|
other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2000A&A...355..915A - Astronomy and Astrophysics, volume 355, 915-921 (2000/3-3)
Precession, beaming and the periodic light curve of OJ 287.
ABRAHAM Z.
Abstract (from CDS):
The strong periodic optical flares of OJ 287 are explained in terms of the increase in the beaming factor when a precessing jet approaches the line of sight. The geometrical parameters of the precession are determined from the kinematical properties of the parsec scale superluminal features in the radio jet. The possible values of the Lorentz factor γ for the bulk motion in the jet are constrained by the half-life of the optical flares. A moderate value, γ≃7, gives the best fitting to the data.
Abstract Copyright: ∼
Journal keyword(s): galaxies: BL Lacertae objects: individual: OJ 287 - galaxies: jets - radio continuum: galaxies - galaxies: magnetic fields - galaxies: photometry
Simbad objects: 9
To bookmark this query, right click on this link: simbad:2000A&A...355..915A and select 'bookmark this link' or equivalent in the popup menu