Home > Astronomy, Astrophysics, General Astronomy, Neutron Stars, X-Rays > The University Of Alicante Finds The First Evidence Of A New Phase In Neutron Stars

The University Of Alicante Finds The First Evidence Of A New Phase In Neutron Stars


A study led by the University of Alicante, in which in the National Research Council (CSIC) has participated, has detected what may be the first observational evidence of existence of a new exotic phase of matter in the inner crust of neutron stars (pulsars).

The latest issue of Nature Physics shows the results of a research project that addresses one of the unknowns in the field of X-ray pulsars, the existence of a limit higher than 12 seconds in the rotation periods of isolated neutron stars. This limit is actually due to the existence of new exotic phases of matter. Pulsars are neutron stars (ultracompact and strongly magnetized stars) in rotation, which emit electromagnetic radiation with amazing precision in their periodicity.

As José A. Pons says, lecturer at the University of Alicante’s Relativistic Astrophysics Group and Director of the Department of Applied Physics, who led the work: “This may be the first observational evidence of existence of the phase of nuclear ‘pasta’ inside neutron stars, which may allow that future missions of X-ray observatories can be used to define aspects of how nuclear interaction works, which is not yet entirely clear”.

Nuclear Pasta, named for its resemblance to the Italian pasta, occurs when the combination of nuclear and electromagnetic forces, at densities close to the atomic nuclei, favours the ordering of the nucleons (protons and neutrons) in non-spherical shapes , as sheets or filaments (lasagna or spaghetti).

Full Story: http://www.alphagalileo.org/ViewItem.aspx?ItemId=132027&CultureCode=en

Advertisements
  1. No comments yet.
  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: