15N fractionation in infrared-dark cloud cores⋆

Author： Zeng S.   Jiménez-Serra I.   Cosentino G.   Viti S.   Barnes A. T.   Henshaw J. D.   Caselli P.   Fontani F.   Hily-Blant P.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|603|issue|A22-A22

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.603, Iss.issue, 2017-07, pp. : A22-A22

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Abstract

Context. Nitrogen is one of the most abundant elements in the Universe and its 14N/15N isotopic ratio has the potential to provide information about the initial environment in which our Sun formed. Recent findings suggest that the solar system may have formed in a massive cluster since the presence of short-lived radioisotopes in meteorites can only be explained by the influence of a supernova.

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