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| The effects of superhigh magnetic fields on the equations of state of neutron stars | |
Gao, Z. F.1,2; Wang, N.1; Xu, Y.3 ; Shan, H.1; Li, X. -D.4
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| 2015-11-01 | |
| Source Publication | ASTRONOMISCHE NACHRICHTEN
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| Volume | 336Issue:8-9Pages:866-870 |
| Abstract | By introducing Dirac's -function in superhigh magnetic fields, we deduce a general formula for the pressure of degenerate and relativistic electrons, P-e, which is suitable for superhigh magnetic fields, discuss the quantization of Landau levels of electrons, and consider the quantum electrodynamic(QED) effects on the equations of states (EOSs) for different matter systems. The main conclusions are as follows: the stronger the magnetic field strength, the higher the electron pressure becomes; compared with a common radio pulsar, a magnetar could be a more compact oblate spheroid-like deformed neutron star due to the anisotropic total pressure; and an increase in the maximum mass of a magnetar is expected because of the positive contribution of the magnetic field energy to the EoS of the star. Since this is an original work in which some uncertainties could exist, modifications and improvements of our theory should be considered in our future studies. ((c) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| Keyword | Equation Of State Dense Matter Magnetic Fields Stars: Neutron |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1002/asna.201512239 |
| WOS Keyword | IRON-GROUP NUCLEI ; ELECTRON-CAPTURE ; NI-56 ; DECAY ; RAY |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000364913700027 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://libir.pmo.ac.cn/handle/332002/16071 |
| Collection | 紫金山天文台青海观测站 |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Changchun Observ, Changchun 130117, Peoples R China 4.Nanjing Univ, Shchool Astron & Space Sci, Nanjing 210046, Jiangshu, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, Z. F.,Wang, N.,Xu, Y.,et al. The effects of superhigh magnetic fields on the equations of state of neutron stars[J]. ASTRONOMISCHE NACHRICHTEN,2015,336(8-9):866-870. |
| APA | Gao, Z. F.,Wang, N.,Xu, Y.,Shan, H.,&Li, X. -D..(2015).The effects of superhigh magnetic fields on the equations of state of neutron stars.ASTRONOMISCHE NACHRICHTEN,336(8-9),866-870. |
| MLA | Gao, Z. F.,et al."The effects of superhigh magnetic fields on the equations of state of neutron stars".ASTRONOMISCHE NACHRICHTEN 336.8-9(2015):866-870. |
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