Journal Article

The bipolarity of the highest Galactic latitude planetary nebula, LoTr 5 (PN G339.9+88.4), around IN Com

M. F. Graham, J. Meaburn, J. A. López, D. J. Harman and A. J. Holloway

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 347, issue 4, pages 1370-1378
Published in print February 2004 | ISSN: 0035-8711
Published online February 2004 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2004.07342.x
The bipolarity of the highest Galactic latitude planetary nebula, LoTr 5 (PN G339.9+88.4), around IN Com

Show Summary Details

Preview

Abstract

High-resolution, spatially resolved, long-slit profiles of the [O iii] 5007-Å emission line of the highest Galactic latitude planetary nebula, LoTr 5, have been obtained with the Manchester Echelle Spectrometer (MES-SPM) on the San Pedro Martir (SPM) 2.1-m telescope. These are compared with a deep narrow-band [O iii] 5007-Å mosaic image obtained with the same system.

This faint nebula, at a distance of ⩾500 pc from the Galactic plane, is found to be expanding asymmetrically. Some form of bipolar structure is suggested by modelling the position–velocity arrays of line profiles and the new [O iii] 5007-Å image. Interestingly, the modelled bipolar axis is nearly perpendicular to the orbital plane of the IN Com binary system; this supports the theories which predict that binary systems play a part in shaping the outflow.

Evidence for interaction of the envelope of LoTr 5 with its local interstellar medium is also considered.

Keywords: line: profiles; stars: individual: IN Com; ISM: kinematics and dynamics; planetary nebulae: individual: LoTr 5

Journal Article.  3849 words.  Illustrated.

Subjects: Astronomy and Astrophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.