Overview

Wilkinson Microwave Anisotropy Probe


'Wilkinson Microwave Anisotropy Probe' can also refer to...

Wilkinson Microwave Anisotropy Probe

Wilkinson Microwave Anisotropy Probe

Wilkinson Microwave Anisotropy Probe

Results from the Wilkinson Microwave Anisotropy Probe

Foreground maps in Wilkinson Microwave Anisotropy Probe frequency bands

An anomalous Wilkinson Microwave Anisotropy Probe signal in the ecliptic plane

Wilkinson Microwave Anisotropy Probe 5-yr constraints on f nl with wavelets

Directionality in the Wilkinson Microwave Anisotropy Probe polarization data

Cosmic microwave background signal in Wilkinson Microwave Anisotropy Probe three-year data with fastica

A low cosmic microwave background variance in the Wilkinson Microwave Anisotropy Probe data

No Higher Criticism of the Bianchi-corrected Wilkinson Microwave Anisotropy Probe data

A determination of the spectra of Galactic components observed by the Wilkinson Microwave Anisotropy Probe

Non-Gaussian signatures in the temperature fluctuation observed by the Wilkinson Microwave Anisotropy Probe

The non-Gaussian cold spot in Wilkinson  Microwave  Anisotropy  Probe: significance, morphology and foreground contribution

Galactic foreground contributions to the 5-year Wilkinson Microwave Anisotropy Probe maps

Testing the dark matter annihilation model for the Wilkinson Microwave Anisotropy Probe haze

Multiresolution internal template cleaning: an application to the Wilkinson Microwave Anisotropy Probe 7-yr polarization data

Wilkinson Microwave Anisotropy Probe 7-yr constraints on f NL with a fast wavelet estimator

The Sunyaev–Zel'dovich effect in Wilkinson Microwave Anisotropy Probe data

 

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A NASA satellite launched in 2001 June to study small fluctuations in the cosmic microwave background left over from the Big Bang, in succession to the Cosmic Background Explorer. It was positioned at the L2 Lagrangian point of the Earth's orbit, 1.5 million km from Earth in the direction opposite the Sun, from where it could observe the Universe without interference from the Sun, Earth, or Moon. WMAP determined the age of the Universe to be 13.73 billion years to within 1% (0.12 billion years); found that the curvature of spacetime is within 1% of flat (Euclidean); determined that ordinary atoms (baryons) make up 4.6% of the Universe, to within 0.1%; dark matter (not made up of atoms) makes up 23.3%, to within 1.3%; and that dark energy makes up the remaining 72.1%, to within 1.5%. WMAP was named in honour of the American cosmologist David Todd Wilkinson (1935–2002). It ceased observations in 2010 August.

http://wmap.gsfc.nasa.gov/ Official mission website.

Subjects: Astronomy and Astrophysics.


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