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| Query : 2022ApJ...928...19V |
2022ApJ...928...19V - Astrophys. J., 928, 19-19 (2022/March-3)
Unresolved Sources Naturally Contribute to PeV Gamma-Ray Diffuse Emission Observed by Tibet ASγ.
VECCHIOTTI V., ZUCCARINI F., VILLANTE F.L. and PAGLIAROLI G.
Abstract (from CDS):
The Tibet ASγ experiment provided the first measurement of the total diffuse gamma-ray emission from the Galactic disk in the sub-PeV energy range. Based on the analysis of TeV sources included in the H.E.S.S. Galactic Plane Survey catalog, we predict the expected contribution of unresolved pulsar-powered sources in the two angular windows of the Galactic plane observed by Tibet ASγ. We show that the sum of this additional diffuse component due to unresolved sources and the truly diffuse emission, due to cosmic-ray interaction with the interstellar medium, well saturates the Tibet data, without the need to introduce a progressive hardening of the cosmic-ray spectrum toward the Galactic center.
Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.
Journal keyword(s): Gamma-ray astronomy
Simbad objects: 5
| Number of rows : 5 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M 1 | SNR | 05 34 31.8 | +22 01 03 | ~ | 6516 | 1 | |||||
| 2 | NAME Vela Jr SN | SNR | 08 52.0 | -46 20 | ~ | 507 | 2 | |||||
| 3 | ESO 134-11 | HII | 14 40 29 | -62 38.7 | ~ | 585 | 1 | |||||
| 4 | SNR G347.3-00.5 | SNR | 17 12 27 | -39 41.2 | 12.27 | ~ | 761 | 1 | ||||
| 5 | NAME Galactic Center | reg | 17 45 39.60213 | -29 00 22.0000 | ~ | 16269 | 0 |
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