A long trail behind the planetary nebula HFG1 (PK 136+05) and its precataclysmic binary central star V664 Cas
Mar, 20093 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 396 (2009) 1186
e-Print:
- 0903.2852 [astro-ph.GA]
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Abstract: (arXiv)
A deep wide-field image in the light of the Halpha+[N II] emission lines, of the planetary nebula HFG1 which surrounds the precataclysmic binary system V664 Cas, has revealed a tail of emission at least 20' long, at a position angle of 316deg. Evidence is presented which suggests that this is an ~10^5 y old trail of shocked material, left behind V664 Cas as it ejects matter whilst ploughing through its local interstellar media at anywhere between 29 and 59 km/s depending on its distance from the Sun.References(12)
Figures(1)