A recent arXiv article measures the variation of gravitational potential in a local region around the solar system, and from that it tries to infer the mass density. Are there any valid counterarguments to their conclusion, i.e: that there is no dark matter near our vicinity?
The article presents some seemingly very interesting results that definitely don't seem to mesh with the standard model of things. There hasn't been time for any big responses to come out, but there are a few things that stood out to me from their article. Note, I haven't checked any of their calculations personally---I want to hear what the real experts say about it first.
Its a really interesting paper; and off the top of my head... its really hard to think of any way to reconcile their results (if they're true) with the standard model of dark-matter halos. This is definitely something worth paying attention too.