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High-resolution spectrum of cygnus x-1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jacobson, A. S. Mahoney, W. A. Wheaton, W. A. Ling, J. C. |
| Copyright Year | 1985 |
| Description | A high resolution spectrum of Cygnus X-1 in the 45 to 600 keV range is presented. The measurement was made by the HEAO 3 gamma ray spectrometer during 82 days in the fall of 1979 and spring of 1980, when the source was in its normal low state. Results of a search for narrow emission lines from the source are reported. The spectrum shows no significant narrow features. The 3 delta upper limit to a narrow 511 keV annihilation line is 3 x 0.0001 photons/sq cm/s. There is also no evidence in HEAO 3 broadband data above 500 keV for the broad annihilation feature observed by HEAO 1. |
| File Size | 81565 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850025643 |
| Archival Resource Key | ark:/13960/t09w5b34v |
| Language | English |
| Publisher Date | 1985-08-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Gamma Ray Spectra Gamma Rays Celestial Bodies Radiation Spectra High Resolution Emission Spectra Spectrometers Heao 3 Heao Photons Line Spectra Periodic Variations Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
