Zviyero zvakaonekwa zveCOM isomers muISM zvinopa ruzivo rwakakosha nezvekemikari nefizikisi yemagasi uye, pakupedzisira, nhoroondo yemakore emamorekuru.
Zviri mukati me c-HCOOH acid mu cold core i6% chete yezviri mukati me c-HCOOH isomer, uye kwayakatangira hazvizivikanwe. Pano tinotsanangura kuvapo kwe c-HCOOH mumakore matema emamorekuru nekuparadzwa nekuderedzwa kwe c-HCOOH ne t-HCOOH panguva yekufamba kwe HCOOH nemamorekuru akawanda akadai se HCO+ ne NH3.
Takashandisa nzira yakareba ye ab initio kuverenga kugoverwa kwesimba kunogona kuitika kwe c-HCOOH uye t-HCOOH breakdown/cycling pathways. Global rate constants uye branching factors zvakaverengerwa zvichibva pa transition state theory uye chimiro che master equation pasi pemamiriro ezvinhu akajairika e ISM.
HCOOH inoparadzwa kana yasangana neHCO+ muchikamu chegasi kuti igadzire ma isomers matatu eHC(OH)2+ cation. Ma cations akajairika anogona kuita pamwe nemamwe mamorekuru akajairika muISM, akadai seNH3, muchikamu chechipiri chekushandura c-HCOOH net-HCOOH. Iyi nzira inotsanangura kuumbwa kwec-HCOOH mumakore matema emamorekuru. Tichifunga nezve nzira iyi, chikamu che c-HCOOH chichienzaniswa net-HCOOH chaive 25.7%.
Kuti titsanangure zvakaonekwa ne6%, tinokurudzira kufunga nezveimwe nzira yekuparadzwa kweHCOOH cation. Maitiro e sequential acid-base (SAB) akataurwa mubasa iri anosanganisira maitiro ekukurumidza emamorekuru akajairika muISM.
Saka, HCOOH ingangove ichichinja sezvatakakurudzira pasi pemamiriro erima emamorekuru. Iyi inzira itsva mukati me isomerism yemamorekuru eorganic muISM, iyo inogona kuedza kutsanangura hukama huripo pakati pemaisomers emamorekuru eorganic anowanikwa muISM.
John Garcia, Ezraquen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Jesus Martin-Painde
Zvidzidzo: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) Yakataurwa se: arXiv:2301.07450 [astro-ph.GA] (kana iyi vhezheni arXiv:2301.07450v1 [astro-ph.GA] ) Nhoroondo yekuzvipira na: Juan Garcia de la Concepción [v1] Chitatu 18 Ndira 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Astrobiology, astrochemistry
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