Chinese Physics C > 2001, Vol. 25 > Issue(9): 877-883

Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 CCAST World Laboratory, Beijing 100080, China

Abstract
HTML
Reference
Related

PDF

Abstract：
By resolving Tolman Oppenheimer Volkoff equation based on a temperature, density, and isospin dependent nuclear equation of state of nuclear matter, we obtained the mass of neutron star as a function of central density, and the radius of neutron star was also investigated. It is found that both the maximum mass and the radius of neutron star strongly depend on the incompressibility, symmetry energy strength coefficient, and effective mass of nucleon. With the increment of the incompressibility and symmetry energy strength coefficient and the decrement of the nucleon effective mass, the maximum mass of nentron star increases. Meanwhile, the nuclear equation of state with large incompressibility, symmetry energy strength coefficient and nucleon effective mass results in relatively large neutron radius. These results imply that one can get some information about the nuclear equation of state by investigating the macroscopical variables of neutron stars such as mass and radius etc. The relationship of the mass and radius of neutron star is also investigated.

References

[1]

. Hofmann F ,Keil C M ,Lenske H .Nucl-th/0008038,2000 2. ZHANG Feng-Shou,GE Ling-Xiao.Nuclear Multifragmentation,Beijing:Science Press,1998(in Chinese)(张丰收,葛凌霄.原子核多重碎裂,北京:科学出版社,1998) 3. ZHANG Feng-Shou,CHEN Lie-Wen.High Energy Phys.and Nucl.Phys.,1999,23(12):1190(in Chinese)(张丰收,陈列文.高能物理与核物理,1999,23(12):1190)4. ZHAN GFeng-Shou,GE Ling-Xiao.High Energy Phys.and Nucl.Phys.,1992,16:666(in Chinese)(张丰收,葛凌霄.高能物理与核物理,1992,16:666) 5. ZHANG F S.Z .Phys.,1996,A356:163 6. ZHANG F S,CHEN L W .Chin.Phys.Lett.,2000(in press) 7. Tolman R C .Proc.Nat.Acad.Sci.USA ,1934,20:38. Oppenheimer J R ,Volkoff G M .Phys.Rev.,1939,55:374 9. Hewish A ,Bell S J,Pikington J D H et al.Nature,1968,217:709 10. Van Kerkwijk M .H .Astro.Astrophys.,1995,303:49711. Rhoades C ,Ruffini R .Phys.Rev.Lett.,1974,32:324 12. Chandrasekhar.An Introduction to the Study of Stellar Structure,Chicago:University of Chicago Press,1939 13. Wasserman I,Shapiro S L .Ap.J.,1983,265:103614. gelman H .The Lives of Neutron Stars.In:Kluwer,Dordrecht.NATO ASI Series,C450.10115. Link B ,Epstein R I,Lattimer J M .Phys.Rev.Lett.,2000,astr-ph/9909146(in press)

