منابع مشابه
X-ray Emission from the Radio Jet in 3c 120
We report the discovery of X-ray emission from a radio knot at a projected distance of 25′′ from the nucleus of the Seyfert galaxy, 3C 120. The data were obtained with the ROSAT High Resolution Imager (HRI). Optical upper limits for the knot preclude a simple power law extension of the radio spectrum and we calculate some of the physical parameters for thermal bremsstrahlung and synchrotron sel...
متن کاملThe X-ray Jet of 3C 120: Evidence for a Non-standard Synchrotron Spectrum
We report on archival data from the Chandra X-ray Observatory for the radio jet of 3C120. We consider the emission process responsible for the X-rays from 4 knots using spectra constructed from radio, optical, and X-ray intensities. While a simple synchrotron model is adequate for three of the knots, the fourth (’k25’), which was previously detected by ROSAT and is now well resolved with Chandr...
متن کاملDetection of Optical Synchrotron Emission from the Radio Jet of 3c 279
We report the detection of optical and ultraviolet emission from the kiloparsec scale jet of the well-known quasar 3C 279. A bright knot, discovered in archival V and U band Hubble Space Telescope Faint Object Camera images, is coincident with a peak in the radio jet ∼0.6 from the nucleus. The detection was also confirmed in Wide Field Planetary Camera-2 images. Archival Very Large Array and ME...
متن کاملSearch for Electron-positron Annihilation Radiation from the Jet in 3c 120
We report an attempt to detect the electron-positron annihilation line from the radio galaxy 3C 120, in which the jet interacts strongly with interstellar clouds. Such interactions should cause most of the jet plasma tomix with the gas in the clouds. This will thermalize the majority of any positrons in the jet, leading to continuous annihilation with ambient electrons. We derive the number den...
متن کاملMonthly 43 Ghz Vlba Polarimetric Monitoring of 3c 120 over 16 Epochs: Evidence for Trailing Shocks in a Relativistic Jet
We present a 16-month sequence of monthly polarimetric 43 GHz VLBA images of the radio galaxy 3C 120. The images probe the inner regions of the radio jet of this relatively nearby superluminal radio galaxy at a linear resolution of 0.07 h 65 pc (Ho = 65 h65 km s −1 Mpc). We follow the motion of a number of features with apparent velocities between 4.01±0.08 and 5.82±0.13 h 65 c. A new superlumi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1995
ISSN: 0004-637X
DOI: 10.1086/309701