Abstract / Description of output
The BL Lacertae object OJ 287 was intensively monitored with the IUE
satellite from 1993 March 15 to 20 in the 2000-3000 A wavelength region.
The very low emission state of the source hampered the detection during
part of the 23 performed exposures. The light curve at 2650 A
constructed with the 11 best images exhibits a variable trend with a
factor is less than or approximately 2 enhancement of the flux in about
3 hours. Simultaneous ground based observations show an optical flux
variability of smaller amplitude, but correlated with the UV light curve
without any apparent lag. The radio light curve is nearly constant. The
UV emission state is the weakest observed in 15 years for this flaring
blazard, being a factor of less than or approximately 20 lower than the
maximum recorded one.
Original language | English |
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Pages (from-to) | 57-60 |
Journal | Natural hazards and oceanographic processes from satellite data |
Volume | 16 |
DOIs | |
Publication status | Published - 1 Aug 1995 |
Keywords / Materials (for Non-textual outputs)
- Bl Lacertae Objects
- Light Emission
- Radio Astronomy
- Radio Sources (Astronomy)
- Ultraviolet Astronomy
- Emission Spectra
- Iue
- Light Curve
- Time Lag