A5038194903- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Cosmology and Gravitation Theories
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Dark Matter and Cosmic Phenomena
- Radio Astronomy Observations and Technology
- Scientific Research and Discoveries
- Astrophysical Phenomena and Observations
- Calibration and Measurement Techniques
- Adaptive optics and wavefront sensing
- History and Developments in Astronomy
- Superconducting and THz Device Technology
- Spectroscopy and Laser Applications
- Geophysics and Gravity Measurements
- CCD and CMOS Imaging Sensors
- Relativity and Gravitational Theory
- Atmospheric Ozone and Climate
- Radioactive Decay and Measurement Techniques
- Scientific Measurement and Uncertainty Evaluation
- Solar and Space Plasma Dynamics
- Particle physics theoretical and experimental studies
Institut d'Astrophysique Spatiale
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Université Paris-Saclay
2007-2025
Université Paris-Sud
2011-2020
Institut Universitaire de France
2012-2017
Agenzia Spaziale Italiana
2012
Aalto University
2012
European Space Research Institute
2012
Universität Hamburg
2008
University of Arizona
2001-2006
We present results based on full-mission Planck observations of temperature and polarization anisotropies the CMB. These data are consistent with six-parameter inflationary LCDM cosmology. From lensing data, for this cosmology we find a Hubble constant, H0= (67.8 +/- 0.9) km/s/Mpc, matter density parameter Omega_m = 0.308 0.012 scalar spectral index n_s 0.968 0.006. (We quote 68% errors measured parameters 95% limits other parameters.) Combined LFI measurements lead to reionization optical...
We present the first results based on Planck measurements of CMB temperature and lensing-potential power spectra. The spectra at high multipoles are extremely well described by standard spatially-flat six-parameter LCDM cosmology. In this model data determine cosmological parameters to precision. find a low value Hubble constant, H0=67.3+/-1.2 km/s/Mpc matter density parameter, Omega_m=0.315+/-0.017 (+/-1 sigma errors) in excellent agreement with constraints from baryon acoustic oscillation...
The Multiband Imaging Photometer for Spitzer (MIPS) provides long-wavelength capability the mission in imaging bands at 24, 70, and 160 μm measurements of spectral energy distributions between 52 100 a resolution about 7%. By using true detector arrays each band, it both critical sampling point-spread function relatively large fields view, allowing substantial advances sensitivity, angular resolution, efficiency areal coverage compared with previous space far-infrared capabilities. 24 array...
The ESA's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14 May 2009 has been scanning microwave submillimetre sky continuously since 12 August 2009. This paper gives an overview of mission performance, processing, analysis, characteristics data, scientific results, science data products papers in release. include maps CMB diffuse extragalactic foregrounds, a catalogue compact Galactic sources, list sources detected through SZ effect....
We present the implications for cosmic inflation of Planck measurements microwave background (CMB) anisotropies in both temperature and polarization based on full survey, which includes more than twice integration time nominal survey used 2013 release papers. The mission data a first large angular scales measure spectral index curvature perturbations to be ns = 0.968 ± 0.006 tightly constrain its scale dependence dns/ dlnk −0.003 0.007 when combined with lensing likelihood. When high-ℓ are...
This paper characterizes the effective beams,the beam window functions and associated errors for Planck HFI detectors. The is angular response including effect of optics,detectors,data processing scan strategy. function representation this in harmonic domain which required to recover an unbiased measurement CMB power spectrum. a scanning instrument its beams are convolution of: (a) optical telescope feeds;(b)the time-ordered data deconvolution bolometric electronic time response; (c) merging...
We present the deepest 100 to 500 μm far-infrared observations obtained with Herschel Space Observatory as part of GOODS-Herschel key program, and examine infrared (IR) 3–500 spectral energy distributions (SEDs) galaxies at 0 < z 2.5, supplemented by a local reference sample from IRAS, ISO, Spitzer, AKARI data. determine projected star formation densities their radio mid-IR continuum sizes.
