BL Lacertae objects: The case for synchronous optical-radio outbursts in OJ 287

Journal Article · Sat Sep 01 04:00:00 EDT 1979 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/112538· OSTI ID:5929697

Usher, P D

Photometry of the BL Lacertae object OJ 287 on Palomar 48-in Schmidt plates is given, covering the years 1966--1978. An optical light curve for the period 1966--1976, constructed from all published photometry, along with radio light curves for wavelengths of 3 mm--18 cm, shows evidence for the existence of discrete bursts. The likelihood that most of the optical bursts are synchronous with radio counterparts is discussed. Some theoretical implications of a purely synchrotron interpretation are explored. The final section contains a summary of the results.

• Research Organization: Department of Astronomy, The Pennsylvania State University, University Park, Pennsylvania 16802
• OSTI ID: 5929697
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 84:9; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
640105 -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
BREMSSTRAHLUNG
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
GALAXIES
MORPHOLOGY
PHOTOMETRY
QUASARS
RADIATIONS
RADIO GALAXIES
RADIOASTRONOMY
RADIOWAVE RADIATION
SYNCHROTRON RADIATION
VARIATIONS
VISIBLE RADIATION