TY - JOUR
T1 - Dynamics of superconducting cosmic strings
AU - Spergel, David N.
AU - Piran, Tsvi
AU - Goodman, Jeremy
N1 - Funding Information:
We have benefitted from discussion with A. Babul, J. Ostriker, B. Paczynski, W. Press, C. Thompson, and E. Witten. T.P. thanks the Aspen Center for stimulating his interest in cosmic strings. This work was supported by a W.M. Keck Foundation Fellowship (held by J.G.) and by NSF grant PHY8217352.
PY - 1987
Y1 - 1987
N2 - This paper introduces a covariant classical action for a superconducting string and derives the equations of motion for the string and its charge carriers. A formula for the electromagnetic power emitted by the moving string is calculated and is applied in the near-cusp region. The string emits beamed electromagnetic radiation, as well as relativistic particles, from the near-cusp region. A net current along the string can arise from either primordial flux threading the string loop or from a net asymmetry in the quantum number of the charge carriers. The string's motion in an external magnetic field can produce an oscillating current whose amplitude grows secularly. The implications of these results are discussed in the context of current astrophysical motins.
AB - This paper introduces a covariant classical action for a superconducting string and derives the equations of motion for the string and its charge carriers. A formula for the electromagnetic power emitted by the moving string is calculated and is applied in the near-cusp region. The string emits beamed electromagnetic radiation, as well as relativistic particles, from the near-cusp region. A net current along the string can arise from either primordial flux threading the string loop or from a net asymmetry in the quantum number of the charge carriers. The string's motion in an external magnetic field can produce an oscillating current whose amplitude grows secularly. The implications of these results are discussed in the context of current astrophysical motins.
UR - http://www.scopus.com/inward/record.url?scp=0001053410&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001053410&partnerID=8YFLogxK
U2 - 10.1016/0550-3213(87)90499-8
DO - 10.1016/0550-3213(87)90499-8
M3 - Article
AN - SCOPUS:0001053410
SN - 0550-3213
VL - 291
SP - 847
EP - 875
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - C
ER -