1. Japan-Italy Mini-Workshop 14-16 Jan, 2009 Center for Computational Sciences, University of Tsukuba

2. 14 Jan 13:25-13:30 Opening Remarks (Umemura) 13:30-15:00 Andrea Ferrara The Quest for First Stars break break 15:30-16:00 Hajime Susa Star Formation in Forming Disk Galaxies Under UVB 16:00-16:30 Kenji Hasegawa Radiative Regulation of Population III Star Formation 16:30-17:00 Umberto Maio The first light in the Universe and its consequences 15 Jan 10:00-10:30 Naoki Yoshida Formation of Primordial Stars 10:30-11:00 Kazuyuki Omukai Low-metallicityStar Formation 11:00-11:30 Toru Tsuribe Cloud Fragmentation via filament formation lunch lunch 13:30-14:00 Raffaella Schneider Dark matter, dust and CMB: adding complications to the “canonical” scenario 14:00-14:30 Takashi Hosokawa Protostellar Evolution and Final Stellar Masses in Low-Z Environments 14:30-15:00 Takashi Okamoto The baryon fraction of  CDM halos in reionized universe Program

3. 15:00-15:30 Hidenobu Yajima The Contribution of Lyman alpha Emitters and Lyman Break Galaxies to the IGM Ionization at High Redshifts break break 16:00-16:30 Marcos Valdes Investigating Reionization and Dark Matter through HI 21 cm line radiation 16:30-17:00 Ikko Shimizu Theoretical Model of Lyman Alpha Emitters and the Relation to Multi-Wavelength Observations Observations 17:00-17:30 Masayuki Umemura The Collapse of First Objects driven by Dark Matter Cusps dinner 18:30- dinner 18:30- 16 Jan 10:00-10:30 Nozomu Tominaga Core-Collapse Supernovae – Early or high redshift universe – 10:30-11:00 Kunihito Ioka Gamma Ray Burst 11:00-11:30 Susumu Inoue Can We Search for the First Stars Using GRBs? lunch lunch 13:30-14:00 Takaya Nozawa Nature of Dust in the Early Universe 14:00-14:30 Takuya Akahori Merging Galaxy Clusters – Abell 399 and Abell 401 14:30-15:00 Masao Mori 15:00-16:00 Discussion (Umemura)

4. Presentation Files http://www.ccs.tsukuba.ac.jp/people/umemura/Japan-Italy09/

5. Formation of the First Generation of Galaxies: Strategy for the “Observational Corroboration” of Physical Scenarios 第一世代銀河の形成： 物理的シナリオの “ 観測的実証 ” へ向けての戦略 December 1-6, 2003, Niigata University, JAPAN

6. First Star Physics  dark matter effect  dark matter effect  fragmentation process  fragmentation process  binary formation  binary formation  runaway & accretion  runaway & accretion  magnetic fields  magnetic fields  second generation  second generation critial metallicity, trigerred SF, UV  H2/HD cooling  H2/HD cooling  contribution to reionization  contribution to reionizationObservations  NIRB  NIRB  H2 emission  H2 emission  GRBs  GRBs + decay/annihilation  Pop III.2, Pop II.5 spiral ⇒ single star spiral ⇒ single star bar/ring ⇒ fragmentation bar/ring ⇒ fragmentation

7. n c = 1.28x10 15 cm -3 41 AU n c = 1.78x10 6 cm -3 3.4x10 5 AU L=4 L=22 2.6 AU n c = 7.08x10 8 cm -3 4.2x10 4 AU L=7 n c = 1.25x10 11 cm -3 2.6x10 3 AU L=11 n c = 2.81x10 13 cm -3 L=14 325 AU 0.32 AU n c = 2.82x10 17 cm -3 n c = 1.12x10 20 cm -3 L=25 L=28 8.6 R sun n c = 1.01x10 23 cm -3 L=17 Magnetic Fields +Rotation Machida et al. 2006 ApJ, 647, L1; 2008, ApJ, 685, 690 B>10 -9 (n c /10 3 cm -3 ) 2/3 G

8. Xu et al. 2008, ApJ, 688, L57 No initial B Biermann Battery Induction equation MHD Simulations of Population III Star Formation  B  10 -9 G at n  10 10 cm -3   P th /P B  10 15 ・ magnetic fields are not important for dynamics ・ rotation energy does not exceed the magnetic energy Cosmological

9. Galaxy Formation & Reionization Physics  first (small) galaxies  first (small) galaxies  UVB effect  UVB effect  gas stripping by shock  gas stripping by shock  SFH & Feedback  SFH & Feedback  on-going TsuCube  on-going TsuCube  metal enrichment (mixing, outflow)  metal enrichment (mixing, outflow)  formation of SMBHs  formation of SMBHsObservations  H2 in DLA  H2 in DLA  lensed QSOs  lensed QSOs  UVB history  UVB history  proximity effect of LBGs  proximity effect of LBGs  dispersion of GRB radio emission  dispersion of GRB radio emission  L  /H  ratio for double reionization  L  /H  ratio for double reionization  Cosmological RT Comparison Project

10. IGM Metal Enrichment & Dust Physics  cosmic chemical evolution  cosmic chemical evolution  galactic chemical evolution  galactic chemical evolution  metal production by SNe  metal production by SNe  metal mixing process  metal mixing process  dust outflow  dust outflow  dust formation/destruction  dust formation/destruction formation - nucleation, condensation destruction - sputtering, shattering destruction - sputtering, shattering metal depletion efficiency Observations  abundance pattern of metal-poor stars  abundance pattern of metal-poor stars  metallicity of IGM  metallicity of IGM  metal distribution in galaxies  metal distribution in galaxies  PISN problem