Upper limit for the D₂H⁺ ortho-to-para ratio in the prestellar core 16293E (CHESS)⋆⋆⋆

Author： Vastel C. Caselli P. Ceccarelli C. Bacmann A. Lis D. C. Caux E. Codella C. Beckwith J. A. Ridley T.

E-ISSN： 1432-0746|547|issue|A33-A33

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.547, Iss.issue, 2012-10, pp. : A33-A33

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