Tag Archives: Bfield

04 Apr 2012

  • (abs, pdf) D’Onghia et al., Self-Perpetuating Spiral Arms in Disk Galaxies
  • (abs, pdf) Di Cintio et al., Size matters: the non-universal density profile of subhaloes in SPH simulations and implications for the Milky Way’s dSphs
  • (abs, pdf) Zackrisson et al., Detecting gravitationally lensed population III galaxies with HST and JWST
  • (abs, pdf) Schober et al., The Small-Scale Dynamo and Non-Ideal MHD in Primordial Star Formation

Talk: Extragalactic B-fields from Gamma Rays

Speaker: Tom Weisgarber (Chicago)

  • Voids: <1nG; filaments: ~0.3 µG; galaxies: ~1 µG; clusters: 10 µG.  No detections of B-fields in voids.
  • Gamma rays interact with the extragalactic background light (EBL) and create electron-positron pairs, which then cascade down to create more gamma rays. This cascade is then observed with some opening angle.  Pair production and inverse Compton scattering are the important processes in creating the cascades.
  • Semi-analytic model for the cascade: Huan+ (2011, ApJL 735, 28). Using the blazar RGB J0710+591, they constrain the B-field to be <3e-16 G (<3e-18 G for a 3 year livetime).

13-17 Oct 2011

  • (abs, pdf) Bode et al., Mergers of Supermassive Black Holes in Astrophysical Environments
  • (abs, pdf) Schleicher et al., Magnetic fields in the first galaxies: Dynamo amplification and limits from reionization
  • (abs, pdf) Peters et al., Radiative Feedback in Massive Star and Cluster Formation
  • (abs, pdf) Commercon et al., Collapse of massive magnetized dense cores using radiation-magneto-hydrodynamics: early fragmentation inhibition

Catchup, 8-19 Aug 2011

  • (abs, pdf) Ocvirk & Aubert, A signature of the internal reionisation of the Milky Way?
  • (abs, pdf) Pakmor et al., Magnetohydrodynamics on an unstructured moving grid
  • (abs, pdf) Schleicher & Miniati, Primordial magnetic field constraints from the end of reionization
  • (abs, pdf) Gnedin, Does Baryonic Tully-Fisher Relation Conflict with LCDM?
  • (abs, pdf) Hopkins et al., The Origins of AGN Obscuration: The ‘Torus’ as a Dynamical, Unstable Driver of Accretion
  • (abs, pdf) Shull et al., Critical Star-Formation Rates for Reionization: Full Reionization occurs at z = 7
  • (abs, pdf) Kazantzidis et al., Formation of Dwarf Spheroidal Galaxies Via Mergers of Disky Dwarfs
  • (abs, pdf) Pereira & Miranda, Supermassive Black Holes: Connecting the Growth to the Cosmic Star Formation Rate