21 Sept 2017

• (abs, pdf) Matthee et al., ALMA reveals metals yet no dust within multiple components in CR7
• (abs, pdf) Jaacks et al., Dust in the first galaxies

20 Sept 2017

• (abs, pdf) Farina et al., Mapping the Lyman-Alpha Emission Around a z~6.6 QSO with MUSE: Extended Emission and a Companion at Close Separation
• (abs, pdf) McLure et al., Dust attenuation in 2&lt;z&lt;3 star-forming galaxies from deep ALMA observations of the Hubble Ultra Deep Field

19 Sept 2017

• (abs, pdf) Pfrommer et al., Simulating Gamma-ray Emission in Star-forming Galaxies
• (abs, pdf) Gray et al., Effect of Angular Momentum Alignment and Strong Magnetic Fields on the Formation of Protostellar Disks
• (abs, pdf) Mason et al., The Universe is Reionizing at z~7: Bayesian Inference of the IGM Neutral Fraction Using Ly$\alpha$ Emission from Galaxies

New Paper: Population III observational signatures in the First Galaxies?

Earlier this week, we submitted a new paper (arXiv), led by Kirk Barrow, on possible Population III observational signatures in the first galaxies, working off the Renaissance Simulations. While most metal-free stars might be tens of solar masses, intermediate-mass stars (1-8 solar masses) are still possible.  Alone, they wouldn’t contribute significantly to the overall spectrum of the galaxy. However if they are part of a binary system, its material might overflow onto a companion black hole as it enters the giant phase. This is called a high-mass X-ray binary and might have observational consequences as they could occur more frequently in Population III. We look at a few case studies in simulation data, while also providing statistics on the overall population of early galaxies. For more information, take a look at the paper!

15 Sept 2017

• (abs, pdf) Barrow et al., First Light II: Emission Line Extinction, Population III Stars, and X-ray Binaries

14 Sept 2017

• (abs, pdf) Nakajima et al., The VIMOS Ultra Deep Survey: On the nature, ISM properties, and ionizing spectra of CIII]1909 emitters at z=2-4
• (abs, pdf) Vallini et al., CO line emission from galaxies in the Epoch of Reionization
• (abs, pdf) Hoag et al., HST Grism Observations of a Gravitationally Lensed Redshift 10 Galaxy
• (abs, pdf) Levinson & Nakar, Limits on the growth rate of supermassive black holes at early cosmic epochs
• (abs, pdf) Onoue et al., Minor Contribution of Quasars to Ionizing Photon Budget at z~6: Update on Quasar Luminosity Function at the Faint-end with Subaru/Suprime-Cam

13 Sept 2017

• (abs, pdf) Chevallard et al., The ionization properties of extreme nearby star-forming regions
• (abs, pdf) Schreiber et al., Jekyll & Hyde: quiescence and extreme obscuration in a pair of massive galaxies 1.5 Gyr after the Big Bang
• (abs, pdf) Smith et al., Supernova feedback in numerical simulations of galaxy formation: separating physics from numerics
• (abs, pdf) Reggiani et al., Constraining cosmic scatter in the Galactic halo through a differential analysis of metal-poor stars
• (abs, pdf) Natale et al., Ray-tracing 3D dust radiative transfer with DART-Ray: code upgrade and public release

12 Sept 2017

• (abs, pdf) Oteo et al., An extreme proto-cluster of luminous dusty starbursts in the early Universe
• (abs, pdf) Jiang et al., Super-Eddington Accretion Disks around Supermassive black Holes

11 Sept 2017

• (abs, pdf) Hirashita et al., Dust masses of $z&gt;5$ galaxies from SED fitting and ALMA upper limits

08 Sept 2017

• (abs, pdf) Carilli et al., Galaxies into the Dark Ages
• (abs, pdf) Cohen et al., Charting the Parameter Space of the 21-cm Power Spectrum