Comprehensive Studies of Neutron Stars (RIKEN symposium)

24 Nov 2015, 10:00 → 25 Nov 2015, 17:30 Asia/Tokyo

Nishina Hall (仁科ホール) (RIKEN, Wako Campus)

Neutron stars are one of the most enchanting classes of celestial objects, full of profound physics and novel astrophysics. Intending to better understand them, this workshop tries to bring together up-to-date studies in research fields closely related to neutron stars, including accelerator-based experiments, observations in photons and charged particles, as well as numerical and theoretical efforts. This timing has been chosen in order to; (i) expand our scientific frontier with ASTRO-H to be launched soon, (ii) enhance our utilization of RIBF, MAXI, and the rich Suzaku archive, (iii) accelerate future projects including PRAXyS and K-EUSO, and (iv) pursue astrophysics-oriented results from the KAKENHI Innovative Area “Nuclear matter in neutron stars investigated by experiments and astronomical observations” (led by Prof. H. Tamura) which continues till the end of FY2016. The workshop is rather informal, and talks are all solicited ones, but active discussion is highly encouraged. The speakers are asked to prepare their presentations in English, and give their talks also in English (but depending on audience). Participants (including the invited speakers) are kindly asked to make registrations by November 17. No workshop fee needs to be paid, and the banquet fee (if you attend) is collected on site with cash.

Tuesday, 24 November

10:00 → 10:15 Opening Remarks (K. Makishima, RIKEN)

10:15 → 11:45 Acceleration and Explosion

10:15 Acceleration of UHE Cosmic Rays by Neutron Stars (T. Ebisuzaki, RIKEN/EUSO)

10:45 Galactic Positron Anomaly and Neutron Stars (Marco Casolino, RIKEN/EUSO)

11:15 Gamma-ray Compact Binaries (Maxim Barkov, RIKEN/ABBL）

11:45 → 13:00 Lunch

13:00 → 14:00 Acceleration and Explosion

13:00 Pulsar Magnetospheres and Magnetic Reconnection (T. Wada, RIKEN/ABBL）

13:30 Topics from Pulsar Electrodynamics (S. Shibata, Yamagata U.)

14:00 → 15:00 Magnetic Field

14:00 Polarization of Magnetar Soft X-rays and Pulsar Emission (T. Tamagawa, RIKEN/Nishina)

14:30 Free Precession of Magnetars and Prospects for ASTRO-H (H. Murakami, U. Tokyo)

15:00 → 15:30 Coffee Break

15:30 → 17:30 Magnetic Field and Interior

15:30 Super Fluids inside Neutron Stars and Their Magnetism (Y. Kojima, Hiroshima U.)

16:00 Chiral Assymetry Model for Magnetars (N. Onishi, U. Tokyo & Tokyo Metro U.)

16:30 Astrophysical Phenomena in the QED Critical Fields: ASTRO-H Challenges (T. Enoto, Kyoto U./Hakubi/Dept. Astronomy & RIKEN)

17:00 Gravitational Redshifts of spectral features to be Probed with ASTRO-H (T. Dotani, JAXA/ISAS)

18:00 → 20:00 Banquet

Wednesday, 25 November

10:00 → 12:00 Supernovae and Nucleosynthesis

10:00 Study of Core-Collapse Supernova Explosions (T. Takiwaki, RIKEN/ABBL)

10:30 Progenitors of Magnetars and Associated SNRs (T. Nakano, U. Tokyo/RESCEU)

11:00 Nucleosynthesis and Chemical Evolution in Supernovae and Neutron-Star Mergers (T, Kajino, NAOJ)

11:30 Nuclear Astrophysics at RIBF: Current Status and Future Plan (S. Nishimura, RIKEN/Nishina)

12:00 → 13:00 Lunch

13:00 → 13:30 Supernovae and Nucleosynthesis

13:00 R-Process in Mergers between Neutron Stars (T. Shigeyama, U. Tokyo/RESCEU)

13:30 → 15:00 Accetion

13:30 Super Bursts on Neutron Stars and Rp-Process (M. Serino, RIKEN/MAXI)

14:00 Recent Topics with Low-Mass X-ray Binaries (T. Mihara, RIKEN/MAXI)

14:30 Observations of Cyclotron Resonance Features (W.B. Iwakiri, RIKEN/Nishina)

15:00 → 15:30 Coffee Break

15:30 → 17:00 Interior and Nuclear EOS

15:30 Interior of Neutron Stars and Nuclear EOS (N. Yasutake, Chiba Inst.Tech.)

16:00 Nuclear EOS from Experimental Nuclear Physics (T. Isobe, RIKEN/Nishina)

16:30 Spin Up/Down of X-ray Pulsars and their Moment of Inertia (M. Sugizaki, RIKEN/MAXI)

17:00 → 17:30 Discussion