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

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

2009-03-16

arxiv.org/abs/0903.2852v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

3 pages, 1 figure, accepted for publication in MNRAS

Scientific paper

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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