138 citations
- Centre National de la Recherche ScientifiqueFR3 papers
- Leibniz Institute for Solid State and Materials ResearchDE3 papers
- National Academy of Sciences of UkraineUA3 papers
- CEA Paris-SaclayFR2 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2 papers
- ETH ZurichCH2 papers
- Institut de Physique ThéoriqueFR2 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2 papers
- Laboratoire de Physique ThéoriqueFR2 papers
- Max Planck Institute for the Physics of Complex SystemsDE2 papers
- Paul Scherrer InstituteCH2 papers
5 papers · 1 filter
ZEN and the search for high-redshift galaxies
J. P. Willis, F. Courbin, J-P. Kneib +1
We present the ZEN (z equals nine) survey: a deep, narrow J-band search for proto-galactic Lya emission at redshifts z=9. In the first phase of the survey, dubbed ZEN1, we combine…
Discovery of a bright quasar without a massive host galaxy
Pierre Magain, Geraldine Letawe, Frederic Courbin +4
Quasars are thought to be powered by the infall of matter onto a supermassive black hole at the centre of massive galaxies. As the optical luminosity of quasars exceeds that of the…
An optical time delay for the double gravitational lens system FBQ 0951+2635
P. Jakobsson, J. Hjorth, I. Burud +3
We present optical R-band light curves of the double gravitationally lensed quasar FBQ 0951+2635 from observations obtained at the Nordic Optical Telescope between March 1999 and J…
Primordial constraint on the spatial dependence of the Newton constant
V. Boucher, J. -M. Gerard, P. Vandergheynst +1
A Nordtvedt effect at cosmological scales affects the acoustic oscillations imprinted in the cosmic microwave background. The gravitational baryonic mass density of the universe is…
Cosmic microwave background constraints on the strong equivalence principle
V. Boucher, J. -M. Gerard, P. Vandergheynst +1
We study the effect of a violation of the strong equivalence principle (SEP) on the cosmic microwave background (CMB). Such a violation would modify the weight of baryons in the pr…