Johan Richard

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Publications associées (46)

Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies

Johan Richard, Jean-Paul Richard Kneib, Hakim Atek, Mathilde Jauzac, Benjamin Yvan Alexandre Clement

Extending over three Hubble Space Telescope (HST) cycles, the Hubble Frontier Fields (HFF) initiative constitutes the largest commitment ever of HST time to the exploration of the distant Universe via gravitational lensing by massive galaxy clusters. Here, ...

Wiley-Blackwell2014

Molecular gas content in typical L* galaxies at z ∼ 1.5 − 3

Johan Richard, Jean-Paul Richard Kneib

Cambridge, Cambridge University Press2014

Herschel-ATLAS: a binary HyLIRG pinpointing a cluster of starbursting protoellipticals

Johan Richard, Jean-Paul Richard Kneib, Hui Fu

Panchromatic observations of the best candidate hyperluminous infrared galaxies from the widest Herschel extragalactic imaging survey have led to the discovery of at least four intrinsically luminous z = 2.41 galaxies across an approximate to 100 kpc regio ...

Iop Publishing Ltd2013

An extended Herschel drop-out source in the center of AS1063: a normal dusty galaxy at z=6.1 or SZ substructures?

Johan Richard, Jean-Paul Richard Kneib, Benjamin Yvan Alexandre Clement

In the course of our 870 mu m APEX/LABOCA follow-up of the Herschel Lensing Survey we have detected a source in AS1063 (RXC J2248.7-4431) that has no counterparts in any of the Herschel PACS/SPIRE bands, it is a Herschel "drop-out" with S-870/S-500 >= 0.5. ...

EDP Sciences2013

HerMES: a deficit in the surface brightness of the cosmic infrared background due to galaxy cluster gravitational lensing

Johan Richard, Jean-Paul Richard Kneib, Huu Tuan Nguyen

We have observed four massive galaxy clusters with the SPIRE instrument on the Herschel Space Observatory and measure a deficit of surface brightness within their central region after removing detected sources. We simulate the effects of instrumental sensi ...

Iop Publishing Ltd2013

A new window of exploration in the mass spectrum: strong lensing by galaxy groups in the SL2S

Johan Richard, Jean-Paul Richard Kneib

The existence of strong lensing systems with Einstein radii covering the full mass spectrum, from similar to 1-2 '' (produced by galaxy scale dark matter haloes) to >10 '' (produced by galaxy cluster scale haloes) have long been predicted. Many lenses with ...

2009

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