Coordinated multifrequency observations of the BL Lac objects Mrk 180, Mrk 421, and Mrk 501.
Abstract
The properties of three BL Lacertae objects, namely Mrk 180, Mrk 421, and Mrk 501, were investigated using data gathered at UV, X-ray, optical, and radio wave lengths. From each time frozen spectrum an inhomogeneous, relativistic jet model was computed. It is noted that the UV is the one spectral region where synchrotron emission is seen uncontaminated by galactic emission, self-Compton emission, or optical depth effects. A steepening synchrotron emission spectrum from the IR to the UV, which is characteristic of relativistic jets, is present in the jet model that was developed.
- Publication:
-
NASA Conference Publication
- Pub Date:
- December 1984
- Bibcode:
- 1984NASCP2349..143M
- Keywords:
-
- Astronomy;
- Astronomical Models;
- Bl Lacertae Objects;
- Emission Spectra;
- Flux Density;
- Galactic Nuclei;
- Galactic Radiation;
- Synchrotron Radiation;
- Heao 2;
- Iue;
- Photometry;
- Radio Astronomy;
- Telescopes;
- Ultraviolet Astronomy;
- X Ray Astronomy;
- BL Lacertae Objects:Elliptical Galaxies;
- BL Lacertae Objects:Optical Observations;
- BL Lacertae Objects:Radio Radiation;
- BL Lacertae Objects:UV Radiation;
- BL Lacertae Objects:X Rays;
- Elliptical Galaxies:BL Lacertae Objects;
- Radio Radiation:BL Lacertae Objects;
- UV Radiation:BL Lacertae Objects;
- X Rays:BL Lacertae Objects