Gamma rays and interstellar gas in the Cepheus region: A new gamma-ray source?
| Autor: | I.A. Grenier, F. Lebrun |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Physics
Atmospheric Science Astrophysics::High Energy Astrophysical Phenomena Gamma ray Aerospace Engineering Astronomy Astronomy and Astrophysics Gamma ray spectra Gamma-ray astronomy Astrophysics law.invention chemistry.chemical_compound Geophysics chemistry Space and Planetary Science law Emissivity General Earth and Planetary Sciences Astrophysics::Galaxy Astrophysics Flare Carbon monoxide |
| Zdroj: | Advances in Space Research. 10:81-84 |
| ISSN: | 0273-1177 |
| Popis: | A recent CO survey of the Cepheus Flare region (100°≤1≤141°, 8°≤b≤22°) has allowed a detailed study of the diffuse gamma-ray emission and the gas content of this nearby region. The comparison of the HI and CO observations with the COS-B gamma-ray data yields estimates of the N(H 2 )/WCO ratio in this molecular complex and of the emissivity spectrum of the gas between 70 MeV and 5 GeV. A significant (3.9σ) point-like excess above the diffuse emission has been found and can be interpreted as a new gamma-ray source. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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