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High energy x-ray observations of bl lacertae objects
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dennis, B. R. Frost, K. J. Orwig, L. E. Crannell, C. J. Dolan, J. F. Coe, M. J. Engel, A. R. |
| Copyright Year | 1979 |
| Description | BL Lac objects are of considerable current interest both because they were recently realized to be a new class of objects and because they were found to be similar in many significant respects to QSOs and Seyfert Galaxies. Since at least one model for the X-ray emission predicts a flattening of the X-ray spectrum above a few keV, several of these sources were studied using the high energy scintillation telescopes on OSO-8 and Ariel-5. With the possible exception of Markaryan 421, only upper limits were obtained for the X-ray emission in the energy ranges 25-60 and 60-130 keV, thereby imposing constraints on any spectral breaks. |
| File Size | 632753 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790012772 |
| Archival Resource Key | ark:/13960/t6wx26890 |
| Language | English |
| Publisher Date | 1979-02-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Quasars Seyfert Galaxies Anions Emission Spectra Ariel 5 Satellite Telescopes Oso X Ray Spectra X Ray Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
