D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

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D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

New postby Maxim Khlopov on Fri 27 Mar 2020 12:14

VIA lecture by Dong-Biao Kang "Explaining the cuspy dark matter halo by Landau-Ginzburg theory" was given on 27.03.2020. Its presentation is attached
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Attachments
Explaining the density profile of dark matter halo2.pdf
presentation of D-B Kang
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[i]Хлопов Максим Юрьевич
Maxim Khlopov[/i]
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Re: D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

New postby Dong-Biao Kang on Fri 27 Mar 2020 14:47

Thank you Maxim.
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Re: D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

New postby Maxim Khlopov on Fri 27 Mar 2020 14:58

Thank you, Bill, for joining this Forum discussion.
I had a question to you, which I didn't ask in view of our bad connection today:
You have mentioned pair interactions and violent relaxation as possible mechanisms of reaching equilibrium in a self-gravitating system.
There was an interesting mechanism of collective effects in such systems, proposed by V.G. Gurzadyan and G.K. Savvidi in Astrophys. J., V. 160, p.203 (1986). This mechanisms leads to relaxation time scale which is proportional to N^{2/3} and not to N/lnN as for pair interactions.
Can this mechanism influence your results?
[i]Хлопов Максим Юрьевич
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