Radio broadcasts from superconducting strings

被引：42

作者：

Cai, Yi-Fu ^{[1
,2
]}

Sabancilar, Eray ^{[1
]}

Steer, Daniele A. ^{[3
]}

Vachaspati, Tanmay ^{[1
]}

机构：

[1] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

[2] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[3] Univ Paris 07, CNRS, UMR 7164, Observ Paris,APC,CEA, F-75205 Paris 13, France

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 04期

基金：

美国国家科学基金会;

关键词：

MICROWAVE BACKGROUND SPECTRUM; ELECTROMAGNETIC-RADIATION; COSMIC STRINGS; EVOLUTION; CUSPLESS; BURSTS; KINKY; PROBE;

D O I：

10.1103/PhysRevD.86.043521

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Superconducting cosmic strings can give transient electromagnetic signatures that we argue are most evident at radio frequencies. We investigate the three different kinds of radio bursts from cusps, kinks, and kink-kink collisions on superconducting strings. We find that the event rate is dominated by kink bursts in a range of parameters that are of observational interest, and can be quite high (several a day at 1 Jy flux) for a canonical set of parameters. In the absence of events, the search for radio transients can place stringent constraints on superconducting cosmic strings.

引用

页数：11

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