Ivyiyumviro vy’ibiharuro vy’ibice vy’umubiri vyitwa COM isomers muri ISM biratanga amakuru y’agaciro ku bijanye n’ubuhinga bwa shimi n’ubuhinga bwa fizike bw’imiyaga, be n’amateka y’ibicu vy’ibihimba vy’umubiri.
Ivyo aside c-HCOOH iri mu mfuruka y’ubukonje ni 6% gusa vy’ivyo isomere ya c-HCOOH irimwo, kandi inkomoko yayo ntiramenyekana. Aha turasigura ukuntu c-HCOOH iri mu bicu vy’amamolekule vyirabura biciye mu gusenyura no kugabanya c-HCOOH na t-HCOOH mu gihe c’ingendo zirimwo HCOOH n’amamolekule menshi cane nka HCO+ na NH3.
Twakoresheje uburyo bwa ab initio bwagutse kugira ngo tubare ubushobozi bwo gusangira inguvu ku nzira z’ugusenyuka/gugendagenda kw’inguvu za c-HCOOH na t-HCOOH. Ivyiyumviro vy’igipimo c’isi yose n’ibintu vy’amashami vyaharuwe bishingiye ku ciyumviro c’intara y’ihinduka n’uburyo bw’ingero nyamukuru mu bihe bisanzwe vya ISM.
HCOOH irasenyuka iyo ikoranye na HCO+ mu gice c’umuyagankuba kugira ngo ikore isomeres zitatu z’ivyo bita HC(OH)2+ cation. Ivyo bihimba vy’umubiri bimenyerewe cane bishobora gukorana n’ibindi bihimba bimenyerewe muri ISM, nka NH3, mu ntambwe ya kabiri yo guhindura c-HCOOH na t-HCOOH. Ubwo buryo burasigura ukuntu c-HCOOH ihinguranywa mu bicu vy’ibihimba vy’umubiri vyirabura. Hakurikijwe ubu buryo, igitigiri ca c-HCOOH kigereranywa na t-HCOOH cari 25,7%.
Kugira ngo dusigure 6% vy’ivyo twabonye vyavuzwe, turasaba ko twokwiyumvira uburyo bwo kwongerako bwo gusenyura cation ya HCOOH. Uburyo bw’urutonde rw’aside-base (SAB) bwashikirijwe muri iki gikorwa bujanye n’urugendo rwihuta rw’ibihimba vy’umubiri bimenyerewe cane muri ISM.
Ku bw’ivyo, HCOOH irashobora guca mu mpinduka twasavye mu bihe vy’ibicu vy’amamolekule vy’umwiza. Ubu ni uburyo bushasha mu bijanye n’isomerisme y’ibinyabuzima biri muri ISM, bushobora kugerageza gusigura isano hagati y’ibinyabuzima biri muri ISM.
Yohani Garsiya, Isascen Jimenez-Serra, Yoze Karlosi Kolchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Korizi, Yesu Martin-Painde
Ivyigwa: Fizike y’inyenyeri (astro-ph.GA), Fizike y’imiti (physical.chem-ph) Vyavuzwe nk’ibi: Mukakaro 2023 11:45:25 UTC (1909 KB) Ivy'ibinyabuzima vyo mu nyenyeri, ubuhinga bwo mu nyenyeri
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