Hāʻawi nā lakio i ʻike ʻia o nā isomers COM i ka ISM i ka ʻike waiwai e pili ana i ka kemika a me ka physics o nā kinoea a, ʻo ka mea hope loa, ka mōʻaukala o nā ao molekala.
ʻO ka nui o ka waikawa c-HCOOH i loko o ke kikowaena anu he 6% wale nō o ka nui o ka isomer c-HCOOH, a ʻaʻole i ʻike ʻia kona kumu. Maanei mākou e wehewehe ai i ke alo o c-HCOOH i loko o nā ao molekala ʻeleʻele ma o ka luku ʻia ʻana a me ka hōʻemi ʻana o c-HCOOH a me t-HCOOH i ka wā o nā pōʻaiapuni e pili ana i ka HCOOH a me nā molekala he nui loa e like me HCO+ a me NH3.
Ua hoʻohana mākou i kahi ala ab initio i hoʻonui ʻia e helu i ka hoʻolaha ikehu hiki no nā ala haki/kaʻapuni c-HCOOH a me t-HCOOH. Ua helu ʻia nā mea paʻa o ka helu honua a me nā kumu lālā ma muli o ke kumumanaʻo mokuʻāina hoʻololi a me ke ʻano o ka hoʻohālikelike haku ma lalo o nā kūlana ISM maʻamau.
Ua luku ʻia ʻo HCOOH ma hope o ka launa pū ʻana me HCO+ i loko o ke kahua kinoea e hana i ʻekolu isomers o ka cation HC(OH)2+. Hiki i nā cation maʻamau ke hana me nā molekala maʻamau ʻē aʻe i loko o ka ISM, e like me NH3, ma kahi hana ʻelua e hoʻololi iā c-HCOOH a me t-HCOOH. Hōʻike kēia ʻano hana i ka hoʻokumu ʻia ʻana o c-HCOOH i loko o nā ao molekala ʻeleʻele. Ke noʻonoʻo nei i kēia ʻano hana, ʻo ka hapa o c-HCOOH e pili ana iā t-HCOOH he 25.7%.
No ka wehewehe ʻana i ka 6% o nā nānā ʻana i hōʻike ʻia, ke manaʻo nei mākou e noʻonoʻo i kahi ʻano hana hou no ka luku ʻana i ka cation HCOOH. ʻO ke ʻano hana acid-base sequential (SAB) i manaʻo ʻia ma kēia hana e pili ana i kahi kaʻina hana wikiwiki o nā molekala i maʻa mau loa i ISM.
No laila, ʻo HCOOH paha e hele i ka hoʻololi a mākou i hāpai ai ma lalo o nā kūlana ao molekala ʻeleʻele. He ʻano hana hou kēia i loko o ka isomerism o nā molekala organik i loko o ka ISM, kahi e hoʻāʻo ai e wehewehe i nā pilina ma waena o nā isomers o nā molekala organik i loaʻa i ka ISM.
John Garcia, Ezraquen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Jesus Martin-Painde
Nā Kumuhana: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) I ʻōlelo ʻia ma ke ʻano he: arXiv:2301.07450 [astro-ph.GA] (a i ʻole kēia mana arXiv:2301.07450v1 [astro-ph.GA] ) Hoʻopaʻa i ka mōʻaukala e: Juan Garcia de la Concepción [v1] Pōʻakolu 18 Ianuali 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Astrobiology, astrochemistry
ʻO ka mea hoʻokumu pū o SpaceRef, lālā o ka Explorers Club, lālā mua o NASA, lālā o ka hui kahua, mea kākau moʻolelo lewa a me ka astrobiology a me ka mea piʻi mokulele.