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An Experimental Investigation of the Synthesis of Complex Organic Molecules in Interstellar Analog Ices

星际模拟冰中复杂有机分子合成的实验研究

基本信息

批准号：
1800975
负责人：
Ralf Kaiser
金额：
$ 40.11万
依托单位：
University of Hawaii
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-09-01 至 2022-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1800975&HistoricalAwards=false
关键词：
Experimental Investigation Synthesis Complex Organic

项目摘要

This research project will investigate the formation of complex organic molecules (COMs) containing carbon, hydrogen, oxygen, and nitrogen atoms on interstellar ice analog samples that are held at ultra-high vacuum, low temperatures, and exposure to ionizing radiation --- laboratory conditions that simulate the environment of interstellar space. Results from the study will allow astronomers to understand how COMs are formed in interstellar clouds and the level of chemical complexity that can be built under the extreme conditions of interstellar space. This project will train graduate and undergraduate students, including ones from groups that are underrepresented in science, in advanced techniques of laboratory astrophysics research. The research team will also participate in training workshops for local high school teachers to help incorporate research activities into high school teaching.The research team will explore the synthesis of six key classes of COMs --- aldehydes, ketones, carboxylic acids, esters, amides, and isocyanates --- on interstellar ice analogs. They will do so by exposing interstellar ice analog samples to Lyman alpha radiation in an ultra-high vacuum space simulation chamber. The radiation energies and low temperatures in the chamber will approach those found in interstellar clouds, and the molecules produced in the experiment will be characterized in a highly complementary manner using mass spectrometry as well as infrared, Raman, and ultraviolet-visible spectroscopy. The project will support graduate and undergraduate students, and it will help expose high school classrooms to advanced research.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该研究项目将研究在超高真空、低温和暴露于电离辐射的星际冰模拟样品上形成含有碳、氢、氧和氮原子的复杂有机分子（COMs）--模拟星际空间环境的实验室条件。这项研究的结果将使天文学家能够了解COMs是如何在星际云中形成的，以及在星际空间的极端条件下可以建立的化学复杂性水平。该项目将培训研究生和本科生，包括来自科学界代表性不足的群体的学生，掌握实验室天体物理学研究的先进技术。研究小组还将参加为当地高中教师举办的培训讲习班，以帮助将研究活动纳入高中教学。研究小组将探索在星际冰类似物上合成六类关键的COM-醛，酮，羧酸，酯，酰胺和异氰酸酯。他们将通过在超高真空空间模拟室中将星际冰模拟样品暴露于莱曼α辐射来实现。室内的辐射能量和低温将接近星际云中的辐射能量和低温，实验中产生的分子将使用质谱法以及红外、拉曼和紫外-可见光谱法以高度互补的方式进行表征。该项目将支持研究生和本科生，并将有助于高中课堂接触先进的研究。该奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

期刊论文数量（24）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

On the Formation of the Popcorn Flavorant 2,3‐Butanedione (CH 3 COCOCH 3 ) in Acetaldehyde‐Containing Interstellar Ices

爆米花香料2,3丁二酮(CH 3 COCOCH 3 )在乙醛星际冰中的形成

DOI：
10.1002/cphc.202000116
发表时间：
2020
期刊：
ChemPhysChem
影响因子：
2.9
作者：
Kleimeier, N. Fabian;Turner, Andrew M.;Fortenberry, Ryan C.;Kaiser, Ralf I.
通讯作者：
Kaiser, Ralf I.

An Experimental and Theoretical Investigation into the Formation of Ketene (H 2 CCO) and Ethynol (HCCOH) in Interstellar Analog Ices

星际模拟冰中乙烯酮 (H 2 CCO) 和乙醇 (HCCOH) 形成的实验和理论研究

DOI：
10.3847/1538-4357/ab8dbc
发表时间：
2020
期刊：
The Astrophysical Journal
影响因子：
0
作者：
Turner, Andrew M.;Koutsogiannis, Andreas S.;Kleimeier, N. Fabian;Bergantini, Alexandre;Zhu, Cheng;Fortenberry, Ryan C.;Kaiser, Ralf I.
通讯作者：
Kaiser, Ralf I.

Rapid Radical–Radical Induced Explosive Desorption of Ice-coated Interstellar Nanoparticles

冰衣星际纳米粒子的快速自由基-自由基诱导爆炸解吸

DOI：
10.3847/1538-4357/ac116a
发表时间：
2021
期刊：
The Astrophysical Journal
影响因子：
0
作者：
Zhu, Cheng;Bergantini, Alexandre;Singh, Santosh K.;Abplanalp, Matthew J.;Kaiser, Ralf I.
通讯作者：
Kaiser, Ralf I.

Detection of 1 H -Triphosphirene ( c -HP 3 ) and 2-Triphosphenylidene (HP 3 ): The Isovalent Counterparts of 1 H -Triazirine ( c -HN 3 ) and Hydrazoic Acid (HN 3 )

1 H -三磷烯 ( c -HP 3 ) 和 2-三磷亚苯基 (HP 3 ) 的检测： 1 H -三嗪 ( c -HN 3 ) 和叠氮酸 (HN 3 ) 的等价对应物