The empirical difference between radio-loud and radio-quiet quasars
- California Univ., Santa Barbara (USA) Haystack Observatory, Westford, MA (USA) Paris Observatoire, Meudon (France)
Lobe-dominant radio quasars and radio-quiet quasars have very similar spectral energy distributions in the infrared through ultraviolet spectral regions. The former class show flat-spectrum radio synchrotron cores as well. Are the radio cores the self-absorbed tails of nonthermal infrared sources, or are they separate components with properties expected for misdirected relativistic jets Morphologically, do the spectra peak in the millimeter region as expected under the first hypothesis, or do they show deep minima there as expected under the second Centimeter, infrared, and new millimeter observations show that the second hypothesis is correct for all six known IRAS-detected lobe-dominant quasars. 20 refs.
- OSTI ID:
- 7041665
- Journal Information:
- Astrophysical Journal; (USA), Vol. 353; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Excess 2 centimeter emission - a new continuum component in the spectra of radio-quiet quasars
Exploratory X-ray monitoring of luminous radio-quiet quasars at high redshift: Initial results
Related Subjects
GENERAL PHYSICS
QUASARS
INFRARED RADIATION
COSMIC RADIO SOURCES
ENERGY SPECTRA
MORPHOLOGY
PLASMA JETS
SPECTROSCOPY
ULTRAVIOLET SPECTRA
ELECTROMAGNETIC RADIATION
RADIATIONS
SPECTRA
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources