Saray naobserbaan ya ratio na COM isomers ed ISM et mangiiter na makanakanan impormasyon nipaakar ed chemistry tan physics na saray gas tan, diad kaunoran, say history na molecular clouds.
Say karga na c-HCOOH acid ed ambetel ya utek et 6% labat na karga na c-HCOOH isomer, tan ag ni amta so nanlapuan to. Dia et ipaliwawa mi so kiwawala na c-HCOOH ed ambilunget iran lurem na molekula diad panamegley na pakaderal tan pambawas na c-HCOOH tan t-HCOOH legan na saray siklo ya mangilalanor ed HCOOH tan saray dakel a molekula a singa say HCO+ tan NH3.
Angusar kami na pinalaknab ya ab initio ya paraan pian nakalkula so potensyal ya inkaapag-apag na enerhiya parad c-HCOOH tan t-HCOOH breakdown/cycling pathways. Saray global rate constants tan branching factors et kinalkula base ed transition state theory tan say porma na master equation diad silong na tipikal iran kondisyon na ISM.
Say HCOOH et naderal no mibabali ed HCO+ diad gas phase pian manporma na taloran isomer na HC(OH)2+ cation. Saray sankabaloan ya cations et nayarin mireak ed arum ya kaslakan ya molekula ed ISM, singa say NH3, diad komaduan kundang pian nauman so c-HCOOH tan t-HCOOH. Sayan mekanismo so mangipapaliwawa ed inkaporma na c-HCOOH ed ambilunget iran lurem na molekula. No ikonsidera iyan mekanismo, say proporsyon na c-HCOOH no ikompara ed t-HCOOH et 25.7%.
Pian nipaliwawa so nireport ya 6% na saray obserbasyon, iproproponin ikonsidera so kaaruman a mekanismo parad pakaderal na HCOOH cation. Say sequential acid-base (SAB) ya mekanismo ya inproponin sayan kimey et mangilalanor na maples ya proseso na saray molekula ya kaslakan ed ISM.
Kanian, say HCOOH et posiblin ondalan ed transisyon ya inproponin mi diad silong na dark molecular cloud conditions. Saya so balon paraan ed loob na isomerism na saray organikon molekula ed ISM, ya nayarin mansalitan mangipaliwawa ed saray siglaotan na saray isomer na organikon molekula ya naromog ed ISM.
John Garcia, Ezraquen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Jesus Martin-Painde
Subjects: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) Inaon bilang: arXiv:2301.07450 [astro-ph.GA] (odino sayan bersion arXiv:2301.07450v1 [astro-ph.GA] ) Commit history nen: Garcia la Concepcion [18] Wedday Dev Enero 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Astrobiology, astrochemistry
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