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2021ApJ...907..104B - Astrophys. J., 907, 104-104 (2021/February-1)
The decline and fall of the youngest planetary nebula.
BALICK B., GUERRERO M.A. and RAMOS-LARIOS G.
Abstract (from CDS):
The Stingray Nebula, a.k.a. Hen3-1357, appeared for the first time in 1990 when bright nebular lines and radio emission that had not been observed before were unexpectedly discovered. In the ensuing years, the nebula faded precipitously. We report changes in shape and large decreases in its nebular emission-line fluxes based on well-calibrated images obtained by the Hubble Space Telescope in 1996 and 2016. Hen3-1357 is now a "recombination nebula."
Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.
Journal keyword(s): Post-asymptotic giant branch stars - Planetary nebulae - Ionization
Simbad objects: 13
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