SIMBAD references

2003ApJ...598..349F - Astrophys. J., 598, 349-356 (2003/November-3)

Optical polarization observations of NGC 6231: evidence for a past supernova fingerprint.

FEINSTEIN C., MARTINEZ R., VERGNE M.M., BAUME G. and VAZQUEZ R.

Abstract (from CDS):

We present the first linear multicolor polarization observations for a sample of 35 stars in the direction of the Galactic cluster NGC 6231. We have found a complex pattern in the angles of the polarimetric vectors. Near the core of this cluster the structure shows a semicircular pattern that we have interpreted as a reorientation of the dust particles showing the morphology of the magnetic field. We propose that a supernova event occurred some time ago and produced a shock on the local ISM. We discuss in this paper independent confirmations of this event, both from the studies on the diffuse interstellar absorptions and the results of the pre-main-sequence stars. We also show that a supernova is supported by the evolutionary status of the cluster.

Abstract Copyright:

Journal keyword(s): ISM: Dust, Extinction - Galaxy: Open Clusters and Associations: Individual: NGC Number: NGC 6231 - Polarization - ISM: Supernova Remnants

Simbad objects: 47

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2021.05.08-10:27:55

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