Detectability of the 21 cm-CMB cross-correlation from the EoR (2009)
Tashiro, Hiroyuki, Aghanim, Nabila, Langer, Mathieu, Douspis, Marian, Zaroubi, Saleem, Jelic, Vibor
The 21-cm line fluctuations and the cosmic microwave background (CMB) are powerful probes of the epoch of reionisation of the universe. We study the potential of the cross-correlation between 21-cm...
Jelic, Vibor, Zaroubi, Saleem, Aghanim, Nabila, Douspis, Marian, Koopmans, Leon V. E., Langer, Mathieu, ...
The Universe's Epoch of Reionization (EoR) can be studied using a number of observational probes that provide complementary or corroborating information. Each of these probes suffers from its own...
Schaefer, Bjoern Malte, Douspis, Marian, Aghanim, Nabila
The subject of this paper is a quantification of the impact of uncertainties in bias and bias evolution on the interpretation of measurements of the integrated Sachs-Wolfe effect, in particular on...
Biases on the cosmological parameters and thermal SZ residuals (2008)
Taburet, Nicolas, Aghanim, Nabila, Douspis, Marian, Langer, Mathieu
We examine the biases induced on cosmological parameters when the presence of secondary anisotropies is not taken into account in Cosmic Microwave Background analyses. We first develop an exact...
Summary of the DUNE Mission Concept (2008)
Refregier, Alexandre, Douspis, Marian, Collaboration, The DUNE
The Dark UNiverse Explorer (DUNE) is a wide-field imaging mission concept whose primary goal is the study of dark energy and dark matter with unprecedented precision. To this end, DUNE is optimised...
Tashiro, Hiroyuki, Aghanim, Nabila, Langer, Mathieu, Douspis, Marian, Zaroubi, Saleem
The cosmic microwave background (CMB) polarisation and the 21 cm line fluctuations are powerful probes of cosmological reionisation. We study how the cross-correlation between the CMB polarisation...
Optimising large galaxy surveys for ISW detection (2008)
Douspis, Marian, Castro, Patricia G., Caprini, Chiara, Aghanim, Nabila
We report on investigations of the power of next generation cosmic microwave background and large scale structure surveys in constraining the nature of dark energy through the cross-correlation of...
Constraints On Cosmological Parameters From Current Cmb Data (2007)
James Bartlett, Alain Blanchard, Marian Douspis, Morvan Le Dour
. We discuss the constraints one can place on cosmological parameters using current cosmic microwave background data. A standard Ø 2 -- minimization over band--power estimates is first presented,...
What can we learn about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine some of the constraints that can be obtained on a two parameters model of dark energy in which the characteristic parameter of the equation of state $w (z) = P(z) / \rho (z)$ does not vary...
What can we learn about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine some of the constraints that can be obtained on a two parameters model of dark energy in which the characteristic parameter of the equation of state $w (z) = P(z) / \rho (z)$ does not vary...
What can we learn about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine some of the constraints that can be obtained on a two parameters model of dark energy in which the characteristic parameter of the equation of state $w (z) = P(z) / \rho (z)$ does not vary...
What can we learn about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine some of the constraints that can be obtained on a two parameters model of dark energy in which the characteristic parameter of the equation of state $w (z) = P(z) / \rho (z)$ does not vary...
What can we learn about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine some of the constraints that can be obtained on a two parameters model of dark energy in which the characteristic parameter of the equation of state $w (z) = P(z) / \rho (z)$ does not vary...
What can be learned about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine constraints obtained from SNIa surveys on a two parameter model of dark energy in which the equation of state $w (z) = P(z) / \rho (z)$ undergoes a transition over a period significantly...
Small scale contributions to CMB: A coherent analysis (2006)
Douspis, Marian, Aghanim, Nabila, Langer, Mathieu
We reanalyse Cosmic Microwave Background data from experiments probing both large and small scales. We assume that measured anisotropies are due not only to primary fluctuations but also, especially...
