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Detection of gamma rays with e greater than 300 gev from markarian 501
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Finley, J. P. Biller, S. Akerlof, C. W. Catanese, M. Carter-Lewis, D. A. Fegan, D. J. Quinn, J. Connaughton, V. Buckley, J. Cawley, M. F. |
| Copyright Year | 1996 |
| Description | The detection of gamma rays of energy greater than 300 GeV from the BL Lacertae object Mrk 501 demonstrates that extragalactic TeV emission is not unique to Mrk 421. During 66 hr of observations between 1995 March and July we measured an average flux of 8.1 +/- 1.4 x 10(exp -12) cm(exp -2)/s above 300 GeV, a flux that is only 20 percent of the average Mrk 421 flux. The new gamma-ray source has not been reported by the Compton Gamma Ray Observatory as an emitter of gamma rays at lower energies. There is evidence for variability on timescales of days. |
| File Size | 297267 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960020410 |
| Archival Resource Key | ark:/13960/t6547nc0t |
| Language | English |
| Publisher Date | 1996-01-10 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Gamma Ray Spectra Gamma Rays Luminous Intensity Active Galactic Nuclei Astronomical Observatories Bl Lacertae Objects Photon Beams Extragalactic Radio Sources Background Radiation Radio Sources Astronomy Markarian Galaxies Gamma Ray Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
