Mweelwe wa COM isomers wakabonwa mu ISM upa makani aayandika aatala a chemistry a physics yamagesi, kumamanino, makani aakaindi aama molecule.
Bunji bwa c-HCOOH acid mukati kakutontola buli buyo 6% bwa c-HCOOH isomer, mpawo nkwazwa tabuzyibidwe pe. Aawa tupandulula kubako kwa c-HCOOH mumakumbi aama molecule aasiya kwiinda mukunyonyoonwa akucheya kwa c-HCOOH a t-HCOOH muchiindi cha HCOOH ama molecule miingi loko mbuli HCO+ a NH3.
Twakabelesya nzila ya ab initio iyungizidwe kubala nguzu zikonzya kwaabwa zya c-HCOOH antoomwe a t-HCOOH nzila zyakutyoka/kuzungaana. Mweelwe wanyika yoonse uutacinci antoomwe azintu zipa kuti kube mitabi zyakabalilwa kweendelanya anjiisyo yachiimo chakusanduka anzila ya master equation muchiimo cha ISM.
HCOOH ilanyonyoonwa aawo noiswaangana a HCO+ muchiimo cha gasi kuti ipange ma isomer otatwe aa HC(OH)2+ cation. Ma cations aajanika kapati alakonzya kuswaangana ama molecule aambi aadumide mu ISM, mbuli NH3, munzila yabili kusandula c-HCOOH a t-HCOOH. Eeyi nzila ipandulula kupangwa kwa c-HCOOH mumakumbi aasiyidwe. Kulanga nzila eeyi, mweelwe wa c-HCOOH kweendelana a t-HCOOH wakali 25.7%.
Kupandulula 6% yazyintu zyakabonwa, twayeeya kuti tulange nzila imwi yakunyonyoona HCOOH cation. Nzila ya sequential acid-base (SAB) yakaambwa mumulimo ooyu ibikkilizya nzila yakufwambaana yama molecule iidumide kapati mu ISM.
Aboobo, HCOOH ilalangilwa kwiinda mukusanduka nkotwakakankaizya mubukkale bwamakumbi aamudima. Eeyi ninzila mpya mukati ka isomerism ya organic molecules mu ISM, eeyo iikonzya kusola kupandulula kujatana aakati ka isomers ya organic molecules iijanika mu ISM.
John Garcia, Isascen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Jesu Martin-Painde
Makani: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) Zilembedwe mbuli: arXiv:2301.07450 [astro-ph.GA] (naa eeyi version arXiv:2301.07450v1 [astro-ph.GA] ) Zyakachitika zyakachitika zyakalembwa a: Garcia la Concepnes [18] Wedday Mukubwe Kaangala 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Astrobiology, astrochemistry
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