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The unstable 06.5f?p star HD 148937 and its interstellar environment

Published online by Cambridge University Press:  04 August 2017

Claus Leitherer  and
Carlos Chavarría-k.
Claus Leitherer
Affiliation:
Landessternwarte Königstuhl D-6900 Heidelberg Germany
Carlos Chavarría-k.
Affiliation:
Landessternwarte Königstuhl D-6900 Heidelberg Germany

Extract

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The massive, early-type star HD 148937 (spectral type O6.5f?p) is surrounded by a unique set of nebulosities. A spherically symmetric Strömgren sphere (Radius ≃ 25 pc), an ellipsoidal filamentary nebulosity (semimajor axis ≃ 5 pc) interpreted as a stellar-wind-blown shell, and a bipolar nebular complex (semimajor axis ≃ 1 pc) with HD 148937 located in the apparent center of symmetry. Here we report on observations of these nebulosities (narrow-band CCD imaging, IDS spectrophotometry, high resolution (ΔV ≃ 7 km sec−1) spectroscopy) in an attempt to establish a consistent model of HD 148937 and its nebulosities.

Type
Mass Loss from Hot Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 447 - 448
Copyright
Copyright © Reidel 1987 

References

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