ASTROPHYSICS: RESEARCH RESULTS FROM D.M. SEDRAKIAN AND COLLEAGUES UPDATE UNDERSTANDING OF ASTROPHYSICS

Science Letter
July 21, 2009

"The nonstationary dynamics of vortices in conventional type II
superconductors and in neutron stars is examined in the Newtonian
approximation," researchers in Yerevan, Armenia report (see also
Astrophysics).

"A relaxation equation is obtained for vortices approaching an
equilibrium distribution after a change in an external magnetic
field. The relaxation times are estimated for vortices in
low-temperature superconductors and for proton vortices in the
superconducting core of a neutron star," wrote D.M. Sedrakian and
colleagues.

The researchers concluded: "It is shown that the proton vortex system
created by entrainment currents is rigidly coupled to the neutron
vortices.."

Sedrakian and colleagues published their study in Astrophysics
(Relaxation of quantum vortices in type II superconductors and in
neutron stars. Astrophysics, 2009;52(2):264-275).

For additional information, contact D.M. Sedrakian, Erevan State
University, Yerevan, Armenia.

Publisher contact information for the journal Astrophysics is:
Springer, Plenum Publishers, 233 Spring St., New York, NY 10013, USA.