Cosmic Microwave Background Maps Lensed by Cosmological Structures: Simulations and Statistical Analysis
| العنوان: | Cosmic Microwave Background Maps Lensed by Cosmological Structures: Simulations and Statistical Analysis |
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| المؤلفون: | L. Anton, P. Cerda‐Duran, V. Quilis, D. Saez |
| المصدر: | The Astrophysical Journal. 628:1-13 |
| بيانات النشر: | American Astronomical Society, 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Physics, Photon, media_common.quotation_subject, Cosmic microwave background, Astronomy and Astrophysics, Astrophysics, Universe, law.invention, Lens (optics), Nonlinear system, Space and Planetary Science, law, Particle Mesh, Range (statistics), Statistical analysis, Statistical physics, media_common |
| الوصف: | A method for ray-tracing through n-body simulations has been recently proposed. It is based on a periodic universe covered by simulation boxes. Photons move along appropriate directions to avoid periodicity effects. Here, an improved version of this method is applied to simulate lensed CMB maps and maps of lens deformations. Particle mesh n-body simulations with appropriate boxes and resolutions are used to evolve the nonlinear inhomogeneities until present time. The resulting maps are statistically analyzed to look for deviations from Gaussianity. These deviations are measured –for the first time– using correlations for configurations of n directions (n ≤ 6). A wide range of angular scales are considered. Some interesting prospects are outlined. |
| تدمد: | 1538-4357 0004-637X |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::9b82e6b3fbb79e89b5e74209be97c949Test https://doi.org/10.1086/431172Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi...........9b82e6b3fbb79e89b5e74209be97c949 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15384357 0004637X |
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