Leauthaud, A., Finoguenov, A., Kneib, J. P., Taylor, J. E., Massey, R., Rhodes, J., ...
Measurements of X-ray scaling laws are critical for improving cosmological constraints derived with the halo mass function and for understanding the physical processes that govern the heating and...
Light on Dark Matter with Weak Gravitational Lensing (2009)
This paper reviews statistical methods recently developed to reconstruct and analyze dark matter mass maps from weak lensing observations. The field of weak lensing is motivated by the observations...
Cosmic Shear Systematics: Software-Hardware Balance (2009)
Amara, A., Refregier, A., Paulin-Henriksson, S.
Cosmic shear measurements rely on our ability to measure and correct the Point Spread Function (PSF) of the observations. This PSF is measured using stars in the field, which give a noisy measure at...
Cosmological models discrimination with Weak Lensing (2009)
Pires, S., Amara, A., Refregier, A., Teyssier, R.
Weak gravitational lensing provides a unique method to map directly the dark matter in the Universe. The majority of lensing analyses uses the two-point statistics of the cosmic shear field to...
Optimal PSF modelling for weak lensing: complexity and sparsity (2009)
Paulin-Henriksson, S., Refregier, A., Amara, A.
We investigate the impact of Point Spread Function (PSF) fitting errors on cosmic shear measurements using the concepts of complexity and sparsity. Complexity, introduced in a previous paper,...
Cosmological Systematics Beyond Nuisance Parameters : Form Filling Functions (2008)
Kitching, T. D., Amara, A., Abdalla, F. B., Joachimi, B., Refregier, A.
In the absence of any compelling physical model, cosmological systematics are often misrepresented as statistical effects and the approach of marginalising over extra nuisance systematic parameters...
Pires, S., Amara, A., Teyssier, R., Refregier, A., Fadili, J.
With increasingly large data sets, weak lensing measurements are able to measure cosmological parameters with ever greater precision. However this increased accuracy also places greater demands on...
Pacaud, F, Pierre, M, Adami, C, Altieri, B, Andreon, S, Chiappetti, L, ...
We present a sample of 29 galaxy clusters from the XMM-LSS survey over an area of some 5 deg(2) out to a redshift of z = 1.05. The sample clusters, which represent about half of the X-ray clusters...
PSF calibration requirements for dark energy from cosmic shear (2007)
Paulin-Henriksson, S., Amara, A., Voigt, L., Refregier, A., Bridle, S. L.
The control of systematic effects when measuring galaxy shapes is one of the main challenges for cosmic shear analyses. In this context, we study the fundamental limitations on shear accuracy due to...
Weak Lensing by Large-Scale Structure with the FIRST Radio Survey (2007)
Refregier Brown Kamionkowski, A. Refregier, S. T. Brown, M. Kamionkowski, D. J. Helf, R. Becker, ...
. The coherent image distortions induced by weak gravitational lensing can be used to measure the power spectrum of density inhomogeneities in the universe. We present our on-going effort to detect...
The XMM-Large scale structure catalogue: X-ray sources and associated optical data. Version I (2007)
Pierre, M, Chiappetti, L, Pacaud, F, Gueguen, A, Libbrecht, C, Altieri, B, ...
Following the presentation of the XMM-Large Scale Structure (XMM-LSS) survey X-ray source detection package by Pacaud et al., we provide the source lists for the first surveyed 5.5 deg(2). The...
Pacaud, F., Pierre, M., Adami, C., Altieri, B., Andreon, S., Chiappetti, L., ...
We present a sample of 29 galaxy clusters from the XMM-LSS survey over an area of some 5deg2 out to a redshift of z=1.05. The sample clusters, which represent about half of the X-ray clusters...
The XMM-LSS catalogue: X-ray sources and associated optical data. Version I (2007)
Pierre, M., Chiappetti, L., Pacaud, F., Gueguen, A., Libbrecht, C., Altieri, B., ...
Following the presentation of the XMM-LSS X-ray source detection package by Pacaud et al., we provide the source lists for the first 5.5 surveyed square degrees. The catalogues pertain to the [0.5-2]...