Small scale contributions to CMB: A coherent analysis (2006)
Douspis, Marian, Aghanim, Nabila, Langer, Mathieu
We reanalyse Cosmic Microwave Background data from experiments probing both large and small scales. We assume that measured anisotropies are due not only to primary fluctuations but also, especially...
Small scale contributions to CMB: A coherent analysis (2006)
Douspis, Marian, Aghanim, Nabila, Langer, Mathieu
We reanalyse Cosmic Microwave Background data from experiments probing both large and small scales. We assume that measured anisotropies are due not only to primary fluctuations but also, especially...
Small scale contributions to CMB: A coherent analysis (2006)
Douspis, Marian, Aghanim, Nabila, Langer, Mathieu
We reanalyse Cosmic Microwave Background data from experiments probing both large and small scales. We assume that measured anisotropies are due not only to primary fluctuations but also, especially...
Small scale contributions to CMB: A coherent analysis (2006)
Douspis, Marian, Aghanim, Nabila, Langer, Mathieu
We reanalyse Cosmic Microwave Background data from experiments probing both large and small scales. We assume that measured anisotropies are due not only to primary fluctuations but also, especially...
What can be learned about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine constraints obtained from SNIa surveys on a two parameter model of dark energy in which the equation of state $w (z) = P(z) / \rho (z)$ undergoes a transition over a period significantly...
What can be learned about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine constraints obtained from SNIa surveys on a two parameter model of dark energy in which the equation of state $w (z) = P(z) / \rho (z)$ undergoes a transition over a period significantly...
What can be learned about dark energy evolution? (2006)
Douspis, Marian, Zolnierowski, Yves, Blanchard, Alain, Riazuelo, Alain
We examine constraints obtained from SNIa surveys on a two parameter model of dark energy in which the equation of state $w (z) = P(z) / \rho (z)$ undergoes a transition over a period significantly...
Large-scale galaxy correlations as a test for dark energy (2005)
Blanchard, Alain, Douspis, Marian, Rowan-Robinson, Michael, Sarkar, Subir
We have shown earlier that, contrary to popular belief, Einstein--de Sitter (E--deS) models can still fit the {\sl WMAP} data on the cosmic microwave background provided one adopts a low Hubble...
Evidence for new physics from clusters ? (2005)
Blanchard, Alain, Douspis, Marian
The abundance of local clusters is a traditional way to derive the amplitude of matter fluctuations. In the present work, by assuming that the observed baryon content of clusters is representative of...
Evidence for new physics from clusters ? (2005)
Blanchard, Alain, Douspis, Marian
The abundance of local clusters is a traditional way to derive the amplitude of matter fluctuations. In the present work, by assuming that the observed baryon content of clusters is representative of...
Evidence for new physics from clusters ? (2005)
Blanchard, Alain, Douspis, Marian
The abundance of local clusters is a traditional way to derive the amplitude of matter fluctuations. In the present work, by assuming that the observed baryon content of clusters is representative of...
Evidence for new physics from clusters ? (2005)
Blanchard, Alain, Douspis, Marian
The abundance of local clusters is a traditional way to derive the amplitude of matter fluctuations. In the present work, by assuming that the observed baryon content of clusters is representative of...
New Physics In Clusters of Galaxy: A New Dark Matter Component ? (2004)
The latest cosmological observables analyses seem to converge to a concordant view of the cosmological model: namely the power law Lambda-CDM. The recent WMAP results comfort this new standard model....
Initial power spectrum shape (2004)
Mainly used to set constraints on cosmological parameters, CMB anisotropies can give information on primordial universe. Unfortunately, initial conditions and late time cosmology are degenerated. I...
Evidence for new physics from clusters ? (2004)
Blanchard, Alain, Douspis, Marian
The abundance of local clusters is a traditional way to derive the amplitude of matter fluctuations. In the present work, by assuming that the observed baryon content of clusters is representative of...
