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8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 1 Effects of Strong Magnetic Field (SMaF) on the Neutron Stars Myung-Ki Cheoun Astro Nuclear Physics.

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Presentation on theme: "8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 1 Effects of Strong Magnetic Field (SMaF) on the Neutron Stars Myung-Ki Cheoun Astro Nuclear Physics."— Presentation transcript:

1 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 1 Effects of Strong Magnetic Field (SMaF) on the Neutron Stars Myung-Ki Cheoun Astro Nuclear Physics Group Soongsil University, Seoul, Korea http://ssanp.ssu.ac.kr 8th APCTP-BLTP JINR Joint Workshop Jeju, June 29 ~ July 04, 2014 By L. Calçada/ESO

2 Collaborators Eunja Ha, Y. S. Kwon, Ki-Seok Choi, T. Miyatsu, M. Kusakabe, Ying Zhang, Gil-Seok Yang, C-Y. Ryu (Soongsil University) Hungshong Kim (Kookmin Univ.), K. S. Kim (Korea Aerospace Univ.) W. So (Kangwon Univ.), C. Hyun (Daegu Univ.)… K. Tsushima (IIP, Brazil), K. Saito (TSU) G. Mathews (Notre Dame), Baha Ballantekin (Wisconsin), Alex Brown (MSU) T. Kajino (NAOJ), Ko Nakamura (Waseda) T. Maruyama (Nihon Univ.), T. Hayakawa (JAEA), S. Chiba (TIT)… C. Deliduman. P. Yamac (Turkey) A. Faessler, F. Simkovic (Tuebingen Univ.)… 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 2

3 Contents 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 0. Introduction : 1. Equation of State for Dense Matter 1-1. Hartree-Fock Approximation in RMF+QMC models 1-2. SU(3) extension model 2. Modified Gravity and Magnetic field in Neutron Stars 2-1. Modified TOV 2-2. Magnetic field 3. Other properties in Neutron Stars 4. Summary and Conclusions 3 T. Miyatsu, MKC, K. Saito, PRC 88, 015802 (2013), ApJ 777,04,(2013)… MKC et.al, PRC 82, 025804, (2010); PRC 83, 018802 (2011); JCAP 10, 21 (2013)… PRD 86 (2012) 123003 ; PRD83 (2011) 081303(R); PRC89 (2014) 035801; PRD 90 (2014) in press … Origin of Matter

4 Supernova Nucleosynthesis in Neutrino-Drive n Winds Movie by Chiba, Koura & Kajino Proton Number Z 58 Ni 56 Fe 40 Ca 208 Pb 235 U 184 126 82 50 28 20 Neutron Number N 132 Sn

5 Contents 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 0. Introduction : 1. Equation of State for Dense Matter 1-1. Hartree-Fock Approximation in RMF+QMC models 1-2. SU(3) extension model 2. Modified Gravity and Magnetic field in Neutron Stars 2-1. Modified TOV 2-2. Magnetic field 3. Other properties in Neutron Stars 4. Summary and Conclusions 5 T. Miyatsu, MKC, K. Saito, PRC 88, 015802 (2013), ApJ 777,04,(2013)… MKC et.al, PRC 82, 025804, (2010); PRC 83, 018802 (2011); JCAP 10, 21 (2013)… PRD 86 (2012) 123003 ; PRD83 (2011) 081303(R); PRC89 (2014) 035801; PRD 90 (2014) in press … Origin of Matter Dense Matter Physics Strong Magnetic Field Physics : SMaF Physics

6 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 6 IntroductionNeutron Star and SMaF Courtesy by T. Maruyama …, EM waves

7 Pulsar Kick and Spin Deceleration of Neutron Stars in Supernovae Explosion 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 7

8 8 IntroductionPulsar Kick

9 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 9 FormalismLagrangian with SmaF

10 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 10 FormalismDirac Equation under SmaF

11 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 11

12 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 12 FormalismX-section of Lepton-Baryon Scattering

13 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 13 FormalismX-section of Lepton-Baryon Scattering

14 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 14 ResultsScattering and absorption X-sections

15 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 15 ResultsScattering and absorption X-sections Magnetic Field increases neutri nos emitted in the direction parallel to the magnetic field and decreases that in its opposite direction !!!

16 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 16 Pulsar KicksBoltzmann Equation

17 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 17 Pulsar KicksMean Free Paths of neutrinos in NS

18 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 18 Pulsar KicksAngular Dependence of emitted neutrinos

19 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 19 Pulsar Kicks Kick Velocity of Neutron Star

20 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 20 Spin DecelerationToroidal Magnetic Field

21 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 21 Spin DecelerationToroidal Magnetic Field

22 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 Summary and Conclusion for SMaF Physics 1.We calculated neutrino transport inside PNS, which shows an asymmetry with respect to the magnetic field direction in a magnetar, by exploiting RMF, neutrino scattering and Boltzman equation. 2.The asymmetry turns out to be a source of pulsar kicks of neutron stars. 3.For the spin deceleration of neutron star, we also considered toroidal magnetic field, in which we also found the asymmetry leading to the spin deceleration. 4.Additional source of neutrinos, URCA process is also shown to enlarge the asymmetry, which is to be published in PRD. 5.In the Universe, we need more deep understanding of strong magnetic field (SMaF) physics, for example, Landau quantization and polarization of particles inside neutron stars. 22

23 Thanks for your Attention !! 23 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03

24 24 ResultsScattering and absorption X-sections

25 8th APCTP-BLTP JINR Joint Workshop, Jeju, 2014.07.03 25


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