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arXiv · 2210.07554

WHTZ 1: A high excitation Planetary Nebula not a gaseous cocoon from runaway star HD 185806

Quentin A. Parker·Pascal Le Dû·Andreas Ritter·Peter Goodhew·Sakib Rasool·Stephane Charbonnel·Olivier Garde·Lionel Mulato·Thomas Petit
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Abstract

We present evidence that the nebular cocoon and bow-shock emission nebula putatively and recently reported as deriving from the 9th magnitude "runaway" star HD 185806 is the previously discovered but obscure planetary nebula WHTZ 1 (Ra 7). It has a Gaia DR3 G~16 blue ionizing star at its geometric centre. We present imagery, spectroscopy, other data and arguments to support that this emission source is a high excitation Planetary Nebula not a stellar wind bow shock.

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Quentin A. Parker, Pascal Le Dû, Andreas Ritter, Peter Goodhew, Sakib Rasool, Stephane Charbonnel, Olivier Garde, Lionel Mulato, Thomas Petit. 2022-10-14. WHTZ 1: A high excitation Planetary Nebula not a gaseous cocoon from runaway star HD 185806. https://doi.org/10.1093/mnras%2Fstac3008

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