Phosphorus in the Young Supernova Remnant Cassiopeia A

  title={Phosphorus in the Young Supernova Remnant Cassiopeia A},
  author={B.-C. Koo and Yong-Hyun Lee and Dae-Sik Moon and Sung-Chul Yoon and John C. Raymond},
  pages={1346 - 1348}
We Are Stardust Most of the universe's chemical elements were produced in stars, with the heaviest elements being produced when stars explode. Barlow et al. (p. 1343) used the Herschel Space Observatory to obtain submillimeter spectra of the Crab Nebula, the remains of a stellar explosion that was witnessed on Earth in 1054 AD, and detected the first evidence of a noble gas-containing molecular ion in space—36ArH+. Koo et al. (p. 1346) obtained near-infrared spectroscopic observations of the… 
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