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A 3D View of Orion: I. Barnard's Loop
Michael M. Foley, Alyssa Goodman, Catherine Zucker +11
Barnard's Loop is a famous arc of H emission located in the Orion star-forming region. Here, we provide evidence of a possible formation mechanism for Barnard's Loop and compare…
Novel Conservative Methods for Adaptive Force Softening in Collisionless and Multi-Species N-Body Simulations
Philip F. Hopkins, Ethan O. Nadler, Michael Y. Grudic +3
Modeling self-gravity of collisionless fluids (e.g. ensembles of dark matter, stars, black holes, dust, planetary bodies) in simulations is challenging and requires some force soft…
Effects of the environment on the multiplicity properties of stars in the STARFORGE simulations
Dávid Guszejnov, Aman N. Raju, Stella S. R. Offner +4
Most observed stars are part of a multiple star system, but the formation of such systems and the role of environment and various physical processes is still poorly understood. We…
Hyper-Eddington Black Hole Growth in Star-Forming Molecular Clouds and Galactic Nuclei: Can It Happen?
Yanlong Shi, Kyle Kremer, Michael Y. Grudić +2
Formation of supermassive black holes (BHs) remains a theoretical challenge. In many models, especially beginning from stellar relic "seeds," this requires sustained super-Eddingto…
Effects of the environment and feedback physics on the initial mass function of stars in the STARFORGE simulations
Dávid Guszejnov, Michael Y. Grudić, Stella S. R. Offner +3
One of the key mysteries of star formation is the origin of the stellar initial mass function (IMF). The IMF is observed to be nearly universal in the Milky Way and its satellites,…
FIRE-3: Updated Stellar Evolution Models, Yields, & Microphysics and Fitting Functions for Applications in Galaxy Simulations
Philip F. Hopkins, Andrew Wetzel, Coral Wheeler +18
Increasingly, uncertainties in predictions from galaxy formation simulations (at sub-Milky Way masses) are dominated by uncertainties in stellar evolution inputs. In this paper, we…
Cluster assembly and the origin of mass segregation in the STARFORGE simulations
Dávid Guszejnov, Carleen Markey, Stella S. R. Offner +4
Stars form in dense, clustered environments, where feedback from newly formed stars eventually ejects the gas, terminating star formation and leaving behind one or more star cluste…