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Home All issues Volume 643 (November 2020) A&A, 643 (2020) A76 Full HTML
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Fig. 4

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Column density ratios of 14N- and 15N-containing species in the course of L-P collapse (step 2), compared with the values observed in pre-stellar cores through direct (filled symbols) and indirect (open symbols) measurements (see Fig. 4 and Appendix A.1).

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