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arXiv · astro-ph/9504059

HE 3-1475 AND ITS JETS

M. Bobrowsky·A. A. Zijlstra·E. K. Grebel·C. G. Tinney·P. te Lintel Hekkert·G. C. Van de Steene·L. Likkel·T. R. Bedding
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Abstract

We present spectra and high-resolution images taken with HST, the NTT, the VLA, and the MPIA/ESO 2.2m of the emission-line star He 3-1475 which we suggest is a post-AGB star. The star is at the origin of a 15-arcsec-long structure containing symmetrically opposing bright knots. The knots have radial velocities of about 500 km/s from the center of He 3-1475 to the ends of the jets. HST snapshots show that the core of He 3-1475 is unipolar with a star at the SE end and the nebula fanning out toward the NW. VLA observations show the presence of OH masers, which are positioned parallel to the optical jets. A model is proposed that accounts for all of the observational data. This unusual object may link the OH/IR stars having extreme outflow velocities with highly bipolar planetary nebulae.

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M. Bobrowsky, A. A. Zijlstra, E. K. Grebel, C. G. Tinney, P. te Lintel Hekkert, G. C. Van de Steene, L. Likkel, T. R. Bedding. 1995-04-19. HE 3-1475 AND ITS JETS. https://doi.org/10.1086/187937

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