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arxiv: astro-ph/0404594 · v1 · submitted 2004-04-30 · 🌌 astro-ph

Gamma-Ray Line Observations with RHESSI

classification 🌌 astro-ph
keywords linesrhessiannihilationgalaxygamma-rayobservationspositronsolar
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The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has been observing gamma-ray lines from the Sun and the Galaxy since its launch in February 2002. Here I summarize the status of RHESSI observations of solar lines (nuclear de-excitation, neutron capture, and positron annihilation), the lines of $^{26}$Al and $^{60}$Fe from the inner Galaxy, and the search for positron annihilation in novae.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. The Impact of the New $^{59}$Fe Decay Rates on $^{60}$Fe and $^{26}$Al Nucleosynthesis in Massive Stars

    astro-ph.HE 2026-05 conditional novelty 5.0

    New 59Fe beta-decay rates in non-rotating MESA models suppress 60Fe yields by 0.28 dex, yielding a Salpeter-IMF-integrated 60Fe/26Al flux ratio of 0.18 that matches the observed 0.184 ± 0.042.