[01] Man Ho Chan, Department of Science and Environmental Studies, the Hong Kong Institute of Education, Hong Kong, China.

Observations indicate that the total density distribution is almost isothermal in many galaxies. In this article, I show that if the feedbacks from supermassive black hole and photon-baryon interaction are important, the total density distribution would become isothermal naturally. This explains why most rotation curves in galaxies are generally flat for the outer region and provides a solution to the dark matter-baryon conspiracy.

Dark Matter, Supermassive Black Hole, Galaxies, Velocity Dispersion

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