Third discontinuity in the VELA pulsar period

Details Third discontinuity in the VELA pulsar period Third discontinuity in the VELA pulsar period

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.259..291m&link_type=abstract

Nature, vol. 259, Jan. 29, 1976, p. 291, 292.

Astronomy and Astrophysics

Astronomy

27

Periodic Variations, Pulsars, Stellar Rotation, Discontinuity, Radio Astronomy, Stellar Luminosity, Stellar Radiation

Scientific paper

Data obtained at 2295 MHz with a 26-m antenna at the NASA Deep Space Center near Canberra, Australia, are reported which indicate that the period of the Vela pulsar decreased discontinuously by approximately two parts in one million near the beginning of October 1975. Prejump and postjump timing parameters are presented for the pulsar, and the jump is estimated to have occurred sometime between September 25 and October 15. It is noted that the parameters of the present jump are very similar to those of the previous jumps in March 1969 and August 1971 despite the fact that the interval between the second and third jumps is 60% greater than that between the first and second.

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