Active extragalactic sources - Nearly simultaneous observations from 20 centimeters to 1400 A

Details Active extragalactic sources - Nearly simultaneous observations from 20 centimeters to 1400 A Active extragalactic sources - Nearly simultaneous observations from 20 centimeters to 1400 A

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308...78l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 1, 1986, p. 78-92.

Astronomy and Astrophysics

Astronomy

180

Bl Lacertae Objects, Extragalactic Radio Sources, Microwave Spectra, Quasars, Spectrophotometry, Data Correlation, Infrared Astronomy Satellite, Iue, Polarized Electromagnetic Radiation, Spectral Energy Distribution

Scientific paper

IRAS, IUE, and ground-based optical, NIR, mm and submm, and radio observations obtained mainly on Apr. 9-23, 1983, are reported for 19 active extragalactic sources and eight control sources. The overall spectra of the compact active sources are shown to be well represented by continuous-curvature functions such as parabolas. The spectra are found to be consistent with models involving continuous particle injection (with synchrotron losses) or first-order Fermi acceleration (with escape and synchrotron losses), but not with models using relativistic Maxwellian electron distributions.

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