SIMBAD references

2006ApJ...640L..51A - Astrophys. J., 640, L51-L54 (2006/March-3)

The magnetic field strength in the wall of the Local Bubble toward l, b ~ 300°, 0°.


Abstract (from CDS):

We present polarization measurements in the region around l, b = 300°, 0°, toward stars with well-determined distances, primarily in the range 40-200 pc. We argue that these observations trace polarization caused by dust in the wall of the Local Bubble (LB). Using a Chandrasekhar-Fermi analysis, we derive a plane-of-the-sky magnetic field strength, in the wall of the LB in this direction, of B=8+5–3µG, equivalent to a magnetic pressure of PB/k~1.8x104 K/cm3. This pressure equals, to within the uncertainties, that in the bubble interior, as derived from EUVE observations, assuming collisional ionization equilibrium. Such a magnetic field could help us explain the observed low O VI column density associated with the LB wall.

Abstract Copyright:

Journal keyword(s): ISM: Individual: Name: Local Bubble - Magnetic Fields - Polarization

Status at CDS:  

Simbad objects: 13

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