IRAS06562-0337: the Iron-clad Nebula

Details IRAS06562-0337: the Iron-clad Nebula IRAS06562-0337: the Iron-clad Nebula

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.283l..41k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 283, Issue 2, pp. L41.

Astronomy and Astrophysics

Astronomy

3

Methods: Observational, Stars: Agb And Post-Agb, Circumstellar Matter, Planetary Nebulae: Individual: Iras06562-0337

Scientific paper

In this paper we report on spectroscopic observations that shed new light on the nature of the peculiar IRAS source 06562-0337. The high-excitation forbidden lines reported earlier have not been observed again, but the high signal-to-noise ratio of the new spectra led to the discovery of a multitude of faint emission lines almost exclusively from FeII, permitted and forbidden. In addition to making this a very rare object in its own right, this also opens a new perspective concerning the importance of this source in the context of late stellar evolution. With its history of variability in the spectrum, this object might be in the transitional phase between the AGB and a planetary nebula. In particular, its closest relatives can be found in the peculiar young PNe Th2-B and He2-25 and the post-AGB star IRAS17423-1755.

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