HE 3-1475 AND ITS JETS
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.
Cite
@article{arxiv.astro-ph/9504059,
title = {HE 3-1475 AND ITS JETS},
author = {M. Bobrowsky and A. A. Zijlstra and E. K. Grebel and C. G. Tinney and P. te Lintel Hekkert and G. C. Van de Steene and L. Likkel and T. R. Bedding},
journal= {arXiv preprint arXiv:astro-ph/9504059},
year = {2009}
}
Comments
14 pages, uu-encoded postcript. 6 figures available on request from Matt Bobrowski ([email protected])