IRAS 17516–2525: The Birth of a Planetary Nebula?
Part of the
International Astronomical Union / Union Astronomique Internationale
book series (IAUS, volume 131)
IRAS 17516–2525 is a cool object at infrared wavelengths between 1 and 60μm. Spectroscopy in the wavelength ranges 2 – 2.5μm and 3 – 3.5μm shows the presence of Brα, Brγ, Pfγ emission lines and of a weak C2H2 absorption band, all clearly associated with the IRAS source. At the infrared position a faint star with a visual magnitude of about 20 is found.
KeywordsMass Loss Rate C2H2 Absorption Expansion Velocity Central Star Planetary Nebula
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
© International Astronomical Union 1989