SIMBAD references

1994A&A...290..906H - Astronomy and Astrophysics, volume 290, 906-914 (1994/10-3)

A dusty nebula around the luminous blue variable candidate HD 168625.

HUTSEMEKERS D., VAN DROM E., GOSSET E. and MELNICK J.

Abstract (from CDS):

On the basis of narrow-band visible and near-infrared imagery as well as high-resolution spectroscopy, we report the discovery of a new LBV-type nebula around the B supergiant HD 168625. We find that it essentially consists of a dusty expanding shell from which seems to emerge a bipolar emission nebula, the whole embedded in a reflection nebulosity. The inner shell is stratified: the continuum emission arises beyond the ionized gas, and is possibly due to scattering of stellar light by large dust grains or to non-equilibrium dust emission. The unexpected presence of unidentified infrared emission bands (UIRs) in the spectrum of this object is also discussed. We finally report the non-detection of a comparable nebula around the nearby LBV HD 168607.

Abstract Copyright:

Journal keyword(s): luminous blue variable stars - circumstellar matter - emission nebulae - dust - HD 168625 - HD 168607

Simbad objects: 11

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2021.08.02-12:11:54

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