G25.5 + 0.2 - A very young supernova remnant or a galactic planetary nebula?

Details G25.5 + 0.2 - A very young supernova remnant or a galactic planetary nebula? G25.5 + 0.2 - A very young supernova remnant or a galactic planetary nebula?

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.244p..12w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 244, May 1, 1990, p. 12P-15P.

Astronomy and Astrophysics

Astronomy

11

Planetary Nebulae, Radio Sources (Astronomy), Stellar Evolution, Supernova Remnants, Infrared Astronomy Satellite, Ionized Gases, Radio Spectra, Stellar Mass, Very Large Array (Vla)

Scientific paper

G25.5 + 0.2, a radio source suggested by Cowan et al. (1989) to be a very young galactic supernova remnant, is more likely to be a planetary nebula. Its IRAS colors and fluxes and its radio spectrum and morphology are all consistent with the properties of planetary nebulae; its radio flux and distance imply a large mass of ionized gas, which is expected from a Type I planetary nebula lying in the galactic plane. Some definitive observations are suggested which should be able to determine wheter this interesting object is a planetary nebula or a supernova remnant.

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