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Detecting the Rise and Fall of 21 cm Fluctuations with the Murchison Widefield Array
Adam Lidz, Oliver Zahn, Matthew McQuinn +2
We forecast the sensitivity with which the Murchison Widefield Array (MWA) can measure the 21 cm power spectrum of cosmic hydrogen, using radiative transfer simulations to model re…
Molecular Star Formation Rate Indicators in Galaxies
Desika Narayanan, Thomas J. Cox, Yancy Shirley +3
We derive a physical model for the observed relations between star formation rate (SFR) and molecular line (CO and HCN) emission in galaxies, and show how these observed relations…
Probing the Neutral Fraction of the IGM with GRBs during the Epoch of Reionization
Matthew McQuinn, Adam Lidz, Matias Zaldarriaga +2
We show that near-infrared observations of the red side of the Ly-alpha line from a single gamma ray burst (GRB) afterglow cannot be used to constrain the global neutral fraction o…
The Role of Galactic Winds on Molecular Gas Emission from Galaxy Mergers
Desika Narayanan, T. J. Cox, Brandon Kelly +7
We assess the impact of starburst and AGN feedback-driven winds on the CO emission from galaxy mergers, and, in particular, search for signatures of these winds in the simulated CO…
Rest-Frame Ultraviolet to Near Infrared Observations of an Interacting Lyman Break Galaxy at z = 4.42
Joshua D. Younger, Jia-Sheng Huang, Giovanni G. Fazio +11
We present the rest-frame ultraviolet through near infrared spectral energy distribution for an interacting Lyman break galaxy at a redshift z=4.42, the highest redshift merging sy…
Antitruncated Stellar Disks via Minor Mergers
Joshua D. Younger, T. J. Cox, Anil C. Seth +1
We use hydrodynamic simulations of minor mergers of galaxies to investigate the nature of surface brightness excesses at large radii observed in some spiral galaxies: antitruncated…