H2CO ortho-to-para ratio in the protoplanetary disk HD 163296

Ortho-to-para (o/p) ratios of species like water, ammonia and formaldehyde (H2CO) are believed to encode information about the formation history of the molecule. Measurements of o/p ratios in protoplanetary disks could thus be used to constrain their physical and chemical histories. We present the f...

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Veröffentlicht in:	arXiv.org 2018-09
Hauptverfasser:	Guzman, V V, Oberg, K I, Carpenter, J, R Le Gal, C Qi, Pagues, J
Format:	Artikel
Sprache:	eng
Schlagworte:	Ammonia Disks Organic chemistry Physics - Astrophysics of Galaxies Planet formation Protoplanetary disks Protoplanets Spatial distribution Spin temperature
Online-Zugang:	Volltext
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