Ko ngā ōwehenga nui kua kitea o ngā isomers COM i roto i te ISM e whakarato ana i ngā mōhiotanga whai hua mō te matū me te ahupūngao o ngā hau, ā, i te mutunga, te hītori o te kapua ngota.
Ko te nui o te waikawa c-HCOOH i roto i te pūtake matao he 6% noa iho o te nui o te isomer c-HCOOH, kāore anō kia mōhiotia te pūtake mai. I konei ka whakamāramahia e mātou te noho mai o te c-HCOOH i roto i ngā kapua ngota pouri mā te whakangaromanga me te aukati i te hanganga o te c-HCOOH me te t-HCOOH i te wā o te tukanga huringa e uru ana te HCOOH me ngā ngota tino nui pērā i te HCO+ me te NH3.
I whakamahia e mātou tētahi tikanga ab initio matatau hei tatau i te tohatoha pūngao pūmanawa o ngā ara pakaru/hanganga huringa c-HCOOH me te t-HCOOH. I tatauhia ngā pūmau tere ā-ao me ngā tauwehenga peka i runga i te ariā āhua whakawhiti me te āhua o te whārite matua i raro i ngā āhuatanga ISM noa.
Ko te whakangaromanga o te HCOOH mā te tauhohenga ki te HCO+ i te āhua hau ka hua ake he toru ngā isomers o te cation HC(OH)2+. Ka taea e ngā cation tino noa te tauhohe ki ētahi atu ngota ISM noa pērā i te NH3 i te taahiraa tuarua hei hanga anō ki te c-HCOOH me te t-HCOOH. Mā tēnei tikanga ka whakamāramahia te hanganga o te c-HCOOH i roto i ngā kapua ngota pouri. Mā te whakaaro ki tēnei tikanga, ko te ōwehenga o te c-HCOOH e pā ana ki te t-HCOOH he 25.7%.
Hei whakamārama i te 6% i kitea, ka whakaaro mātou kia whakaarohia ētahi atu tikanga mō te whakangaromanga o te kationa HCOOH. Ko te tikanga waikawa-pūtake raupapa (SAB) e whakaarohia ana i roto i tēnei mahi e uru ana ki tētahi tukanga tere o ngā ngota e tino kitea ana i roto i te ISM.
Nō reira, tera pea ka pāngia te HCOOH e te panonitanga i whakaarohia e mātou i raro i ngā āhuatanga kapua ngota pōuri. He huarahi hou tēnei i roto i te isomerization o ngā ngota waro i roto i te ISM, e ngana ana pea ki te whakamārama i ngā whanaungatanga i waenga i ngā isomers o ngā ngota waro e kitea ana i roto i te ISM.
John Garcia, Isascun Jimenez-Serra, Jose Carlos Corchado, Germaine Molpeceres, Antonio Martinez-Henares, Victor M. Rivilla, Laura Colzi, Jesus Martin-Painted
Kaupapa: Te Ahupūngao Matatini o te Ao (astro-ph.GA), Te Ahupūngao Matū (physics.chem-ph) I whakahuatia ko: arXiv:2301.07450 [astro-ph.GA] (tēnei putanga rānei arXiv:2301.07450v1 [astro-ph.GA] ) Te hītori i tuhia e: Juan Garcia de la Concepción [v1] Wenerei 18 Hanuere 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Te Ahupūngao Matatini, te matū matatini
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