کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1847777 | 1528105 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lensed Cosmic Microwave Background Constraints on Post-General Relativity Parameters
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Lensed Cosmic Microwave Background Constraints on Post-General Relativity Parameters Lensed Cosmic Microwave Background Constraints on Post-General Relativity Parameters](/preview/png/1847777.png)
چکیده انگلیسی
In this contribution we describe the constraints on departures from general relativity (GR) at cosmological length scales due to cosmic microwave background (CMB). For a more detailed discussion, see Phys. Rev. D 79, 101301 (R) (2009).The departure from GR is measured by the ratio, parameterized as , between the gravitational potentials conventionally appearing in the geodesic equation and the Poisson equation. Current CMB data indicate at the 2σ confidence level, while S remains unconstrained. The departure from GR affects the lensing conversion of E-mode into B-mode polarization. Hence, the lensing measurements from a future CMBpol experiment should be able to improve the constraints to for a fiducial model and independent of S.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Proceedings Supplements - Volume 194, October 2009, Pages 320-325
Journal: Nuclear Physics B - Proceedings Supplements - Volume 194, October 2009, Pages 320-325