A study of the planetary nebula K3-82
Received 24 April 1997 / Accepted 5 August 1997
In this paper we present Fabry-Pérot high resolution spectroscopy in H , H , [O III ], and [N II ], optical low resolution spectroscopy spanning the usable range 4700-6800 Å, along with a broad band direct image in Gunn-red for the planetary nebula (PN) K3-82. K3-82 turned out to be highly symmetrical, seen most probably edge-on. Two point-symmetrical knots appear in the light of Gunn-red. These knots either represent concentrated emission regions or are part of an incomplete equatorial waist of K3-82. Our results for the systemic velocity is -62.4 5 km/s and for the average expansion velocity 30 5 km/s. For the distance we determined a minimum value of 2.5 kpc. The [S II ] ion indicates a very low density within the knots of K3-82.
Key words: planetary nebulae: individual: K3-82 (PN G093.3-00.9)
* Visiting Astronomer at the Centro Astronomico Hispano-Aleman, Calar Alto, operated by the Max-Planck-Institut für Astronomie, Heidelberg, jointly with the Spanish National Commission for Astronomy; and at the 1.83 m telescope of the University of Padova, Cima Ekar, Asiago, Italy.
Send offprint requests to: Walter.Saurer@uibk.ac.at
© European Southern Observatory (ESO) 1997
Online publication: March 26, 1998