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A measurement of the cosmic microwave background gravitational lensing potential from 100 square degrees of SPTPOL data
- Publication Year :
- 2015
- Publisher :
- American Astronomical Society, 2015.
-
Abstract
- We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope (SPT). The observations used in this work cover 100 deg$^2$ of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between $100< L<br />Comment: 16 pages, 8 figures
- Subjects :
- Physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
010308 nuclear & particles physics
media_common.quotation_subject
Cosmic microwave background
Astrophysics::Instrumentation and Methods for Astrophysics
Spectral density
Estimator
Quadratic estimator
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Polarization (waves)
01 natural sciences
Gravitational lens
South Pole Telescope
Space and Planetary Science
Sky
0103 physical sciences
High Energy Physics::Experiment
010303 astronomy & astrophysics
media_common
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5af3c580f9e2a076cc6eeb9d59dc1180