16 Jan 2017

  • (abs, pdf) Lee et al., The Carnegie-Chicago Hubble Program: Discovery of the Most Distant Ultra-faint Dwarf Galaxy in the Local Universe
  • (abs, pdf) Carniani et al., Extended ionised and clumpy gas in a normal galaxy at z=7.1 revealed by ALMA
  • (abs, pdf) Somerville et al., The Relationship between Galaxy and Dark Matter Halo Size from z~3 to the present
  • (abs, pdf) Qin et al., Dark-ages Reionization & Galaxy Formation Simulation VIII. Suppressed growth of dark matter halos during the Epoch of Reionization

New Paper: Mocking the First Galaxies for JWST

Yesterday, PhD candidate Kirk Barrow submitted his first (!) paper (arXiv), titled “First Light: Exploring the Spectra of High-Redshift Galaxies in the Renaissance Simulations”. Correlations between physical and observational properties of the first galaxies are imperative to determine before JWST launches in October 2018. We have examined two of the most massive galaxies in detail in mock spectra, imaging, and photometry and then searched for any trends in the ~1,600 galaxies in the sample. There is very high variability in the smallest galaxies (like the ultra faint dwarfs around the Milky Way), but the trends settle into various relationships above 1 million solar masses in stars when star formation occurs on a more regular basis. We also found that viewing angle can account for a 3-fold difference in emergent flux due to the absorption of intervening gas in the galaxy.

09 Jan 2017

  • (abs, pdf) Pezzulli et al., The angular momentum of cosmological coronae and the inside-out growth of spiral galaxies
  • (abs, pdf) Nadler et al., On the Apparent Power Law in CDM Halo Pseudo Phase Space Density Profiles
  • (abs, pdf) Bottrell et al., Galaxies in the Illustris simulation as seen by the Sloan Digital Sky Survey – I: Bulge+disc decompositions, methods, and biases