Profile cover photo
Profile photo
Sesh Nadathur
50 followers
50 followers
About
Posts

Post has attachment
Supervoid superhype

Unfortunately, last week's cosmology story about a supervoid solving the cosmic mystery of the Cold Spot is incorrect and over-hyped.

http://blankonthemap.blogspot.com/2015/04/supervoid-superhype-or-publicity.html

Post has attachment
Unfortunately, last week's cosmology story about a supervoid solving the cosmic mystery of the Cold Spot is blatantly incorrect and over-hyped.
Add a comment...

Post has attachment

Post has attachment
There was a press release by the European Space Observatory this week, about a paper whose authors claim to have seen a 'spooky' alignment of the spins of the central black holes in quasars separated by billions of light years. They also suggest that this finding could overturn the whole of modern cosmology, by violating the cosmological principle - the assumption that the Universe is statistically homogenous and isotropic!

Unfortunately the claims far outstrip reality.The really spooky thing about this paper is the method of analysis used.
Add a comment...

Post has attachment
My summary of today's Planck paper on dust and gravitational waves ...
Biting the dust
Biting the dust
blankonthemap.blogspot.com
Add a comment...

Post has attachment
Add a comment...

Post has attachment
In my last post, I mentioned the claim that the Cold Spot in the cosmic microwave background is caused by a very large void — a "supervoid" — lying between us and the last scattering surface, distorting our vision of the CMB, and I promised to say a bit more about it soon. Well, my colleagues (Mikko, Shaun and Syksy) and I have just written a paper about this idea which came out on the arXiv last week, and in this post I'll try to describe the main ideas in it.
Add a comment...

Post has attachment
Some news from the world of cosmology.
Add a comment...

Post has attachment
The latest BICEP rumours: don't pay much attention to them.
New BICEP rumours: nothing to see here
New BICEP rumours: nothing to see here
blankonthemap.blogspot.com
Add a comment...

Post has attachment
Various cosmologists have been discussing the BICEP2 measurement of gravitational waves and assessing the likelihood of problems that could potentially have affected the result. I have been writing my take on these criticisms.

Part 1: http://blankonthemap.blogspot.fi/2014/03/bicep2-reasons-to-be-sceptical-part-1.html

Part 2: http://blankonthemap.blogspot.fi/2014/03/bicep2-reasons-to-be-sceptical-part-2.html

Part 3 is coming soon!
Add a comment...
Wait while more posts are being loaded