SIMBAD references

2001ApJ...560L..83M - Astrophys. J., 560, L83-L86 (2001/October-2)

The origin of the Local Bubble.


Abstract (from CDS):

The Sun is located in a low-density region of the interstellar medium partially filled with hot gas that is the likely result of several nearby supernova explosions within the last 10 Myr. Here we use astrometric data to show that part of the Scorpius-Centaurus OB association was located closer to the present position of the Sun 5-7 Myr ago than today. Evolutionary synthesis models indicate that the association must have experienced ∼20 supernova explosions in the last 10-12 Myr, a prediction that is supported by the detection of four or five runaway stars escaping from it. The approximately six supernovae produced by the Lower Centaurus Crux subgroup are likely responsible for the creation of the Local Bubble.

Abstract Copyright:

Journal keyword(s): ISM: Bubbles - ISM: Structure - open clusters and associations: individual (Scorpius-Centaurus Association) - Galaxy: Solar Neighborhood - Stars: Distances - Stars: Supernovae: Individual: Name: Scorpius-Centaurus Association

Simbad objects: 11

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