Copyright © International Astronomical Union 2016 

References

Bacon, R., Brinchmann, J., Richard, J., Contini, T., Drake, A., et al. 2015, A&A, 575A, 75B Google Scholar
Jauzac, M., Clément, B., Limousin, M., Richard, J., et al. 2014, MNRAS, 443, 1549J Google Scholar
Richard, J., Patrício, V., Martinez, J., Bacon, R., Clément, B., et al. 2015, MNRAS, 446L, 16R Google Scholar