دورية أكاديمية
Gravitational waves from pulsars in the context of magnetic ellipticity
| العنوان: | Gravitational waves from pulsars in the context of magnetic ellipticity |
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| المؤلفون: | José C. N. de Araujo, Jaziel G. Coelho, Cesar A. Costa |
| المصدر: | European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-48 (2017) |
| بيانات النشر: | SpringerOpen, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Abstract In one of our previous articles we have considered the role of a time dependent magnetic ellipticity on the pulsars’ braking indices and on the putative gravitational waves these objects can emit. Since only nine of more than 2000 known pulsars have accurately measured braking indices, it is of interest to extend this study to all known pulsars, in particular as regards gravitational wave generation. To do so, as shown in our previous article, we need to know some pulsars’ observable quantities such as: periods and their time derivatives, and estimated distances to the Earth. Moreover, we also need to know the pulsars’ masses and radii, for which we are adopting current fiducial values. Our results show that the gravitational wave amplitude is at best $$h \sim 10^{-28}$$ h ∼ 10 - 28 . This leads to a pessimistic prospect for the detection of gravitational waves generated by these pulsars, even for Advanced LIGO and Advanced Virgo, and the planned Einstein Telescope, if the ellipticity has a magnetic origin. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1434-6044 1434-6052 |
| Relation: | http://link.springer.com/article/10.1140/epjc/s10052-017-4925-3; https://doaj.org/toc/1434-6044; https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-017-4925-3 |
| URL الوصول: | https://doaj.org/article/f7d6976237384fc5ac90d4c5715f2cf9 |
| رقم الأكسشن: | edsdoj.f7d6976237384fc5ac90d4c5715f2cf9 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 14346044 14346052 |
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| DOI: | 10.1140/epjc/s10052-017-4925-3 |