DUNE: The Dark Universe Explorer (2007)
Refregier, A., Boulade, O., Mellier, Y., Milliard, B., Pain, R., Michaud, J., ...
Understanding the nature of Dark Matter and Dark Energy is one of the most pressing issues in cosmology and fundamental physics. The purpose of the DUNE (Dark UNiverse Explorer) mission is to study...
Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements (2007)
Leauthaud, A., Massey, R., Kneib, J. P., Rhodes, J., Johnston, D. E., Capak, P., ...
With a primary goal of conducting precision weak lensing measurements from space, the COSMOS survey has imaged the largest contiguous area observed by the Hubble Space Telescope (HST) to date using...
Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements (2007)
Leauthaud, A., Massey, R., Kneib, J. P., Rhodes, J., Johnston, D. E., Capak, P., ...
With a primary goal of conducting precision weak lensing measurements from space, the COSMOS survey has imaged the largest contiguous area observed by the Hubble Space Telescope (HST) to date using...
COSMOS: Hubble space telescope observations (2007)
Scoville, N., Abraham, R. G., Aussel, H., Barnes, J. E., Benson, A., Blain, A. W., ...
COSMOS: Hubble Space Telescope observations (2007)
Scoville, N., Abraham, R. G., Aussel, H., Barnes, J. E., Benson, A., Blain, A. W., ...
The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope (HST) for high-resolution imaging. Here we review the...
COSMOS : Hubble Space Telescope Observations (2006)
Scoville, N., Benson, A., Blain, A. W., Calzetti, D., Comastri, A., Capak, P., ...
The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope (HST) for high resolution imaging. Here we review the...
Supernova / Acceleration Probe: A Satellite Experiment to Study the Nature of the Dark Energy (2006)
Aldering, G., Althouse, W., Amanullah, R., Annis, J., Astier, P., Baltay, C., ...
The Supernova / Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universe's expansion by...
The XMM Large-Scale Structure survey: the X-ray pipeline and survey selection function (2006)
Pacaud, F, Pierre, M, Refregier, A, Gueguen, A, Starck, JL, Valtchanov, I, ...
We present the X-ray pipeline developed for the purpose of the cluster search in the XMM Large-Scale Structure (XMM-LSS) survey. It is based on a two-stage procedure via a dedicated handling of the...
DUNE: The Dark Universe Explorer (2006)
Refregier, A., Boulade, O., Mellier, Y., Milliard, B., Pain, R., Michaud, J., ...
Understanding the nature of Dark Matter and Dark Energy is one of the most pressing issues in cosmology and fundamental physics. The purpose of the DUNE (Dark UNiverse Explorer) mission is to study...
An Integral Field Spectrograph for SNAP Supernova Identification (2006)
Ealet, A., Prieto, E., Bonissent, A., Malina, R., Bernstein, G.M., Basa, S., ...
A well-adapted spectrograph concept has been developed for the SNAP (SuperNova/Acceleration Probe) experiment. The goal is to ensure proper identification of Type Ia supernovae and to standardize the...
The XMM Large Scale Structure survey: The X-ray pipeline and survey selection function (2006)
Pacaud, F., Pierre, M., Refregier, A., Gueguen, A., Valtchanov, I., ...
We present the X-ray pipeline developed for the purpose of the cluster search in the XMM-LSS survey. It is based on a two-stage procedure via a dedicated handling of the Poisson nature of the signal:...
Prospects for Dark Energy Evolution: a Frequentist Multi-Probe Approach (2006)
Yeche, C., Ealet, A., Refregier, A., Tao, C., Tilquin, A., ...
A major quest in cosmology is the understanding of the nature of dark energy. It is now well known that a combination of cosmological probes is required to break the underlying degeneracies on...
The XMM-LSS survey. Survey design and first results (2006)
Pierre, M., Valtchanov, I., Altieri, B., Andreon, S., Bolzonella, M., Bremer, M., ...
We have designed a medium deep large area X-ray survey with XMM - the XMM Large Scale Structure survey, XMM-LSS - with the scope of extending the cosmological tests attempted using ROSAT cluster...
