Photometric and polarimetric study of two BL LAC objects

Journal Article · Mon Jul 01 00:00:00 EDT 1985 · Astrophysics (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF01084451· OSTI ID:6368358

Marchenko, S G

The results are given of polarimetric and photometric observations of the BL Lac objects OI 090.4 over the period 1979-1982 and B2 1418 + 54 over the period 1980-1982. For both objects it was noted that there was variability on a time scale of from several years to several days. The comparison of the polarimetric parameters indicates the existence of a preferred direction of polarization both for B2 1418 + 54 (theta /sub O/ = 120/sup 0/), and for OI 090.4 (theta /sub O/ = 50/sup 0/), which points to a stable magnetic field. For OI 090.4 it was observed that there was a certain dependence of the polarization parameters on the wavelength.

• Research Organization: Leningrad State Univ., Leningrad
• OSTI ID: 6368358
• Journal Information: Astrophysics (Engl. Transl.); (United States), Vol. 21:1; Other Information: Translated from Astrofizika, Vol. 22, No. 1, pp. 15-23, January-February, 1985
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
ELLIPSOMETRY
MONITORING
PHOTOMETRY
POLARIZATION
MAGNETIC FIELDS
ORIENTATION
TIME DEPENDENCE
WAVELENGTHS
MEASURING METHODS
640105* - Astrophysics & Cosmology- Galaxies