2025ApJ...991...21F

Query : 2025ApJ...991...21F

2025ApJ...991...21F - Astrophys. J., 991, 21 (2025/September-3)

The Role of Rotation on the Yields of the Two γ-Ray Emitters 26Al and 60Fe Ejected by Massive Stars.

FALLA A., ROBERTI L., LIMONGI M. and CHIEFFI A.

Abstract (from CDS):

We show that the observed 60Fe/26Al flux ratio provided by the SPectrometer on INTEGRAL satellite (0.24 ± 0.04) can be reproduced only if rotation is taken into account in the computation of the stellar models. Predictions from nonrotating stellar models yield a significantly lower ratio (0.062), which is incompatible with the observed value. The adopted models and the associated yields are based on a combination of models already published by M. Limongi & A. Chieffi, complemented by additional ones fully consistent with the original grid, allowing a finer resolution in the initial rotational velocity distribution.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Stellar evolution - Nucleosynthesis - Nuclear astrophysics - Stellar nucleosynthesis - Explosive nucleosynthesis - Gamma-ray astronomy - Massive stars - Stellar rotation

Errata: erratum vol. 999, art. 270 (2026)

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 2

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Number of rows : 2
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 NGC 3293 OpC 10 35 50.3 -58 14 04           ~ 327 0
2 NGC 4755 OpC 12 53 39.2 -60 22 07           ~ 300 0

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