The Shear Testing Programme - I. Weak lensing analysis of simulated ground-based observations (2006)
Heymans, C., Van Waerbeke, L., Bacon, D., Berge, J., Bernstein, G., Bertin, E., ...
The Shear Testing Programme (STEP) is a collaborative project to improve the accuracy and reliability of all weak lensing measurements in preparation for the next generation of wide-field surveys. In...
Cosmology with wide-field SZ cluster surveys: Selection and Systematic Effects (2005)
Juin, J. B., Yvon, D., Refregier, A., Yeche, C.
The cosmological potential of large-scale structure observations for cosmology have been extensively discussed in the litterature. In particular, it has recently been shown how Sunyaev-Zel'dovich...
Supernova Acceleration Probe: Studying Dark Energy with Type Ia Supernovae (2005)
Albert, J., Aldering, G., Allam, S., Althouse, W., Amanullah, R., Annis, J., ...
The Supernova Acceleration Probe (SNAP) will use Type Ia supernovae (SNe Ia) as distance indicators to measure the effect of dark energy on the expansion history of the Universe. (SNAP's weak-lensing...
Albert, J., Aldering, G., Allam, S., Althouse, W., Amanullah, R., Annis, J., ...
SNAP is a candidate for the Joint Dark Energy Mission (JDEM) that seeks to place constraints on the dark energy using two distinct methods. The first, Type Ia SN, is discussed in a companion white...
Seeing the Nature of the Accelerating Physics: It's a SNAP (2005)
Aldering, G., Althouse, W., Amanullah, R., Annis, J., Astier, P., Baltay, C., ...
For true insight into the nature of dark energy, measurements of the precision and accuracy of the Supernova/Acceleration Probe (SNAP) are required. Precursor or scaled-down experiments are...
Wide-field surveys from the SNAP mission (2005)
Kim, A.G., Akerlof, C.W., Aldering, G., Amanullah, R., Astier, P., Barrelet, E., ...
Prospects for Dark Energy Evolution: a Frequentist Multi-Probe Approach (2005)
Yeche, Ch., Ealet, A., Refregier, A., Tao, C., Tilquin, A., ...
A major quest in cosmology is the understanding of the nature of dark energy. It is now well known that a combination of cosmological probes is required to break the underlying degeneracies on...
Supernova Acceleration Probe: Studying Dark Energy with Type Ia Supernovae (2005)
Albert, J., Aldering, G., Allam, S., Althouse, W., Amanullah, R., Annis, J., ...
The Supernova Acceleration Probe (SNAP) will use Type Ia supernovae (SNe Ia) as distance indicators to measure the effect of dark energy on the expansion history of the Universe. (SNAP's weak-lensing...
Albert, J., Aldering, G., Allam, S., Althouse, W., Amanullah, R., Annis, J., ...
SNAP is a candidate for the Joint Dark Energy Mission (JDEM) that seeks to place constraints on the dark energy using two distinct methods. The first, Type Ia SN, is discussed in a companion white...
Seeing the Nature of the Accelerating Physics: It's a SNAP (2005)
Aldering, G., Althouse, W., Amanullah, R., Annis, J., Astier, P., Baltay, C., ...
For true insight into the nature of dark energy, measurements of the precision and accuracy of the Supernova/Acceleration Probe (SNAP) are required. Precursor or scaled-down experiments are...
Supernova Acceleration Probe: Studying Dark Energy with Type Ia Supernovae (2005)
Albert, J., Aldering, G., Allam, S., Althouse, W., Amanullah, R., Annis, J., ...
The Supernova Acceleration Probe (SNAP) will use Type Ia supernovae (SNe Ia) as distance indicators to measure the effect of dark energy on the expansion history of the Universe. (SNAP's weak-lensing...
Albert, J., Aldering, G., Allam, S., Althouse, W., Amanullah, R., Annis, J., ...
SNAP is a candidate for the Joint Dark Energy Mission (JDEM) that seeks to place constraints on the dark energy using two distinct methods. The first, Type Ia SN, is discussed in a companion white...
Seeing the Nature of the Accelerating Physics: It's a SNAP (2005)
Aldering, G., Althouse, W., Amanullah, R., Annis, J., Astier, P., Baltay, C., ...
