Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247l..49m&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 247, July 15, 1981, p. L49-L52. NASA-NSF-supported research.
Astronomy and Astrophysics
Astrophysics
22
Extragalactic Radio Sources, Plasma Jets, Quasars, Relativistic Velocity, Very Long Base Interferometry, X Ray Sources, Compton Effect, Heao 2, Periodic Variations, Radio Spectra, Synchrotron Radiation
Scientific paper
VLBI radio and X-ray observations were made of the bright X-ray quasar NRAO 140. The radio structure consists of two very compact components plus a more diffuse jet. Based on the standard synchrotron theory, the Compton X-ray emission from one of these compact components was found to exceed the observed value by three orders of magnitude. Since this result is independent of distance and there is no evidence for coherent emission, it is concluded that the component is moving toward us at a relativistic speed with a Lorentz factor exceeding 4. Future observations should reveal superluminal separation of the components, as well as help in determining which components are undergoing relativistic motion.
Broderick John J.
Marscher Alan P.
No associations
LandOfFree
Distance-independent evidence for relativistic motion in the quasar NRAO 140 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Distance-independent evidence for relativistic motion in the quasar NRAO 140, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distance-independent evidence for relativistic motion in the quasar NRAO 140 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1687931