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Re: Records of lectures

New postPosted: Fri 5 Nov 2010 01:05
by Maxim Khlopov
Dear Ilya ,
Thank you for your questions.
1. Вы говорили, что темная материя может быть либо стабильной, либо нестабильной, с "темными" стабильными продуктами распада. Может ли темная материя быть динамически изменяющейся системой из нестабильных компонент, превращающихся друг в друга?
Yes, there may be an hierachy of decays of different unstable dark matter species. In the 2 semester we'll discuss such model. In the simplest variants they cannot convert in each other, since decays are irreversible processes, in which heavier species decay to lighter species, but not vice versa. However, in the models of interacting dark matter and dark energy, transitions from one form to another are also possible.
2. Если мы обнаружим из чего состоит темная материя (или ее часть), то будет ли обнаруженное по-прежнему называться темной материей?
There is no reason to change the name. This would be discovered dark matter, will remain dark (nonluminous) and nonbaryonic.
Regards
M.Yu.Khlopov

Re: Records of lectures

New postPosted: Mon 10 Jan 2011 13:40
by Larisa_MEPhI
I think it's something wrong with video "The Universe" part 2. After 11th minute there's silence and no action.

Re: Records of lectures

New postPosted: Mon 10 Jan 2011 18:16
by Maxim Khlopov
Dear Larisa,
Thank you for notifying us this problem.
We'll put correct record as soon as possible
Regards
M.Yu.Khlopov