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Perturbative solution to the Lane-Emden equation: An eigenvalue approach
Kenny L. S. Yip, T. K. Chan, P. T. Leung
Under suitable scaling, the structure of self-gravitating polytropes is described by the standard Lane-Emden equation (LEE), which is characterised by the polytropic index . Her…
When the Jeans don't fit: How stellar feedback drives stellar kinematics and complicates dynamical modeling in low-mass galaxies
Kareem El-Badry, Andrew R. Wetzel, Marla Geha +5
In low-mass galaxies, stellar feedback can drive gas outflows that generate non-equilibrium fluctuations in the gravitational potential. Using cosmological zoom-in baryonic simulat…
Low-Redshift Lyman Limit Systems as Diagnostics of Cosmological Inflows and Outflows
Z. Hafen, C. -A. Faucher-Giguere, D. Angles-Alcazar +6
We use cosmological hydrodynamic simulations with stellar feedback from the FIRE project to study the physical nature of Lyman limit systems (LLSs) at z<1. At these low redshifts,…
Metal flows of the circumgalactic medium, and the metal budget in galactic halos
Alexander L. Muratov, Dusan Keres, Claude-Andre Faucher-Giguere +8
We present an analysis of the flow of metals through the circumgalactic medium (CGM) in the Feedback in Realistic Environments (FIRE) simulations of galaxy formation, ranging from…
The impact of stellar feedback on hot gas in galaxy haloes: the Sunyaev-Zel'dovich effect and soft X-ray emission
Freeke van de Voort, Eliot Quataert, Philip F. Hopkins +5
The thermal Sunyaev-Zel'dovich (SZ) effect and soft X-ray emission are routinely observed around massive galaxies and in galaxy groups and clusters. We study these observational di…