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Spectral and intensity variations of Galactic 26^Al emission
- Source :
- Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2009, 496, pp.713-724. ⟨10.1051/0004-6361/200811175⟩, Astronomy and Astrophysics-A&A, 2009, 496, pp.713-724. ⟨10.1051/0004-6361/200811175⟩
- Publication Year :
- 2009
- Publisher :
- arXiv, 2009.
-
Abstract
- Gamma-ray line emission from the radioactive decay of 26Al reflects nucleosynthesis in massive stars and supernovae. We use INTEGRAL 26Al measurements to characterize the distribution and characteristics of 26Al source regions throughout the Galaxy. We detect the 26Al line from the inner Galaxy at 28��significance. The line appears narrow, and we constrain broadening in the source regions to 5deg.<br />13 pages, 12 figures, accepted for the publication in A&A
- Subjects :
- High Energy Astrophysical Phenomena (astro-ph.HE)
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
abundances
[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
Galaxy: abundances
nucleosynthesis
FOS: Physical sciences
Astrophysics - High Energy Astrophysical Phenomena
ISM: abundances
nuclear reactions
gamma rays: observations
Subjects
Details
- ISSN :
- 00046361
- Database :
- OpenAIRE
- Journal :
- Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2009, 496, pp.713-724. ⟨10.1051/0004-6361/200811175⟩, Astronomy and Astrophysics-A&A, 2009, 496, pp.713-724. ⟨10.1051/0004-6361/200811175⟩
- Accession number :
- edsair.doi.dedup.....a3ae4963166e5220ab89c4b572cc474f
- Full Text :
- https://doi.org/10.48550/arxiv.0902.0211