Pesponse of the Neutron Star Properties to the Equation of State at Low Density

  • Using the RMF theory to describe the neutron liquid region in the neutron star and the Fermi gas model or FMT, BPS,and BBP model to describe the crust of the neutron star (referred as Fermi gas+RMF and RMF* respectively),the properties of the neutron star are calculated and compared with those from the RMF theory. Although the EOS at low density has negligible influence on the maximum mass of the neutron star, and its corresponding central density, energy density, and pressure, it changes the mass-radius relationship of neutron stars considerably. The differences of the neutron star radius corresponding to maximum mass between the RMF theory and RMF* calculations are 0.23-0.33 km.
  • 加载中
  • [1] .Hewish A,Bell S J,Pikington J D H et al.Nature,1968,217:7092.Pacini F.Nature,1967,216:5673.Oppenheimer J R,Volkoff G M.Phys.Rev.,1939,55:3744.Tolman R C.Phys.Rev.,1939,55:3645.Walecka J D.Ann.Phys.,1974,83:4916.Ring P.Prog.Part.Nucl.Phys.,1996,37:1937.MENG J.Nucl.Phys.,1998,A635:38.MENG J,RING P.Phys.Rev.Lett.,1996,77:39639.MENG J,RING P.Phys.Rev.Lett.,1998,80:460; MENG J,TanihataI,Yamaji S.Phys.Lett.,1998,B419:1;MENG J,TokiH,ZENG J Y etal.Phys.Rev.,2002,C65:041302;MENG J,ZHOU S G,Tanihata I.Phys.Lett.,2002,B532:20910.Madokoro H,MENG J,Matsuzaki M et al.Phys.Rev.,2000,C62:06130111.Lee Suk-Joon,Fink J,Balantekin A B et al.Phys.Rev.Lett.,1986,57:291612.Lalazissis G A,Konig J,Ring P.Phys.Rev.,1997,C55:54013.SharmaM M,Nagarajan M A,RING P.Phys.Lett.,1993,B312:37714.Sugahara Y,Toki H.Nucl.Phys.,1994,A579:55715.Typel S,WolterH H.Nucl.Phys.,1999,A656:33116.Nik-ic' T,Vretenar D,Finelli P et al.Phys.Rev.,2002,C66:02430617.LONGW H,MENG J,Giai N V et al.Phys.Rev.,2004,C69:03431918.Glendenning N K.Compact Stars.New York:Springer-Verlag,1997;Glendenning N K,Schaffner-Bielich J.Phys.Rev.Lett.,1998,81:4564;Glendenning N K,Schaffner-Bielich J.Phys.Rev.,1999,C60:02580319.Kaplan D B,Nelson A E.Phys.Lett.,1986,B175:5720.Fujii H,Maruyama T,Muto T et al.Nucl.Phys.,1996,A597:64521.Pons J A,Reddy S,Ellis P J et al.Phys.Rev.,2000,C62:03580322.NorsenT,Reddy S.Phys.Rev.,2001,C63:065804; Norsen T.Phys.Rev.,2002,C65:04580523.JIA H Y,SUN B X,MENG J et al.Chin.Phys.Lett.,2001,18:1571;JIA H Y,LU H F,MENG J.HighEnergy Phys.Nucl.Phys.,2002,26:1050;(in Chinese)(贾焕玉,吕洪凤,孟杰高能物理与核物理,2002,26:1050);SUN B X,JIA H Y,Meng J et al.Commum.Theor.Phys.,2001,36:446; JIA H Y,MENG J,ZHAO E G et al.High Energy Phys.Nucl.Phys.,2003,27:200(in Chinese)(贾焕玉,孟杰,赵恩广等高能物理与核物理,2003,27:200);24.LI J,BAN S F,JIA H Y et al.High Energy Phys.Nucl.Phys.,2004,28:140-147(in Chinese)(李俊,班淑芳,贾焕玉等.高能物理与核物理,2004,28:14-147)25.MENG J,BAN S F,LI J et al.Phys.Atom.Nucl.,2004,67:161926.BAN S F,LI J,ZHANG S Q et al.Phys.Rev.,2004,C69:04580527.Heiselberg H,Hjorth-JensenM.Phys.Rep.,2000,328:23728.Pandharipande V R,Pines D,Smith R A.Astrophys.J.,1976,208:55029.Feynman R P,Metropolis N,Teller E.Phys.Rev.,1949,75:156130.Baym G,Pethick C J,Sutherland P S.Astrophys.J.,1971,170:29931.Baym G,Bethe H A,Pethick C J.Nucl.Phys.,1971,A175:22532.Silbar R R,Reddy S.Am.J.Phys.,2004,72:892
  • 加载中

Get Citation
ZHU Zhao-Huan, BAN Shu-Fang, LI Jun and MENG Jie. Pesponse of the Neutron Star Properties to the Equation of State at Low Density[J]. Chinese Physics C, 2005, 29(6): 565-569.
ZHU Zhao-Huan, BAN Shu-Fang, LI Jun and MENG Jie. Pesponse of the Neutron Star Properties to the Equation of State at Low Density[J]. Chinese Physics C, 2005, 29(6): 565-569. shu
Milestone
Received: 2005-01-26
Revised: 1900-01-01
Article Metric

Article Views(3054)
PDF Downloads(552)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Pesponse of the Neutron Star Properties to the Equation of State at Low Density

    Corresponding author: MENG Jie,
  • School of Physics,Peking University,Beijing 1008712 Institute of Theoretical Physics,Chinese Academy of Science,Beijing 1000803 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000

Abstract: Using the RMF theory to describe the neutron liquid region in the neutron star and the Fermi gas model or FMT, BPS,and BBP model to describe the crust of the neutron star (referred as Fermi gas+RMF and RMF* respectively),the properties of the neutron star are calculated and compared with those from the RMF theory. Although the EOS at low density has negligible influence on the maximum mass of the neutron star, and its corresponding central density, energy density, and pressure, it changes the mass-radius relationship of neutron stars considerably. The differences of the neutron star radius corresponding to maximum mass between the RMF theory and RMF* calculations are 0.23-0.33 km.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return