Hints of correlation between broad-line and radio variations for 3C 120
arXiv:1311.1369 · doi:10.1088/0004-6256/147/1/17
Abstract
In the paper, we investigate correlation between broad-line and radio variations for broad-line radio galaxy 3C 120. By the z-transformed discrete correlation function method and the model-independent flux randomization/random subset selection (FR/RSS) Monte Carlo method, we find that the broad Hbeta line variations lead the 15 GHz variations. The FR/RSS method shows that the Hbeta line variations lead the radio variations by a factor of tau_{ob}=0.34 +/- 0.01 yr. This time lag can be used to locate the position of emitting region of radio outbursts in jet, on the order of ~ 5 light-years, from the central engine. This distance is much larger than the size of broad-line region. The large separation of the radio outburst emitting region from the broad-line region will observably influence the gamma-ray emission in 3C 120.
accepted in AJ, 9 pages, 3 figures
References in corpus (12)
- Probing the Inner Jet of the Quasar PKS 1510-089 with Multi-waveband Monitoring during Strong Gamma-ray Activity
- A change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279
- Reverberation Mapping Results for Five Seyfert 1 Galaxies
- On the relation between AGN gamma-ray emission and parsec-scale radio jets
- The spectrum of the Broad Line Region and the high-energy emission of powerful blazars
- The redshift-dependence of gamma-ray absorption in the environments of strong-line AGN
- Constraining the location of rapid gamma-ray flares in the FSRQ 3C 273
- The role of relativistic jets in the heaviest and most active supermassive black holes at high redshift
- Intrinsic absorption in 3C 279 at GeV-TeV energies and consequences for estimates of the EBL
- Photometric reverberation mapping of 3C120
- Absorption of 10 Gev--1 Tev Gamma Rays by Radiation from Broad-Line Region in 3C 279
- Origin of the X-rays and Possible GeV-TeV Emission from the Western Hot Spot Of Pictor A