For true insight into the nature of dark energy, measurements of the precision and accuracy of the Supernova/Acceleration Probe (SNAP) are required. Precursor or scaled-down experiments are...
Prospects for Dark Energy Evolution: a Frequentist Multi-Probe Approach (2005)
Yeche, C., Ealet, A., Refregier, A., Tao, C., Tilquin, A., ...
A major quest in cosmology is the understanding of the nature of dark energy. It is now well known that a combination of cosmological probes is required to break the underlying degeneracies on...
Prospects for Dark Energy Evolution: a Frequentist Multi-Probe Approach (2005)
Yeche, C., Ealet, A., Refregier, A., Tao, C., Tilquin, A., ...
A major quest in cosmology is the understanding of the nature of dark energy. It is now well known that a combination of cosmological probes is required to break the underlying degeneracies on...
Supernova / Acceleration Probe: A Satellite Experiment to Study the Nature of the Dark Energy (2004)
Aldering, SNAP Collaboration: G., Althouse, W., Amanullah, R., Annis, J., Astier, P., Baltay, C., ...
The Supernova / Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universe's expansion by...
The XMM-LSS survey. Survey design and first results (2004)
Pierre, M., Valtchanov, I., Altieri, B., Andreon, S., Bolzonella, M., Bremer, M., ...
We have designed a medium deep large area X-ray survey with XMM - the XMM Large Scale Structure survey, XMM-LSS - with the scope of extending the cosmological tests attempted using ROSAT cluster...
Weak lensing from space I: instrumentation and survey strategy (2004)
Rhodes, J., Refregier, A., Massey, R., Albert, J., Bacon, D., Bernstein, G., ...
Weak lensing from space I: instrumentation and survey strategy (2004)
Rhodes, J., Refregier, A., Massey, R., Albert, J., Bacon, D., Bernstein, G., ...
The XMM-LSS survey. Survey design and first results (2004)
Pierre, M., Valtchanov, I., Altieri, B., Andreon, S., Bolzonella, M., Bremer, M., ...
We have designed a medium deep large area X-ray survey with XMM - the XMM Large Scale Structure survey, XMM-LSS - with the scope of extending the cosmological tests attempted using ROSAT cluster...
Power Spectrum Normalisation and the Non-Gaussian Halo Model (2003)
The normalisation of the matter power spectrum, sigma_8, is an essential ingredient to predict the phenomenology of the low redshift universe. It has been measured using several methods, such as...
SNAP Satellite Focal Plane Development (2003)
Bebek, C., Akerlof, C., Aldering, G., Amanullah, R., Astier, P., Baltay, C., ...
The proposed SuperNova/Acceleration Probe (SNAP) mission will have a two-meter class telescope delivering diffraction-limited images to an instrumented 0.7 square degree field in the visible and...
The XMM-LSS survey. Survey design and first results (2003)
Pierre, M., Valtchanov, I., Altieri, B., Andreon, S., Bolzonella, M., Bremer, M., ...
We have designed a medium deep large area X-ray survey with XMM - the XMM Large Scale Structure survey, XMM-LSS - with the scope of extending the cosmological tests attempted using ROSAT cluster...
Overview of the SuperNova/Acceleration probe (SNAP) (2003)
Ealet, A., Prieto, E., Bonissent, A., Malina, R., Bernstein, G.M., Basa, S., ...
Overview of the SuperNova/Acceleration probe (SNAP) (2003)
Ealet, A., Prieto, E., Bonissent, A., Malina, R., Bernstein, G.M., Basa, S., ...
The SNAP near infrared detectors (2002)
Tarle, G., Akerlof, C., Aldering, G., Amanullah, R., Astier, P., Barrelet, E., ...
An integral field spectrograph for SNAP supernova studies (2002)
Ealet, Anne, Prieto, E., Bonissent, A., Malina, R., Basa, S., LeFevre, O., ...
Overview of the SuperNova/Acceleration probe (SNAP) (2002)
Aldering, Gregory L., Akerlof, C.W., Amanullah, R., Astier, P., Barrelet, E., Bebek, C., ...
