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A young star-forming galaxy at z = 3.5 with an extended Lyman α halo seen with MUSE

Published online by Cambridge University Press:  27 October 2016

Vera Patrício ,
Johan Richard ,
Anne Verhamme  and
the MUSE consortium
Vera Patrício
Affiliation:
CRAL, Observatoire de Lyon, Université Lyon 1, 9 Avenue Ch. André, 69561 Saint Genis Laval Cedex, France email: vera.patricio@univ-lyon1.fr
Johan Richard
Affiliation:
CRAL, Observatoire de Lyon, Université Lyon 1, 9 Avenue Ch. André, 69561 Saint Genis Laval Cedex, France email: vera.patricio@univ-lyon1.fr
Anne Verhamme
Affiliation:
CRAL, Observatoire de Lyon, Université Lyon 1, 9 Avenue Ch. André, 69561 Saint Genis Laval Cedex, France email: vera.patricio@univ-lyon1.fr Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290 Versoix, Switzerland
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Abstract

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We present MUSE observations of a typical (M⋆ = 6 × 109M⊙) young lensed galaxy at z=3.5, for which we obtain 2D resolved spatial information of Ly α and, for the first time, of C iii] emission. We also derive important physical properties from several UV emission and absorption lines, rarely seen at these redshifts. Stellar and gas-phase metallicities point towards a low metallicity object. We model the Ly α line and surface brightness profile using a radiative transfer code in an expanding gas shell, finding that this model provides a reasonable description of both observables.

Keywords

techniques: imaging spectroscopygravitational lensing: stronggalaxies: high-redshiftgalaxies: abundancesgalaxies: individual: SMACSJ2031.8-4036
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 820 - 821
Copyright
Copyright © International Astronomical Union 2016 

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