Search for Faint Halos of Planetary Nebulae
Abstract
As part of a longer-term program to study planetary nebulae, the ESO 1.5 m telescope equipped with the IDS spectrometer has been used to search for emission from regions well outside the bright nebular shells. Results are reported for NGC 1535 and NGC 3132. In these cases the emission could be traced to radial distances of 45 arcsec and 55 arcsec, respectively. From the intensity distribution in these halos, the current mass of the envelope as well as the mass loss rate of the red giant progenitor star can be inferred. The results agree with current wind models for AGB stars.
- Publication:
-
Mitteilungen der Astronomischen Gesellschaft Hamburg
- Pub Date:
- 1986
- Bibcode:
- 1986MitAG..67..342B