arxiv: 0903.2852 · v1 · pith:4SFCPVZXnew · submitted 2009-03-16 · 🌌 astro-ph.GA

A long trail behind the planetary nebula HFG1 (PK 136+05) and its precataclysmic binary central star V664 Cas

P. Boumis (1) , J. Meaburn (2) , M. Lloyd (2) , S. Akras (1 , 3) ((1) Institute of Astronomy & Astrophysics , National Observatory of Athens , Greece , (2) Jodrell Bank Centre for Astrophysics

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University of Manchester UK (3) Astronomical Laboratory Department of Physics University of Patras Greece)

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keywords v664behindbinaryemissionhfg1longnebulaplanetary

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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.

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A long trail behind the planetary nebula HFG1 (PK 136+05) and its precataclysmic binary central star V664 Cas

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