Evidence from >7By ago of presolar SiC in the Allende Curious Marie calcium–aluminium-rich inclusion | Nature Astronomy https://t.co/n0CVR0VkPx
قدیمیترین ماده جامد روی کره زمین دانشمندان اکنون پس از شکستن شهاب سنگی که سال ۱۹۶۹ در #استرالیا فرود آمده بود ذره کوچکی در آن کشف کردند که عمر آن حتی از خود #منظومه_شمسی هم بیشتر است. عمر این ذره توسط ایزوتوپهای نئون حدود ۷.۵ میلیارد سال تخمین زده شده است
RT @Dragonmaurizio: Mass spectrometers analysis conducted by @UW researchers confirmed the presence of Calcium–aluminium rich inclusion in…
Mass spectrometers analysis conducted by @UW researchers confirmed the presence of Calcium–aluminium rich inclusion in the Allende meteorite, categorizing the grains trapped within the mineral to be older than our solar system. (7 billion years old). https
RT @TeraKen0510: 備忘録:Allende CAI中に、sプロセスキャリアのプレソーラーグレインの痕跡を発見!? というニコちゃんとアマリさんの論文。。まだ消化しきれていないが、86Kr/82Kr比をベースにしたImplicationsが、オモロすぎる😃 (何を隠…
備忘録:Allende CAI中に、sプロセスキャリアのプレソーラーグレインの痕跡を発見!? というニコちゃんとアマリさんの論文。。まだ消化しきれていないが、86Kr/82Kr比をベースにしたImplicationsが、オモロすぎる😃 (何を隠そう、ホームランを打ち続けるニコちゃんの大ファン) https://t.co/xMVFb6WIDI https://t.co/aMEnKQGnFn
Evidence of presolar SiC in the Allende Curious Marie calcium–aluminium-rich inclusion https://t.co/AGx8b0JjS6
RT @AshleyJKing85: Presolar grains in the news again! Good excuse to remind you all that I have an @STFC_Matters PhD project available inv…
Presolar grains in the news again! Good excuse to remind you all that I have an @STFC_Matters PhD project available investigating how they evolved before ending up in the solar system. https://t.co/gl6Sc3E72D
Evidence of presolar SiC in the Allende Curious Marie calcium–aluminium-rich inclusion https://t.co/H7reAuq51v via @NatureAstronomy https://t.co/0mCGvAttOZ
RT @LucaPlanets: An interesting study on *very* early Solar System about some presolar material found in an unexpected place (because it sh…
RT @LucaPlanets: An interesting study on *very* early Solar System about some presolar material found in an unexpected place (because it sh…
RT @NatureAstronomy: Pravdivtseva et al. present evidence that presolar SiC grains were incorporated into fine-grained CAIs during their fo…
An interesting study on *very* early Solar System about some presolar material found in an unexpected place (because it should have been vaporised at those temperatures):
RT @NatureAstronomy: Pravdivtseva et al. present evidence that presolar SiC grains were incorporated into fine-grained CAIs during their fo…
Pravdivtseva et al. present evidence that presolar SiC grains were incorporated into fine-grained CAIs during their formation, surviving high-temperature parent body processing: https://t.co/8MrGncIxgL https://t.co/LnpYQ3Aniu