Precipitation-Regulated AGN Feedback in Halos from 10^12 - 10^15 M_Sun
Abstract
Chandra observations of galaxy-cluster cores indicate that their AGNs regulate cooling, condensation, and star formation through precipitation-regulated feedback and raise an important question: Does precipitation-regulated AGN feedback also limit cooling and condensation of circumgalactic gas around smaller galaxies? Observations of the LX(<R) T relation support that hypothesis, but theory suggests that the details of the feedback mechanism may be somewhat different. We are proposing a program of simulations designed to test the precipitation hypothesis by revealing how the structure of diffuse X-ray emission in early-type galaxies depends on halo mass. Those simulations will be essential for testing the precipitation hypothesis with Chandra and preparing for ATHENA and Lynx.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2017
- Bibcode:
- 2017cxo..prop.5077V