06 Feb 2018

  • (abs, pdf) Amorisco, Globular cluster populations and the kinematical fingerprints of minor mergers
  • (abs, pdf) Zwart & Boekholt, Numerical verification of the microscopic time reversibility of Newton's equations of motion: Fighting exponential divergence
  • (abs, pdf) Dupont & Enßlin, Consistency and convergence of simulation schemes in Information field dynamics
  • (abs, pdf) Seifried et al., Is molecular cloud turbulence driven by external supernova explosions?
  • (abs, pdf) Ceccarelli et al., The evolution of grain mantles and silicate dust growth at high redshift
  • (abs, pdf) Butler et al., Maximally Rotating Supermassive Stars at the Onset of Collapse: The Perturbative Effects of Gas Pressure, Magnetic Fields, Dark Matter and Dark Energy

05 Feb 2018

  • (abs, pdf) Tagawa et al., Compact object mergers driven by gas fallback
  • (abs, pdf) Nickerson et al., A simple model for molecular hydrogen chemistry coupled to radiation hydrodynamics
  • (abs, pdf) Fragkoudi et al., The disc origin of the Milky Way bulge: II. Dissecting the chemo-morphological relations using N-body simulations and APOGEE
  • (abs, pdf) Shamir et al., Best Practices for a Future Open Code Policy: Experiences and Vision of the Astrophysics Source Code Library
  • (abs, pdf) Kobayashi et al., Three-dimensional structure of clumpy outflow from supercritical accretion flow onto black holes
  • (abs, pdf) Heinrich & Hu, Does Planck 2015 polarization favor high redshift reionization?

01 Feb 2018

  • (abs, pdf) Hopkins & Squire, Ubiquitous Instabilities of Dust Moving in Magnetized Gas
  • (abs, pdf) Lovell et al., The fraction of dark matter within galaxies from the IllustrisTNG simulations
  • (abs, pdf) Conroy et al., Metal-rich, Metal-poor: Updated Stellar Population Models for Old Stellar Systems
  • (abs, pdf) Ceverino et al., FirstLight II: Star formation rates of primeval galaxies from z=5-15
  • (abs, pdf) Abe & Yajima, Suppression of globular cluster formation in metal-poor gas clouds by Lyman-alpha radiation feedback
  • (abs, pdf) Regier et al., Cataloging the Visible Universe through Bayesian Inference at Petascale

31 Jan 2018

  • (abs, pdf) Sameie et al., The impact of baryonic disks on the shapes and profiles of self-interacting dark matter halos
  • (abs, pdf) Alabi et al., Origins of ultra-diffuse galaxies in the Coma cluster – I. Constraints from velocity phase-space
  • (abs, pdf) Ferre-Mateu et al., Origins of ultra-diffuse galaxies in the Coma cluster II. Constraints from their stellar populations
  • (abs, pdf) Martin et al., Secular black-hole growth: Normal black holes in bulge-less galaxies: the largely quiescent, merger-free growth of black holes over cosmic time
  • (abs, pdf) Eide et al., The Epoch of IGM heating by early sources of X-rays

New paper: Connection between early and local galaxies

Earlier this month, our paper (arXiv) on the chemical enrichment of the first galaxies and their connection to local ultra-faint dwarf galaxies was accepted to MNRAS. This paper was led by JHU postdoctoral researcher Lauren Corlies. We compared the average metallicities of both simulated and actual galaxies to determine how and when they were enriched, in particular if Population III (metal-free) stars imprinted on them. We also explored an analytical model of metal enrichment (i.e. blastwave evolution) that matched the simulation data to a reasonable degree. We found that the simulation produced metallicity distributions in single galaxies that are narrower than the data, and future work is needed to address this inconsistency in simulations of low-mass galaxies.

New paper: Supermassive star formation

Last month we submitted a paper (arXiv) on the direct collapse of a gaseous cloud into the beginnings of a supermassive star that will then further collapse into massive black hole around 10,000 to 100,000 solar masses.  This paper was led by postdoctoral research Yang Luo at Osaka University and University of Kentucky.  We used the simulation code Enzo to perform this work.  The unique and groundbreaking aspect of this study was that we used radiation transport to understand how radiation slowed any cooling of the gas and thus collapse.  This can change the collapse dynamics and could have impacts on the final properties of the star. We followed the collapse all the way down to the protostellar accretion with resolution

29 Jan 2018

  • (abs, pdf) Dickinson et al., Galaxy Zoo: Morphological classification of galaxy images from the Illustris simulation
  • (abs, pdf) Luo et al., Direct Collapse to Supermassive Black Hole Seeds with Radiative Transfer: Isolated Halos
  • (abs, pdf) Corlies et al., Exploring Simulated Early Star Formation in the Context of the Ultrafaint Dwarf Galaxies
  • (abs, pdf) Barnes et al., Galaxy Formation Efficiency and the Multiverse Explanation of the Cosmological Constant with EAGLE Simulations
  • (abs, pdf) De Clercq et al., A better communicator is always a better scientist, or the reason why every PhD student should engage in science outreach