Gravitational scattering of photons off cosmic strings

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题名:	Gravitational scattering of photons off cosmic strings
作者:	瞿怡仁;Chu, Yi-Zen;Vachaspati, Tanmay
贡献者:	理學院物理學系
关键词:	Constants;Cosmology;Deviation;Distortion;Gravitation;Photons;Spectra;Strings
日期:	2013-04-10
上传时间:	2026-04-23 12:00:06 (UTC+8)
出版者:	United States: American Physical Society
摘要:	摘要： Photons can gravitationally scatter off a cosmic string loop and gain or lose energy. We consider the spectral distortion induced by cosmic string loops placed in an ambient thermal bath of photons. The fractional deviation from a thermal spectrum caused by cosmic strings is estimated to scale as (G sub(N) mu ) super(2)z super(2), where G sub(N) is Newton's constant, mu is the string tension, and z is the cosmological redshift after which spectral distortions can survive. This effect is large enough to potentially be of observational interest. 出版者： United States: American Physical Society 出版日期： 2013-04-10 出處： Physical review. D, Particles, fields, gravitation, and cosmology, 2013-04, Vol.87 (8), Article 083512 識別號： ISSN: 1550-7998 識別號： EISSN: 1550-2368 識別號： DOI: 10.1103/PhysRevD.87.083512
显示于类别:	[物理學系] 期刊論文

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