SIMBAD references

2013ApJ...775..110H - Astrophys. J., 775, 110 (2013/October-1)

The galactic spatial distribution of OB associations and their surrounding supernova-generated superbubbles.


Abstract (from CDS):

The Galactic spatial distribution of OB associations and their surrounding superbubbles (SBs) reflect the distribution of a wide range of important processes in our Galaxy. In particular, it can provide a three-dimensional measure not only of the major source distribution of Galactic cosmic rays, but also the Galactic star formation distribution, the Lyman continuum ionizing radiation distribution, the core-collapse supernova distribution, the neutron star and stellar black hole production distribution, and the principal source distribution of freshly synthesized elements. Thus, we construct a three-dimensional spatial model of the massive-star distribution based primarily on the emission of the H II envelopes that surround the giant SBs and are maintained by the ionizing radiation of the embedded O stars. The Galactic longitudinal distribution of the 205 µm N II radiation, emitted by these H II envelopes, is used to infer the spatial distribution of SBs. We find that the Galactic SB distribution is dominated by the contribution of massive-star clusters residing in the spiral arms.

Abstract Copyright:

Journal keyword(s): cosmic rays - H II regions - ISM: bubbles - open clusters and associations: general - stars: formation - supernovae: general - supernovae: individual: SN 2008hw

Simbad objects: 30

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