How Massive Are the Superfluid Cores in the Crab and Vela Pulsars and Why Their Glitch-Events Are Accompanied with under and Overshootings?
How Massive Are the Superfluid Cores in the Crab and Vela Pulsars and Why Their Glitch-Events Are Accompanied with under and Overshootings?作者机构：IWR Universit?t Heidelberg Heidelberg Germany Applied Mathematics and Computational Science CEMSE Division KAUST Thuwal KSA
出 版 物：《Journal of Modern Physics》 (现代物理（英文）)
年 卷 期：2020年第11卷第3期
页 面：395-406页
学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学]
主 题：Relativity: Numerical General Black Hole Physics Magnetars Neutron Stars Pulsars Superfluidity Superconductivity Gluons Quarks Quantum Chromodynamics (QCD)
摘 要：The Crab and Vela are well-studied glitching pulsars and the data obtained so far should enable us to test the reliability of models of their internal structures. Very recently it was proposed that glitching pulsars are embedded in bimetric spacetime: their incompressible superfluid cores (SuSu-cores) are embedded in flat spacetime, whereas the ambient compressible and dissipative media are enclosed in Schwarzschild spacetime. In this letter we apply this model to the Crab and Vela pulsars and show that a newly born pulsar initially of and an embryonic SuSu-core of could evolve into a Crab-like pulsar after 1000 years and into a Vela-like pulsar 10,000 years later to finally fade away as an invisible dark energy object after roughly 10 Myr. Based thereon we infer that the Crab and the Vela pulsars should have SuSu-cores of and , respectively. Furthermore, the under- and overshootings phenomena observed to accompany the glitch events of the Vela pulsar are rather a common phenomenon of glitching pulsars that can be well-explained within the framework of bimetric spacetime.
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