A new search for features in the primordial power spectrum (2004)
Tocchini-Valentini, Domenico, Douspis, Marian, Silk, Joseph
We develop a new approach toward a high resolution non-parametric reconstruction of the primordial power spectrum using WMAP cosmic microwave background temperature anisotropies that we confront with...
Cosmological Parameter Estimation: Method (2004)
CMB anisotropy data could put powerful constraints on theories of the evolution of our Universe. Using the observations of the large number of CMB experiments, many studies have put constraints on...
Cosmological implications from the observed properties of CMB (2004)
Blanchard, Alain, Bartlett, James G., Douspis, Marian
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify...
Scale of Homogeneity of the Universe from WMAP (2003)
Castro, Patricia G., Douspis, Marian, Ferreira, Pedro G.
We review the physics of the Grishchuck-Zel'dovich effect which describes the impact of large amplitude, super-horizon gravitational field fluctuations on the Cosmic Microwave Background anisotropy...
An alternative to the cosmological 'concordance model' (2003)
Blanchard, Alain, Douspis, Marian, Rowan-Robinson, Michael, Sarkar, Subir
Precision measurements of the cosmic microwave background by WMAP are believed to have established a flat $\Lambda$-dominated universe, seeded by nearly scale-invariant adiabatic primordial...
Cosmological implications from the observed properties ofCMB. (2003)
Blanchard, Alain, Bartlett, James, Douspis, Marian
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify...
Cosmological Parameter Estimation: Method (2003)
CMB anisotropy data could put powerful constraints on theories of the evolution of our Universe. Using the observations of the large number of CMB experiments, many studies have put constraints on...
An alternative to the cosmological 'concordance model' (2003)
Blanchard, Alain, Douspis, Marian, Rowan-Robinson, Michael, Sarkar, Subir
Precision measurements of the cosmic microwave background byWMAP are believed to have established a flat $\Lambda$-dominateduniverse, seeded by nearly scale-invariant adiabatic...
Cosmological implications from the observed properties of CMB. (2003)
Blanchard, Alain, Bartlett, James, Douspis, Marian
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify...
Cosmological Parameter Estimation: Method (2003)
CMB anisotropy data could put powerful constraints on theories of the evolution of our Universe. Using the observations of the large number of CMB experiments, many studies have put constraints on...
An alternative to the cosmological 'concordance model' (2003)
Blanchard, Alain, Douspis, Marian, Rowan-Robinson, Michael, Sarkar, Subir
Precision measurements of the cosmic microwave background byWMAP are believed to have established a flat $\Lambda$-dominateduniverse, seeded by nearly scale-invariant adiabatic...
Cosmological implications from the observed properties of CMB. (2003)
Blanchard, Alain, Bartlett, James, Douspis, Marian
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify...
Cosmological Parameter Estimation: Method (2003)
CMB anisotropy data could put powerful constraints on theories of the evolution of our Universe. Using the observations of the large number of CMB experiments, many studies have put constraints on...
An alternative to the cosmological 'concordance model' (2003)
Blanchard, Alain, Douspis, Marian, Rowan-Robinson, Michael, Sarkar, Subir
Precision measurements of the cosmic microwave background byWMAP are believed to have established a flat $\Lambda$-dominateduniverse, seeded by nearly scale-invariant adiabatic...
Cosmological implications from the observed properties of CMB. (2003)
Blanchard, Alain, Bartlett, James, Douspis, Marian
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify...
An alternative to the cosmological 'concordance model' (2003)
Blanchard, Alain, Douspis, Marian, Rowan-Robinson, Michael, Sarkar, Subir
Precision measurements of the cosmic microwave background byWMAP are believed to have established a flat $\Lambda$-dominateduniverse, seeded by nearly scale-invariant adiabatic...
Cosmological Parameter Estimation: Method (2003)
CMB anisotropy data could put powerful constraints on theories of the evolution of our Universe. Using the observations of the large number of CMB experiments, many studies have put constraints on...
Cosmological implications from the observed properties of CMB. (2003)
Blanchard, Alain, Bartlett, James, Douspis, Marian
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify...