Deng meyakit a ratio da reng COM isomers keng ISM mamye lang maulagang impormasyun tungkul keng chemistry ampo physics da reng gas ampo, keng katataulian, ing history da reng molecular clouds.
Ing laman ning c-HCOOH acid keng marimlang core 6% yamu keng laman ning c-HCOOH isomer, at e pa balu ing penibatan na. keni mi ipaliwanag ing presensya ning c-HCOOH keng dark molecular clouds kapamilatan ning pangasira ampo pamagbawas ning c-HCOOH ampo t-HCOOH kareng siklo a maki kaugnayan keng HCOOH ampo kareng dakal a molecule antimo ing HCO+ ampo NH3.
Ginamit kaming extended ab initio approach para makalkula ing potential energy distribution para keng c-HCOOH ampo t-HCOOH breakdown/cycling pathways. Deng global rate constants ampo reng branching factors mekwa la base keng transition state theory ampo ing porma ning master equation lalam ning tipikal a kundisyun ning ISM.
Ing HCOOH masira ya keng pamakipag-ugnayan keng HCO+ keng gas phase para maging atlung isomers ning HC(OH)2+ cation. Deng peka karaniwan a cations malyari lang makipag react kareng aliwang karaniwan a molecule keng ISM, antimo ing NH3, keng kaduang lakbang para ibayu ing c-HCOOH ampo ing t-HCOOH. Ing mekanismo ayni magpaliwanag ya keng pamaglalang ning c-HCOOH keng dark molecular clouds. nung isipan me ining mekanismo, ing proporsiun ning c-HCOOH relatibu keng t-HCOOH 25.7% ya.
Para apaliwanag ing 6% da reng obserbasyun a mibalita, mumuntalan mi ing pamagkonsidera king karagdagang mekanismo para king pangasira ning HCOOH cation. Ing sequential acid-base (SAB) mechanism a mipanukala kening obra ayni sasakupan ne ing mabilis a prosesu da reng molecule a karaniwan keng ISM.
Uli na niti, ing HCOOH malyari yang dumalan keng pamagbayu a kekaming mipanukala keng dark molecular cloud a kundisyun. Iti metung yang bayung paralan kilub ning isomerism da reng organic a molecule keng ISM, na malyaring subukan nang ipaliwanag ing relasyun da reng isomer da reng organic a molecule a mayayakit keng ISM.
John Garcia, Isascen 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) Cited as: arXiv:2301.07450 [astro-ph.GA] (o ining bersion arXiv:2301.07450v1 [astro-ph.GA] ) Commit history by: Garciación la Concepción [118] Eneru 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Astrobiology, astrochemistry
Co-founder ning SpaceRef, miyembru ning Explorers Club, dating miyembru ning NASA, miyembru ning field team, space and astrobiology reporter ampo climber on the run.