Signals from SN 1987A in Amaldi-Weber antennas as the possible detection of scalar gravitational waves |
| |
| Authors: | Yu V Baryshev |
| |
| Institution: | (1) Astronomical Institute of St. Petersburg University, Russia |
| |
| Abstract: | An equation is obtained for the cross section of a metal Weber cylinder for scalar gravitational waves, which are possible
within the framework of the field theory of gravitation. It is shown that the signals detected by the Amaldi and Weber antennas
during the explosion of supernova SN 1987A can be interpreted as the result of the action of scalar gravitational waves on
solid-state detectors. The required energy of the gravitational waves is about 1 M⊙c2. Together with the observed excess (about 1 %) of gravitational radiation from the binary system containing the pulsar PSR
1913+16, the signals from SN 1987A are the second piece of observational evidence for the actual existence of scalar gravitational
waves. The present-day, third-generation, solid-state antennas are capable of detecting scalar waves from events like SN 1987A
at a distance up to 5 Mpc. The expected level of the signal from SN 19931 is about 7 mK. An experimental test of the longitudinal
nature of scalar waves is possible using interferometric antennas based on free masses.
Translated from Astrofizika, Vol. 40, No. 3, pp. 377–389, August, 1997. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
