1996A&AS..120C.335K

Query : 1996A&AS..120C.335K

1996A&AS..120C.335K - Astron. Astrophys., Suppl. Ser., 120C, 335-338 (1996/December-3)

Modelling the 1.8MeV sky: Tests for spiral structure.

KNOEDLSEDER J., PRANTZOS N., BENNETT K., BLOEMEN H., DIEHL R., HERMSEN W., OBERLACK U., RYAN J. and SCHOENFELDER V.

Abstract (from CDS):

COMPTEL imaging analysis revealed a patchy, asymmetric distribution of diffuse 1.8MeV emission along the Galactic plane, which is attributed to the decay of radioactive 26Al in the ISM. If massive stars were the major source of Galactic 26Al, the 1.8MeV emission should be asymmetric and trace the spiral arms of the Galaxy, presumed site of massive star formation. Using model fits, we indeed find weak evidence in the COMPTEL data that the observed 1.8MeV emission is at least partly confined to spiral arms. We derive a total Galactic 26Al mass of 2.5M☉ from which at least 0.7M☉ can be attributed to massive stars.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observation - nucleosynthesis - Galaxy: structure

CDS comments: Special Issue "3rd Compton Symposium"

Simbad objects: 2

goto View the references in ADS

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 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
2 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0

To bookmark this query, right click on this link: simbad:objects in 1996A&AS..120C.335K and select 'bookmark this link' or equivalent in the popup menu