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Astron. Astrophys. 355, 1098-1102 (2000)


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A spatio-kinematic study of the interaction of the planetary nebula NGC 246 with the interstellar medium

C. Muthu 1, B.G. Anandarao 1 and S.R. Pottasch 2

1 Physical Research Laboratory, Navrangpura, Ahmedabad, India - 380009 (c.muthu@prl.ernet.in; anand@prl.ernet.in)
2 Kapteyn Astronomical Institute, Groningen University, Postbus 800, 9700 AV Groningen, The Netherlands (pottasch@astro.rug.nl)

Received 19 February 1999 / Accepted 13 December 1999

Abstract

Spatio-Kinematic observations were made on NGC 246 in the [OIII] 5007Å line using an Imaging Fabry-Perot Spectrometer. Evidence for the deceleration effect was found in the leading edge of the nebular shell, possibly due to its interaction with the interstellar medium. Further, we show that the [OIII] electron temperature derived from spectrographic data in the leading half is larger than that in the trailing half possibly due to the compressional heating.

Key words: ISM: planetary nebulae: individual: NGC 246 – ISM: kinematics and dynamics

Send offprint requests to: B.G. Anandarao

© European Southern Observatory (ESO) 2000

Online publication: March 21, 2000

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