SIMBAD references

2012MNRAS.421.1661M - Mon. Not. R. Astron. Soc., 421, 1661-1665 (2012/April-1)

The collimated outflows of the planetary nebula Hu 1-2: proper motion and radial velocity measurements.


Abstract (from CDS):

Hu 1-2 is a planetary nebula that contains an isolated knot located north-west of the main nebula, which could be related to a collimated outflow. We present a subarcsecond Hα+[N II] image and a high-resolution, long-slit spectrum of Hu 1-2 that allow us to identify the south-eastern counterpart of the north-western knot and to establish their high-velocity (>340 km/s), collimated bipolar outflow nature. The detection of the north-western knot in Palomar Observatory Sky Atlas (POSS) red plates allows us to carry out a proper motion analysis by combining three POSS red plates and two narrow-band Hα+[N II] CCD images, with a time baseline of ≃ 57 yr. A proper motion of 20±6 mas/yr along position angle 312°± 15° and a dynamical age of 1375–320+590 yr are obtained for the bipolar outflow. The measured proper motion and the spatio-kinematical properties of the bipolar outflow yield a lower limit of 2.7 kpc for the distance to Hu 1-2.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): ISM: jets and outflows - ISM: kinematics and dynamics - planetary nebulae: individual: Hu 1-2

Status at CDS:  

Simbad objects: 6

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