[1]	GAO Yuan,LI Xi-Guo,LI Yong-Qing. Effect of Pentaquark Θ⁺on the Equation of State of Nuclear Matter. Chinese Physics C, 2007, 31(1): 48-51.
[2]	CHEN Wei,LIU Liang-Gang. The Equation of State of Neutron Star Matter in Uniform Strong Magnetic Fields. Chinese Physics C, 2005, 29(2): 119-123.
[3]	ZUO Wei,CHEN Ji-Yan,LI Bao-An,LUO Pei-Yan,Lombardo U. Momentum and Density Dependence of Isospin Symmetry Potential in Asymmetric Nuclear Matter. Chinese Physics C, 2005, 29(9): 881-885.
[4]	LI Jun,BAN Shu-Fang,JIA Huan-Yu,SANG Jian-Ping,MENG Jie. Description of the Nuclear Matter and Neutron Star in Relativistic Mean Field Theory with Density-Dependent Interactions. Chinese Physics C, 2004, 28(2): 140-147.
[5]	ZUO Wei,Lombardo U,SHEN Cai-Wan,LIU Jian-Ye,LI Jun-Qing. Equation of State of Spin-Polarized Nuclear Matter. Chinese Physics C, 2004, 28(3): 284-289.
[6]	LI Zeng-Hua,ZUO Wei,LIU Jian-Ye,GUO Wen-Jun. Properties of Spin Polarized Isospin Asymmetric Nuclear Matter. Chinese Physics C, 2003, 27(9): 789-793.
[7]	ZUO Wei,Lombardo U,LIU Jian-Ye,LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential. Chinese Physics C, 2003, 27(7): 585-589.
[8]	ZUO Wei,LIU Jian-Ye,LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence. Chinese Physics C, 2003, 27(10): 888-891.
[9]	GUO Hua,LIU Bo,LI Xi-Guo,CHEN Yan-Jun. Kaon Condensation in Neutron Star Matter. Chinese Physics C, 2003, 27(2): 113-117.
[10]	LIU Bo,GUO Hua. Equation of State for the Thermal System of Nuclear Matter. Chinese Physics C, 2003, 27(7): 590-593.
[11]	LI Zeng-Hua,ZUO Wei,LIU Jian-Ye,GUO Wen-Jun. Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter. Chinese Physics C, 2003, 27(4): 332-336.
[12]	ZUO Wei,Lombardo U,LIU Jian-Ye,LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅳ) Single-Particle Potential and Effective Mass. Chinese Physics C, 2003, 27(5): 416-420.
[13]	ZUO Wei,Lombardo U,SHEN Cai-Wan,LIU Jian-Ye,LI Jun-Qing. Equation of State of Spin-Polarized Neutron Metier. Chinese Physics C, 2003, 27(11): 999-1004.
[14]	LI Zeng-Hua,LU Guang-Cheng,ZUO Wei. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅶ) Proton and Neutron¹S₀Superfluidity in Neutron Star Matter. Chinese Physics C, 2003, 27(12): 1084-1088.
[15]	ZUO Wei,U.Lombardo,LIU Jian-Ye,LI Zeng-Hua,LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended Brueckner-Hartree-Fock Approach (Ⅱ) Equation of State,Symmetry Energy and Three-Body Force Effects. Chinese Physics C, 2002, 26(12): 1238-1246.
[16]	SUN Bao-Xi,JIA Huan-Yu,MENG Jie,ZHAO En-Guang. Neutron Star in Relativistic Mean-field Approximation. Chinese Physics C, 2000, 24(S1): 69-72.
[17]	Zhang Fengshou,Chen Liewen. An Isospin-Dependent Nuclear Equation of State. Chinese Physics C, 1999, 23(12): 1190-1196.
[18]	LIU Qing-Jun,JIANG Yu-Zhen,WANG Shan,LIU Yi-Ming. Multi-Particle Azimuthal Correlations and the Nuclear Equation of State. Chinese Physics C, 1992, 16(9): 801-806.
[19]	ZHANG Dong,ZHANG Xiao-Ze,JIN Xing-Nan,SA Ben-Hao. EQUATION OF STATE OF HOT NUCLEI BEFORE BREAK-UP. Chinese Physics C, 1989, 13(8): 706-713.
[20]	SHEN QING-BIAO,TIAN YE,MA ZHONG-YU,ZHANG JING-SHANG,ZHUO YI-ZHONG. SEMI-MICROSCOPIC OPTICAL POTENTIAL CALCULATION USING NUCLEAR MATTER APPROACH II. ASYMMETRIC NUCLEAR MATTER. Chinese Physics C, 1982, 6(2): 185-197.

Access

Get Citation

LI Wen-Fei, ZHANG Feng-Shou and CHEN Lie-Wen. Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter[J]. Chinese Physics C, 2001, 25(9): 877-883.

LI Wen-Fei, ZHANG Feng-Shou and CHEN Lie-Wen. Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter[J]. Chinese Physics C, 2001, 25(9): 877-883. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-07-18
Revised: 1900-01-01

Article Metric

Article Views(5180)
PDF Downloads(667)
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

Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter

Corresponding author:LI Wen-Fei,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 CCAST World Laboratory, Beijing 100080, China

Received Date:2000-07-18

Accepted Date:1900-01-01

Available Online:2001-09-05

Abstract:By resolving Tolman Oppenheimer Volkoff equation based on a temperature, density, and isospin dependent nuclear equation of state of nuclear matter, we obtained the mass of neutron star as a function of central density, and the radius of neutron star was also investigated. It is found that both the maximum mass and the radius of neutron star strongly depend on the incompressibility, symmetry energy strength coefficient, and effective mass of nucleon. With the increment of the incompressibility and symmetry energy strength coefficient and the decrement of the nucleon effective mass, the maximum mass of nentron star increases. Meanwhile, the nuclear equation of state with large incompressibility, symmetry energy strength coefficient and nucleon effective mass results in relatively large neutron radius. These results imply that one can get some information about the nuclear equation of state by investigating the macroscopical variables of neutron stars such as mass and radius etc. The relationship of the mass and radius of neutron star is also investigated.

HTML

Reference (1)

Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article