Gravitational backreaction near cosmic string kinks and cusps
Gravitational backreaction near cosmic string kinks and cusps
复制标题
宇宙弦扭结和尖点附近的引力反作用
DOI：
10.1103/physrevd.98.123507
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发表时间：
2018
影响因子：
5
通讯作者：
Jeremy M. Wachter
中科院分区：
文献类型：
--
作者：
J. Blanco;K. Olum;Jeremy M. Wachter
我们发现了宇宙弦在拐点和尖点附近的引力反作用力的领先级效应。在一个扭结附近，效应发散成到扭结距离的倒数立方根，并在与世界表横向的方向上起作用。随着时间的推移，扭结逐渐消失，但只有相当接近扭结的区域受到显著影响。在尖端附近，该效应与距离尖端成反比线性发散，并与尖端运动的方向相反。这导致弦能量的部分损失，随着最接近尖端的距离呈对数发散。
We find the leading-order effect of gravitational back-reaction on cosmic strings for points near kinks and cusps. Near a kink, the effect diverges as the inverse cube root of the distance to the kink, and acts in a direction transverse to the worldsheet. Over time the kink is rounded off, but only regions fairly close to the kink are significantly affected. Near cusps, the effect diverges inverse linearly with the distance to the cusp, and acts against the direction of the cusp motion. This results in a fractional loss of string energy that diverges logarithmically with the distance of closest approach to the cusp.
影响因子：
5
作者：
D. Chernoff;'. Flanagan;B. Wardell
通讯作者：
D. Chernoff;'. Flanagan;B. Wardell
DOI：
10.3847/1538-4357/aabd3b
发表时间：
2018-01
期刊：
The Astrophysical Journal
影响因子：
--
作者：
Z. Arzoumanian;P. Baker;A. Brazier;S. Burke-Spolaor;S. Chamberlin;S. Chatterjee;B. Christy;J. Cordes;N. Cornish;F. Crawford;H. Cromartie;K. Crowter;M. DeCesar;P. Demorest;T. Dolch;J. Ellis;R. Ferdman;E. Ferrara;W. Folkner;E. Fonseca;N. Garver-Daniels;P. Gentile;R. Haas;J. Hazboun;E. Huerta;K. Islo;Glenn Jones;Megan L. Jones;D. Kaplan;V. Kaspi;M. Lam;T. Lazio;L. Levin;A. Lommen;D. Lorimer;J. Luo;R. Lynch;D. Madison;M. Mclaughlin;S. McWilliams;C. Mingarelli;C. Ng;D. Nice;R. Park;T. Pennucci;N. Pol;S. Ransom;P. Ray;Alexander Rasskazov;X. Siemens;J. Simon;R. Spiewak;I. Stairs;D. Stinebring;K. Stovall;J. Swiggum;S. Taylor;M. Vallisneri;R. V. Haasteren;S. Vigeland;Weiwei Zhu
通讯作者：
Z. Arzoumanian;P. Baker;A. Brazier;S. Burke-Spolaor;S. Chamberlin;S. Chatterjee;B. Christy;J. Cordes;N. Cornish;F. Crawford;H. Cromartie;K. Crowter;M. DeCesar;P. Demorest;T. Dolch;J. Ellis;R. Ferdman;E. Ferrara;W. Folkner;E. Fonseca;N. Garver-Daniels;P. Gentile;R. Haas;J. Hazboun;E. Huerta;K. Islo;Glenn Jones;Megan L. Jones;D. Kaplan;V. Kaspi;M. Lam;T. Lazio;L. Levin;A. Lommen;D. Lorimer;J. Luo;R. Lynch;D. Madison;M. Mclaughlin;S. McWilliams;C. Mingarelli;C. Ng;D. Nice;R. Park;T. Pennucci;N. Pol;S. Ransom;P. Ray;Alexander Rasskazov;X. Siemens;J. Simon;R. Spiewak;I. Stairs;D. Stinebring;K. Stovall;J. Swiggum;S. Taylor;M. Vallisneri;R. V. Haasteren;S. Vigeland;Weiwei Zhu