About two weeks ago, I mentioned a recently published paper by Chilean authors Moni Bidin et al., claiming to have found no evidence for dark matter around our local neighbourhood in the Milky Way. Very soon afterwards, I pointed out a new pre-print by Bovy and Tremaine that rebutted this claim. Although I suppose I was fairly quickly on the scene, I wasn't particularly happy with the way I had reported this argument: just mentioning that some people disagree with each other without any explanation of the reasons is a bit closer to mere journalism than I was intending.
So this post will attempt to summarise and explain both papers to a non-expert (i.e. anyone who doesn't actually work in the field of galactic dynamics).
Read the rest at Blank On The Map
So this post will attempt to summarise and explain both papers to a non-expert (i.e. anyone who doesn't actually work in the field of galactic dynamics).
Read the rest at Blank On The Map
