All-sky, narrowband, gravitational-wave radiometry with folded data

被引：10

作者：

Thrane, Eric ^{[1
]}

Mitra, Sanjit ^{[2
]}

Christensen, Nelson ^{[3
]}

Mandic, Vuk ^{[4
]}

Ain, Anirban ^{[2
]}

机构：

[1] Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia

[2] Pune Univ Campus, Pune 411007, Maharashtra, India

[3] Carleton Coll, Phys & Astron, Northfield, MN 55057 USA

[4] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 12期

基金：

美国国家科学基金会;

关键词：

MAGNETICALLY CONFINED MOUNTAIN; RADIATION;

D O I：

10.1103/PhysRevD.91.124012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Gravitational-wave radiometry is a powerful tool by which weak signals with unknown signal morphologies are recovered through a process of cross correlation. Radiometry has been used, e.g., to search for persistent signals from known neutron stars such as Scorpius X-1. In this paper, we demonstrate how a more ambitious search-for persistent signals from unknown neutron stars-can be efficiently carried out using folded data, in which an entire similar to year-long observing run is represented as a single sidereal day. The all-sky, narrowband radiometer search described here will provide a computationally tractable means to uncover gravitational-wave signals from unknown, nearby neutron stars in binary systems, which can have modulation depths of similar to 0.1-2 Hz. It will simultaneously provide a sensitive search algorithm for other persistent, narrowband signals from unexpected sources.

引用

页数：6

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