Wide-field surveys from the SNAP mission (2002)
Kim, Alex G., Akerlof, C.W., Aldering, G., Amanullah, R., Astier, P., Barrelet, E., ...
Cosmological Parameters, Dark Energy and Large Scale Structure (2002)
Deustua, S. E., Caldwell, R., Garnavich, P., Hui, L., Refregier, A.
We review the current status of cosmological parameters, dark energy and large-scale structure, from a theoretical and observational perspective. We first present the basic cosmological parameters...
Cosmic Shear and Power Spectrum Normalization with the Hubble Space Telescope (2002)
Refregier, A., Rhodes, J., Groth, E. J.
Weak lensing by large-scale structure provides a direct measurement of matter fluctuations in the universe. We report a measurement of this `cosmic shear' based on 271 WFPC2 archival images from the...
The XMM Large Scale Structure Survey: Scientific Motivation and First Observations (2002)
Pierre, M., Valtchanov, I., Refregier, A.
Thanks to its unrivalled sensitivity and large field of view, XMM potentially occupies a leading position as a survey instrument. We present cosmological arguments in favour of a medium-sensitivity,...
Overview of the SuperNova/Acceleration probe (SNAP) (2002)
Aldering, G., Akerlof, C.W., Amanullah, R., Astier, P., Barrelet, E., Bebek, C., ...
Wide-field surveys from the SNAP mission (2002)
Kim, A.G., Akerlof, C.W., Aldering, G., Amanullah, R., Astier, P., Barrelet, E., ...
Overview of the SuperNova/Acceleration probe (SNAP) (2002)
Aldering, G., Akerlof, C.W., Amanullah, R., Astier, P., Barrelet, E., Bebek, C., ...
Wide-field surveys from the SNAP mission (2002)
Kim, A.G., Akerlof, C.W., Aldering, G., Amanullah, R., Astier, P., Barrelet, E., ...
Detection of Cosmic Shear with the HST Survey Strip (2001)
Rhodes, J., Refregier, A., Groth, E. J.
Weak lensing by large-scale structure provides a unique method to directly measure matter fluctuations in the universe, and has recently been detected from the ground. Here, we report the first...
The Power Spectrum of the Sunyaev-Zel'dovich Effect (1999)
Refregier, A., Komatsu, E., Spergel, D. N.
(Abridged) The hot gas in the IGM produces anisotropies in the Cosmic Microwave Background (CMB) through the thermal Sunyaev-Zel'dovich (SZ) effect. The SZ effect is a powerful probe of large-scale...
Overview of Secondary Anisotropies of the CMB (1999)
While the major contribution to the Cosmic Microwave Background (CMB) anisotropies are the sought-after primordial fluctuations produced at the surface of last scattering, other effects produce...
Weak Lensing by Large-Scale Structure with the FIRST Radio Survey (1998)
Refregier, A., Brown, S. T., Kamionkowski, M., Helfand, D. J., Cress, C. M., Babul, A., ...
The coherent image distortions induced by weak gravitational lensing can be used to measure the power spectrum of density inhomogeneities in the universe. We present our on-going effort to detect...
Extragalactic Foregrounds of the Cosmic Microwave Background: Prospects for the MAP Mission (1998)
Refregier, A., Spergel, D. N., Herbig, T.
(Abridged) While the major contribution to the Cosmic Microwave Background (CMB) anisotropies are the sought-after primordial fluctuations produced at the surface of last scattering, other effects...
Effect of Correlated Noise on Source Shape Parameters and Weak Lensing Measurements (1998)
The measurement of shape parameters of sources in astronomical images is usually performed by assuming that the underlying noise is uncorrelated. Spatial noise correlation is however present in...
Refregier, A., Helfand, D. J., McMahon, R. G.
Recent ROSAT surveys suggest that galaxies constitute the new class of X-ray sources required to explain the full phenomenology of the cosmic X-Ray Background (XRB). To test this hypothesis, we...
Isolating the Foreground of the X-Ray Background (1995)
Refregier, A., Helfand, D. J., McMahon, R. G.
The foreground component of the X-ray Background (XRB) can be studied by cross-correlating its intensity with galaxy catalogs. We computed the two-point cross-correlation function $W_{xg}$ between 67...