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The Astrophysical Journal, 553:L77L79, 2001 May 20 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary: L77
The Astrophysical Journal, 553:L77L79, 2001 May 20
2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.
PROTOSOLAR NITROGEN
Tobias Owen
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822; owen@ifa.hawaii.edu
Paul R. Mahaffy and Hasso B. Niemann
Laboratory for Atmospheres, Goddard Space Flight Center, Greenbelt, MD 20771
and
Sushil Atreya and Michael Wong
Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109
Received 2001 February 14; accepted 2001 April 10; published 2001 May 8
ABSTRACT
We have derived a value of in the Jovian atmosphere using data from the15 14 3
N/ N p (2.3 0.3) # 10
Galileo Probe Mass Spectrometer. Adopting this as the average value for nitrogen in the solar nebula leads to a
consistent interpretation of other measurements of nitrogen isotopes in the solar system, once nuclear evolution
in the Galaxy and ion-molecule reactions in the interstellar medium are taken into account. The result confirms
the assumption that atmospheric nitrogen on Earth was not delivered as N2 but that N2 was the dominant form
of nitrogen in the solar nebula.

  

Source: Atreya, Sushil - Department of Atmospheric, Oceanic and Space Science, University of Michigan

 

Collections: Physics