Gravitational lensing effect on cosmic microwave background anisotropies: A power spectrum approach

被引：282
作者：
Seljak, U [1 ]
机构：
[1] MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA
来源：
ASTROPHYSICAL JOURNAL | 1996年 / 463卷 / 01期
关键词：
cosmic microwave background; gravitational lensing; large-scale structure of universe;
D O I：
10.1086/177218
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The effect of gravitational lensing on cosmic microwave background (CMB) anisotropies is investigated using the power spectrum approach. The lensing effect can be calculated in any cosmological model by specifying the evolution of gravitational potential. Previous work on this subject is generalized to a nonflat universe and to a nonlinear evolution regime. Gravitational lensing cannot change the gross distribution of CMB anisotropies, but it may redistribute the power and smooth the sharp features in the CMB power spectrum. The magnitude of this effect is estimated using observational constraints on the power spectrum of gravitational potential from galaxy and cluster surveys and also using the limits on correlated ellipticities in distant galaxies. For realistic CMB power spectra the effect on CMB multipole moments is less than a few percent on degree angular scales but gradually increases toward smaller scales. On arcminute angular scales the acoustic oscillation peaks may be partially or completely smoothed out because of the gravitational lensing.
引用
收藏
页码：1 / 7
页数：7
相关论文
共 50 条
[21]   Reconstruction of the cosmic microwave background lensing for Planck [J].
Perotto, L. ;
Bobin, J. ;
Plaszczynski, S. ;
Starck, J. -L. ;
Lavabre, A. .
ASTRONOMY & ASTROPHYSICS, 2010, 519
[22]   The effect of lensing on the large-scale cosmic microwave background anisotropy [J].
Shanks, T. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 376 (01) :173-179
[23]   Gravitational magnification of the cosmic microwave background [J].
Metcalf, RB ;
Silk, J .
ASTROPHYSICAL JOURNAL, 1997, 489 (01) :1-6
[24]   Lensing effect on the relative orientation between the cosmic microwave background ellipticities and the distant galaxies [J].
Van Waerbeke, L ;
Bernardeau, F ;
Benabed, K .
ASTROPHYSICAL JOURNAL, 2000, 540 (01) :14-19
[25]   Effects of weak lensing on the topology of cosmic microwave background maps [J].
Schmalzing, J ;
Takada, M ;
Futamase, T .
ASTROPHYSICAL JOURNAL, 2000, 544 (02) :L83-L86
[26]   Lensing-induced cluster signatures in the cosmic microwave background [J].
Seljak, U ;
Zaldarriaga, M .
ASTROPHYSICAL JOURNAL, 2000, 538 (01) :57-64
[27]   Search for cosmic strings in cosmic microwave background anisotropies [J].
Jeong, E ;
Smoot, GF .
ASTROPHYSICAL JOURNAL, 2005, 624 (01) :21-27
[28]   Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data [J].
Aguilar Faundez, M. ;
Arnold, K. ;
Baccigalupi, C. ;
Barron, D. ;
Beck, D. ;
Beckman, S. ;
Bianchini, F. ;
Carron, J. ;
Cheung, K. ;
Chinone, Y. ;
El Bouhargani, H. ;
Elleflot, T. ;
Errard, J. ;
Fabbian, G. ;
Feng, C. ;
Fujino, T. ;
Goeckner-Wald, N. ;
Hamada, T. ;
Hasegawa, M. ;
Hazumi, M. ;
Hill, C. A. ;
Hirose, H. ;
Jeong, O. ;
Katayama, N. ;
Keating, B. ;
Kikuchi, S. ;
Kusaka, A. ;
Lee, A. T. ;
Leon, D. ;
Linder, E. ;
Lowry, L. N. ;
Matsuda, F. ;
Matsumura, T. ;
Minami, Y. ;
Navaroli, M. ;
Nishino, H. ;
Pham, A. T. P. ;
Poletti, D. ;
Puglisi, G. ;
Reichardt, C. L. ;
Segawa, Y. ;
Sherwin, B. D. ;
Silva-Feaver, M. ;
Siritanasak, P. ;
Stompor, R. ;
Suzuki, A. ;
Tajima, O. ;
Takatori, S. ;
Tanabe, D. ;
Teply, G. P. .
ASTROPHYSICAL JOURNAL, 2020, 893 (01)
[29]   A line-of-sight integration approach to cosmic microwave background anisotropies [J].
Seljak, U ;
Zaldarriaga, M .
ASTROPHYSICAL JOURNAL, 1996, 469 (02) :437-444
[30]   Gravitational lensing effect of galaxy clusters and anisotropy of cosmic background radiation [J].
Feng, LL ;
Xiang, SP ;
Liu, JM .
CHINESE ASTRONOMY AND ASTROPHYSICS, 1998, 22 (03) :247-256
12345