Isotopomer-Specific Carbon Isotope Ratio of Complex Organic Molecules in Star-Forming Cores [0.03%]
星源中心复杂有机分子的同位素异构体特异性碳同位素比率
Ryota Ichimura,Hideko Nomura,Kenji Furuya et al.
Ryota Ichimura et al.
The recent observation of complex organic molecules (COMs) in interstellar ices by the James Webb Space Telescope (JWST), along with previous gas-phase detections, underscores the importance of grain surface and ice mantle chemistry in the ...
Laboratory Investigation of Simultaneous Ultraviolet Photoprocessing and Temperature-Programmed Desorption of Interstellar Ice Analogs [0.03%]
紫外光解离和温度程序化脱附星际冰模拟物的实验研究
Collette C Sarver,Catherine E Walker,Susanna L Widicus Weaver
Collette C Sarver
Ice mantles on dust grains in the interstellar medium and protoplanetary disks are sites that allow for complex chemistry to occur. The formation of interstellar complex organic molecules (iCOMs) in these astronomical environments relies on...
Lunar and Martian Regolith Simulants Desorb and Weather after Exposure to Bioregenerative Life Support System Effluent [0.03%]
暴露于生物再生生命保障系统排放物后，月球和火星土壤模拟物的脱附和风化
Harrison R Coker,Daniella Saetta,Misle M Tessema et al.
Harrison R Coker et al.
The extraction of plant essential nutrients from extraterrestrial regolith will be necessary to ensure the sustainability of lunar and martian agriculture. An essential instrument of these outposts will be bioregenerative life support syste...
Double Ionization of Polycyclic Aromatic Nitrogen Heterocycles: Simulations on Phenanthridine [0.03%]
菲啶的双电离：理论研究
Jorge H C Basilio,Germán Molpeceres,Wania Wolff et al.
Jorge H C Basilio et al.
A relevant class of molecules is polycyclic aromatic nitrogen heterocycles (PANHs), which are important for the astrochemistry and biochemistry fields. Recently, three new nitrogen-bearing polycyclic aromatic molecules, cyanopyrene, cyanoac...
Yield of the Four-Carbon Stabilized Criegee Intermediates from Isoprene Ozonolysis [0.03%]
异戊二烯臭氧化物生成四价稳定Criegee中间体的产率研究
Rabi Chhantyal-Pun,Pengcheng Wang,Shefali Baweja et al.
Rabi Chhantyal-Pun et al.
Isoprene is the single most abundant nonmethane hydrocarbon emitted into the atmosphere. Despite this, uncertainties in the oxidation chemistry remain. Here, we investigate the yields of Criegee intermediates that are produced from the ozon...
The Photochemistry of Amino Acids Produced on the Polar Cryovolcanic Regions of Titan [0.03%]
土卫六极地 cryovolcanic 区域产生的氨基酸的光化学性质研究
Diogo Gonçalves,Florence Hofmann,Severin Wipf et al.
Diogo Gonçalves et al.
The cryovolcanic regions of Titan offer transient opportunities for prebiotic molecules to exist in water-ammonia solutions on the surface of the Saturnian moon. The upcoming NASA's Dragonfly mission will search for high nitrogen concentrat...
Characterization of Amino Acid Nanolayers and Their Interactions under Simulated Planetary Conditions [0.03%]
氨基酸纳米层及类似行星条件下相互作用的表征
Diogo Gonçalves,Florence Hofmann,Janina Drauschke et al.
Diogo Gonçalves et al.
Laboratory experiments extend our possibility to understand the behavior of organic molecules under extraterrestrial conditions. In the scope of such simulation experiments, organic molecules are often prepared as thin films, embedded in ic...
Silvia Spezzano,Wiebke Riedel,Paola Caselli et al.
Silvia Spezzano et al.
Isotopic fractionation is a very powerful tool to follow the evolution of material from one stage to the next in the star-formation process. Prestellar cores exhibit some of the highest levels of deuteration because their physical condition...
Extension of the AIOMFAC Model for Atmospheric Aerosols Containing Partially Dissociating Organosulfates and Dicarboxylic Acids [0.03%]
具有部分解离式 organosulfate 和二元羧酸的大气气溶胶的 AIOMFAC 模型拓展研究
Ben Bergen,Michel Laforest Mongeau,Hang Yin et al.
Ben Bergen et al.
Organosulfates (OS) are emerging as a prominent secondary organic aerosol component, which can significantly alter the physicochemical properties and thus broader impacts of atmospheric aerosols. Despite their importance, OS-containing mixt...
A Fully ab Initio Kinetic Monte Carlo Approach for Modeling Adsorption and Diffusion in Interstellar Icy Grain Mantles: The Case of H2S [0.03%]
一种用于模拟吸附和扩散的完全从头算动力学蒙特卡罗方法在星际尘埃颗粒包层中的应用：以H2S为例
Vittorio Bariosco,Stefano Pantaleone,Cecilia Ceccarelli et al.
Vittorio Bariosco et al.
Understanding diffusion on interstellar ices is key to modeling the chemical evolution of cold molecular clouds, where low temperatures severely limit molecular mobility. In this study, we introduce a robust and fully automated multiscale c...