tag:blogger.com,1999:blog-7315236707728759521.post3269933822187633353..comments2024-03-28T21:52:52.100-06:00Comments on Dispatches From Turtle Island: ΛCDM Predicts The Wrong Mix Of Dark Matter HalosAndrew Oh-Willekehttp://www.blogger.com/profile/02537151821869153861noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-7315236707728759521.post-81026346951149806152020-01-30T10:00:45.669-07:002020-01-30T10:00:45.669-07:00There are lots of bad reasons to attack lambda. Bu...There are lots of bad reasons to attack lambda. But, there are also, as a link in the linked post, a few quite solid studies raising serious questions.andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-24155830999443492252020-01-30T00:58:05.680-07:002020-01-30T00:58:05.680-07:00While MOND might have some relevance to CDM, it ha...While MOND might have some relevance to CDM, it has practically no relevance to Lambda. Some people don't like the CDM in LambdaCDM so through the baby out with the bathwater and start attacking Lambda, often with a passion which belies their ignorance of cosmology and its history. (I won't mention any names---yet.)<br />Phillip Helbighttps://www.blogger.com/profile/12067585245603436809noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-2389403512493622782020-01-29T14:11:04.671-07:002020-01-29T14:11:04.671-07:00A more sophisticated gravity modification than MON...A more sophisticated gravity modification than MOND which is a good first order approximation for a wide range of circumstances (and cuts the inferred dark matter in clusters by about a third). Deur's analysis (see the link in the sidebar if you haven't already) argues that the cluster problem is basically an issue of the shape in which matter is distributed. In clusters you get a close approximation of a two point system in which basically you have gravitons squishing towards a one dimensional line between two points, rather than the two dimensional plane that you see in spiral galaxies and in non-spherical elliptical galaxies (truly spherical elliptical galaxies which are the largest have little or no inferred dark matter), a phenomena that has a close analogy in experimentally observed QCD call flux tubes.andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-58577517019789867452020-01-28T18:40:28.692-07:002020-01-28T18:40:28.692-07:00where does this leave us with?
MOND for galaxies ...where does this leave us with?<br /><br />MOND for galaxies and dark matter for galaxy clustersneohttps://www.blogger.com/profile/17318664916557810347noreply@blogger.com