On the Precession of Jets in X-Ray Binaries and AGNs

Details On the Precession of Jets in X-Ray Binaries and AGNs On the Precession of Jets in X-Ray Binaries and AGNs

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.392c&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

Radio jets have been detected in an increasing number of galactic sources (1E 1740.7-2942, GRS 1915+105, SS 433 for instance) and also in active galatic nuclei. The periodicity of the optical light curve in the BL Lac OJ 287 and the quasar 3C 279 has been explained by precession of the jets. Moreover, a precession has also been pointed out in the neutron star sytem SS 433 and recents results suggest it also in the black hole candidate GRS 1915+105. It's generally admitted that the OJ 287 periodicity is due a second black hole orbiting in a different plane than the accretion disk. In the contrary, we argue that different directions of angular momentum in the disk and the central black hole is sufficient to explain the precession of the jets. We suggest it could be a common property of X-ray binaries and AGNs for which precessing jets have already been observed.

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