Extreme 13C,15N and 17O isotopic enrichment in the young planetary nebula K4-47
Extreme 13C,15N and 17O isotopic enrichment in the young planetary nebula K4-47
Extreme <sup>13</sup>C,<sup>15</sup>N and <sup>17</sup>O isotopic enrichment in the young planetary nebula K4-47, Published online: 19 December 2018; doi:10.1038/s41586-018-0763-1
Millimetre-wavelength observations of the bipolar planetary nebula K4-47 show very high abundances of the rare isotopes 13C, 15N and 17O, providing clues about the possible origin of the nebula.
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