Radio structure of the low excitation planetary nebula M 1-6

Details Radio structure of the low excitation planetary nebula M 1-6 Radio structure of the low excitation planetary nebula M 1-6

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...122..346k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 122, no. 1-2, June 1983, p. 346-348.

Astronomy and Astrophysics

Astronomy

3

Planetary Nebulae, Radio Astronomy, Red Giant Stars, Stellar Envelopes, Brightness Distribution, Evolution (Development), High Resolution, Stellar Winds

Scientific paper

High resolution radio observations of the compact planetary nebula M1-6 are reported. The angular size is measured to be 2arcsec.3 and a mass of ≡10-2 M_sun; is derived. The authors deduce an upper limit to the age of M1-6 of 103 yr making it one of the youngest planetary nebulae known. The nebula is slightly elongated showing high density and sharp outer boundaries along the two ends of the minor axis. This implies that the nebular shell is either ionization bounded or is interacting with the remnant circumstellar envelope of its red giant progenitor. The observed morphology suggests that M1-6 may develop into a bipolar nebula.

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