Optical Variability of the Radio Source J 1128+5925
arXiv:0710.1472 · doi:10.1088/0004-6256/135/1/258
Abstract
Very recently, J 1128+5925 was found to show strong intraday variability at radio wavelengths and may be a new source with annual modulation of the timescale of its radio variability. Therefore, its radio variability can be best explained via interstellar scintillation. Here we present the properties of its optical variability for the first time after a monitoring program in 2007 May. Our observations indicate that in this period J 1128+5925 only showed trivial optical variability on internight timescale, and did not show any clear intranight variability. This behavior is quite different from its strong radio intraday variability. Either this object was in a quiescent state in optical in this period, or it is intrinsically not so active in optical as it is in radio regimes.
9 pages, 3 figures
References in corpus (8)
- Interstellar scintillation as the origin of rapid radio variability in the quasar J1819+3845
- Annual modulation in the scattering of J1819+3845: peculiar plasma velocity and anisotropy
- The Intra-Night Optical Variability of the bright BL Lac object S5 0716+714
- Optical Monitoring of BL Lac Object S5 0716+714 with High Temporal Resolution
- Optical Monitoring of BL Lacertae Object S5 0716+714 with a Novel Multi-Peak Interference Filter
- The basic parameters of gamma-ray-loud blazars
- The IDV source J1128+5925, a new candidate for annual modulation?
- Optical multi-band observations of BL Lacertae during the outburst of 2005