Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008newar..52..440d&link_type=abstract
New Astronomy Reviews, Volume 52, Issue 7-10, p. 440-444.
Astronomy and Astrophysics
Astronomy
4
97.60.-S, 97.10.Cv, 26.20.+F, 26.30.+K, 95.30.Cq, 98.38.-J
Scientific paper
Gamma-rays from decay of 26Al have established that nucleosynthesis is currently ongoing in the Galaxy and that nuclear reactions inside massive stars and their supernovae are the prime origins of this isotope, which is rather short-lived compared to time scales of Galactic evolution. The high-resolution spectrometer ‘SPI’ on INTEGRAL is carrying out a survey of the Galactic plane in 26Al gamma-rays, aiming to add spectroscopic details which constrain the kinematics of decaying 26Al nuclei. First results have shown the Galaxy-integrated gamma-ray line to be narrow and compatible with expected ISM velocities at or below 100 km/s. More exposure will allow increasingly more localized and spatially-resolved studies. Line centroid shifts in the inner Galaxy have been found to be consistent with the large-scale Galactic rotation. Here we add first results from spatially-resolved 26Al line spectroscopy along the Galactic plane.
Diehl Roland
Kretschmer Karsten
Lang Michael
Wang Wei
No associations
LandOfFree
26Al emission throughout the Galaxy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with 26Al emission throughout the Galaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 26Al emission throughout the Galaxy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-864381