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Structure, Dynamics and Deuterium Fractionation of Massive Pre-Stellar Cores
Matthew D. Goodson, Shuo Kong, Jonathan C. Tan +2
High levels of deuterium fraction in NH are observed in some pre-stellar cores. Single-zone chemical models find that the timescale required to reach observed values ($D_{\…
The Impact of Feedback During Massive Star Formation by Core Accretion
Kei E. I. Tanaka, Jonathan C. Tan, Yichen Zhang
We study feedback during massive star formation using semi-analytic methods, considering the effects of disk winds, radiation pressure, photoevaporation and stellar winds, while fo…
The SOFIA Massive (SOMA) Star Formation Survey. I. Overview and First Results
James M. De Buizer, Mengyao Liu, Jonathan C. Tan +6
We present an overview and first results of the Stratospheric Observatory For Infrared Astronomy Massive (SOMA) Star Formation Survey, which is using the FORCAST instrument to imag…
A Hunt for Massive Starless Cores
Shuo Kong, Jonathan C. Tan, Paola Caselli +3
We carry out an ALMA (3-2) and 1.3~mm continuum survey towards 32 high mass surface density regions in seven Infrared Dark Clouds with the aim of finding massive starle…
The InfraRed Imaging Spectrograph (IRIS) for TMT: latest science cases and simulations
Shelley A. Wright, Gregory Walth, Tuan Do +36
The Thirty Meter Telescope (TMT) first light instrument IRIS (Infrared Imaging Spectrograph) will complete its preliminary design phase in 2016. The IRIS instrument design includes…
The Formation of Supermassive Black Holes from Population III.1 Seeds. I. Cosmic Formation Histories and Clustering Properties
Nilanjan Banik, Jonathan C. Tan, Pierluigi Monaco
We calculate cosmic distributions in space and time of the formation sites of the first, "Pop III.1" stars, exploring a model in which these are the progenitors of all supermassive…