Person

Johan Richard

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

About this result

Related publications (46)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

Probing the faint-end luminosity function of Lyman-alpha emitters at 3 < z < 7 behind 17 MUSE lensing clusters

Johan Richard, Benjamin Yvan Alexandre Clement

Context. This paper presents a study of the galaxy Lyman-alpha luminosity function (LF) using a large sample of 17 lensing clusters observed by the Multi Unit Spectroscopic Explorer (MUSE) at the ESO Very Large Telescope (VLT). The magnification resulting ...

Edp Sciences S A2023

A new step forward in realistic cluster lens mass modelling: analysis of Hubble Frontier Field Cluster Abell S1063 from joint lensing, X-ray, and galaxy kinematics data

Johan Richard, Jean-Paul Richard Kneib, Mathilde Jauzac, Benjamin Yvan Alexandre Clement, Benjamin Emmanuel Nicolas Beauchesne

We present a new method to simultaneously and self-consistently model the mass distribution of galaxy clusters that combines constraints from strong lensing features, X-ray emission, and galaxy kinematics measurements. We are able to successfully decompose ...

Oxford Univ Press2023

Revealing galaxy candidates out to z similar to 16 with JWST observations of the lensing cluster SMACS0723

Johan Richard, Jean-Paul Richard Kneib, Hakim Atek

One of the main goals of the JWST is to study the first galaxies in the Universe. We present a systematic photometric analysis of very distant galaxies in the first JWST deep field towards the massive lensing cluster SMACS0723. As a result, we report the d ...

OXFORD UNIV PRESS2023

People doing similar research (5)

Jean-Paul Richard Kneib

Pascale Jablonka

Pascale Jablonka is a French/Swiss astrophysicist who specializes in the area of galaxy evolution. She earned a doctorate in astrophysics from the University Paris 7- Denis Diderot in France. She then held a postdoctoral fellowship at the Headquarter of the European Southern Observatory (ESO, Germany), before obtaining a position at CNRS (France). She is currently Directrice de Recherche at CNRS and on leave of absence from Paris Observatory in the Laboratoire d'astrophysique of EPFL. Pascale Jablonka conducts both observations and numerical simulations to gain insights into the formation and evolution of galaxies. Her research focuses on three main topics : > Understanding the nature of the first stars in the Universe > Infering the driving parameters of the galaxy star formation histories > Deciphering the impact of the environment on galaxy evolution. Her research exploits ground-based and space telescopes as well as high performance computing facilities.

Frédéric Courbin

After his studies in fundamental physics at the University of Paris-XI (Orsay, France), Frédéric Courbin carried out his PhD work between the Astrophysics Institute of the University of Liège (Belgium), Paris Observatory (France), and the European Southern Observatory (Germany). In 1999, he left Europe for three years, taking advantage of the clear skies of Chile to carry out his research using the brand new Very Large Telescope, constructed by Europe in the Atacama desert. In 2004, after two years of a Marie Curie fellowship at the University of Liège, he joint the Laboratory of Astrophysics, where he is now Professor. His main fields of activity are in observational cosmology and extragalactic astrophysics as well as in image and signal processing. In 2018, he was awarded an ERC Advanced Grant in connection with his work in cosmology with gravitational lenses. At EPFL, he is a member of the committee for the Physics Doctoral School since 2013 and has been the tutor of more than 30 PhD students. He is a member of the EPFL Council for the Faculty of Basic Sciences since 2018 and a member of the School Assembly since 2020.

Georges Meylan

After his PhD thesis in astrophysics in 1985 at the Astronomical Observatory of the University of Geneva, Georges Meylan spent some years as a postdoc at the University of California in Berkeley, USA, and at the Headquarters of the European Southern Observatory (ESO) in Munich, Germany. He then hold senior astronomer positions at ESO in Munich and at the Space Telescope Science Institute (STScI) in Baltimore, USA. Since 2004, he holds the chair of astrophysics at EPFL. His research interests are related to observational cosmology, including the phenomenon of gravitational lensing, quasars and their host galaxies, the formation and evolution of galaxies from the early Universe to the present time, stellar dynamics and stellar populations from the nearby to the most distant galaxies.