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

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

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mnras.347.1370g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 347, Issue 4, pp. 1370-1378.

Astronomy and Astrophysics

Astronomy

4

Line: Profiles, Stars: Individual: In Com, Ism: Kinematics And Dynamics, Planetary Nebulae: Individual: Lotr 5

Scientific paper

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.

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