Prospects of Detecting Baryon and Quark Superfluidity from Cooling   Neutron Stars
  Baryon and quark superfluidity in the cooling of neutron stars are investigated. Observations could constrain combinations of the neutron or Lambda-hyperon pairing gaps and the star's mass. However, in a hybrid star with a mixed phase of hadrons and quarks, quark gaps larger than a few tenths of an MeV render quark matter virtually invisible for cooling. If the quark gap is smaller, quark superfluidity could be important, but its effects will be nearly impossible to distinguish from those of other baryonic constituents. 
Dany Page (1), Madappa Prakash (2), James M. Lattimer (2) and Andrew   Steiner (2) ((1) Instituto de Astronomia, UNAM, Mexic...