266 citations · 1.1k across the 12 of their papers we have counts for
12 papers
High-overtone fits to numerical relativity ringdowns: beyond the dismissed n=8 special tone
Xisco Jiménez Forteza, Pierre Mourier
In general relativity, the remnant object originating from an uncharged black hole merger is a Kerr black hole. The approach to this final state is reached through the emission of…
Quasinormal modes and their overtones at the common horizon in a binary black hole merger
Pierre Mourier, Xisco Jiménez Forteza, Daniel Pook-Kolb +2
It is expected that all astrophysical black holes in equilibrium are well described by the Kerr solution. Moreover, any black hole far away from equilibrium, such as one initially…
On average properties of inhomogeneous fluids in general relativity III: general fluid cosmologies
Thomas Buchert, Pierre Mourier, Xavier Roy
We investigate effective equations governing the volume expansion of spatially averaged portions of inhomogeneous cosmologies in spacetimes filled with an arbitrary fluid. This wor…
The Acceleration of Superrotation in Simulated Hot Jupiter Atmospheres
Florian Debras, Nathan Mayne, Isabelle Baraffe +5
Context. Atmospheric superrotating flows at the equator are an almost ubiquitous result of simulations of hot Jupiters, and a theory explaining how this zonally coherent flow reach…
On the covariance of scalar averaging and backreaction in relativistic inhomogeneous cosmology
Asta Heinesen, Pierre Mourier, Thomas Buchert
We introduce a generalization of the 4-dimensional averaging window function of Gasperini, Marozzi and Veneziano (2010) that may prove useful for a number of applications. The cova…
Lagrangian theory of structure formation in relativistic cosmology. V. Irrotational fluids
Yong-Zhuang Li, Pierre Mourier, Thomas Buchert +1
We extend the general relativistic Lagrangian perturbation theory, recently developed for the formation of cosmic structures in a dust continuum, to the case of model universes con…
Cosmological backreaction and its dependence on spacetime foliation
Thomas Buchert, Pierre Mourier, Xavier Roy
The subject of cosmological backreaction in General Relativity is often approached by coordinate-dependent and metric-based analyses. We present in this letter an averaging formali…
Order-unity argument for structure-generated "extra" expansion
Boudewijn F. Roukema, Jan J. Ostrowski, Thomas Buchert +1
Self-consistent treatment of cosmological structure formation and expansion within the context of classical general relativity may lead to "extra" expansion above that expected in…
The background Friedmannian Hubble constant in relativistic inhomogeneous cosmology and the age of the Universe
Boudewijn F. Roukema, Pierre Mourier, Thomas Buchert +1
In relativistic inhomogeneous cosmology, structure formation couples to average cosmological expansion. A conservative approach to modelling this assumes an Einstein--de Sitter mod…
Cloudless atmospheres for L/T dwarfs and extra-solar giant planets
P. Tremblin, D. S. Amundsen, G. Chabrier +5
The admitted, conventional scenario to explain the complex spectral evolution of brown dwarfs (BD) since their first detections twenty years ago, has always been the key role playe…
A uniform analysis of HD209458b Spitzer/IRAC lightcurves with Gaussian process models
Thomas M. Evans, Suzanne Aigrain, Neale Gibson +4
We present an analysis of Spitzer/IRAC primary transit and secondary eclipse lightcurves measured for HD209458b, using Gaussian process models to marginalise over the intrapixel se…
Fingering convection and cloudless models for cool brown dwarf atmospheres
P. Tremblin, D. S. Amundsen, P. Mourier +5
This work aims to improve the current understanding of the atmospheres of brown dwarfs, especially cold ones with spectral type T and Y, whose modeling is a current challenge. Sili…