Relativistic soliton collisions of axion type dark matter

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• 作者：David Castañ ; eda Valle ^{casvada@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Eckehard W. Mielke ; ^{ekke@xanum.uam.mx" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Dark matter ; Universal axion ; Solitons ; Dark matter halos ; Galaxy clusters
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 July 2016
• 年：2016
• 卷：758
• 期：Complete
• 页码：93-97
• 全文大小：651 K

文摘

Axion-like scalar fields and the Lane–Emden (LE) truncation of their periodic potential are analyzed as a toy model of dark matter halos. Then, collisions of the well-known kinks in (1+1$1+1$) spacetime dimensions can be mapped to those of localized lumps of the LE equation. Here, we generalize this mapping to (2+1$2+1$)D or even (3+1$3+1$)D and discuss a challenging intrinsic inelastic effect during relativistic soliton collisions.