The European Space Agency's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14~May 2009 scanned microwave submillimetre sky continuously between 12~August 23~October 2013. In February~2015, ESA Collaboration released second set of cosmology products based on data from entire mission, including both temperature polarization, along with a scientific technical papers web-based explanatory supplement. This paper gives an overview main...
We report the results of a joint analysis data from BICEP2/Keck Array and Planck. BICEP2 Keck have observed same approximately 400 deg$^2$ patch sky centered on RA 0h, Dec. $-57.5\deg$. The combined maps reach depth 57 nK deg in Stokes $Q$ $U$ band at 150 GHz. Planck has full polarization seven frequencies 30 to 353 GHz, but much less deeply any given region (1.2 $\mu$K 143 GHz). detect 150$\times$353 cross-correlation $B$-modes high significance. fit single- cross-frequency power spectra...
We analyze a sample of ~2600 MIPS/Spitzer 24mic sources brighter than ~80muJy and located in the Chandra Deep Field South to characterize evolution comoving infrared (IR) energy density Universe up z~1. Using published ancillary optical data we first obtain nearly complete redshift determination for objects associated with R<24 counterparts at z<1. find that population 0.5 10^11 L_IR) are responsible 70+/-15% this Taking into account contribution UV luminosity evolving as (1+z)^~2.5,...
This paper presents the Planck 2015 likelihoods, statistical descriptions of 2-point correlations CMB data, using hybrid approach employed previously: pixel-based at $\ell<30$ and a Gaussian approximation to distribution spectra higher $\ell$. The main improvements are use more better processed data polarization detailed foreground instrumental models, allowing further checks enhanced immunity systematics. Progress in modelling enables larger sky fraction. Improvements processing models...
We study the implications of Planck data for models dark energy (DE) and modified gravity (MG), beyond cosmological constant scenario. start with cases where DE only directly affects background evolution, considering Taylor expansions equation state, principal component analysis parameterizations related to potential a minimally coupled scalar field. When estimating density at early times, we significantly improve present constraints. then move general or MG perturbations that encompass both...
We present cluster counts and corresponding cosmological constraints from the Planck full mission data set. Our catalogue consists of 439 clusters detected via their Sunyaev-Zeldovich (SZ) signal down to a signal-to-noise ratio 6, is more than factor 2 larger 2013 cosmology sample. The are consistent with those yield compatible under same modelling assumptions. Taking advantage catalogue, we extend our analysis two-dimensional distribution in redshift signal-to-noise. use mass estimates two...
The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable template-fitting (KSW), binned, and modal, we obtain consistent values for the local, equilateral, orthogonal amplitudes, quoting as our final result fNL^local= 2.7+/-5.8, fNL^equil= -42+/-75, fNL^ortho= -25+\-39 (68% CL statistical). NG is detected in data; using skew-C_l statistics find a nonzero from...
The Planck full mission cosmic microwave background(CMB) temperature and E-mode polarization maps are analysed to obtain constraints on primordial non-Gaussianity(NG). Using three classes of optimal bispectrum estimators - separable template-fitting (KSW), binned, modal we consistent values for the local, equilateral, orthogonal amplitudes, quoting as our final result from alone fNL^local=2.5+\-5.7, fNL^equil=-16+\-70 fNL^ortho=-34+\-33(68%CL). Combining data fNL^local=0.8+\-5.0,...
This paper presents an all-sky model of dust emission from the Planck 857, 545 and 353 GHz, IRAS 100 micron data. Using a modified black-body fit to data we present maps optical depth, temperature, spectral index over 353-3000 GHz range. is tight representation at 5 arc min. It shows variations order 30 % compared with widely-used Finkbeiner, Davis, Schlegel. The allow us estimate temperature uniformly whole sky, providing improved depth previous model, especially in high-contrast molecular...
Aims.We quantify the contributions of 24 μm galaxies to Far-Infrared (FIR) Background at 70 and 160 μm. We provide new estimates Cosmic Infrared (CIB), compare it with Optical (COB).