Dark Stars

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Recorded: 2021/06/10 Released: 2021/10/31

Randy and Jim discuss various proposals for objects that mimic black holes. Most of these are based on physics that disallows an infinitely dense point at the center of the black hole, such as string theory or loop quantum gravity, and some include very exotic matter.
------------------------------------------- Notes:

1. Papers we both read for this program:

• Nikitin, I., "On Dark Stars, Planck Cores, and the Nature of Dark Matter ." BLED Proc. 23rd Wkshp. 1, 221 (2021) [arXiv]
• Visser, M., C. Barcelo, S. Liberati, and S. Sonego, "ISmall, Dark and Heavy: But Is It a Black Hole?." PoS BHs, GRandStrings 2008, 105009 (2008) [arXiv]
• Holdom, B. and J. Ren, "Not Quite a Black Hole." Phys Rev D 95> 084034 (2017). [arXiv]

2. Other papers one or the other of us read:

• Nikitin, I. "RDM-Stars and Galactic Rotation Curves." 2021 J. Phys. Conf. Series (2021) [arXiv]

3. Related Episodes of Physics Frontiers:

• Physics Frontiers 57: Quantum Effects in Gravitational Waves
• Physics Frontiers 51: Gracitational Wave Astronomy
• Physics Frontiers 45: Loop Quantum Gravity
• Physics Frontiers 25: Gravitational Field Propulsion
• Physics Frontiers 7: Virtual Gravitational Dipoles

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