L G Mundy,J P McMullin,G A Blake
L G Mundy
High resolution interferometer and single-dish observations of young, deeply embedded stellar systems reveal a complex chemistry in the circumstellar environments of low to intermediate mass stars. Depletions of gas-phase molecules, grain m...
Chemical evolution of circumstellar matter around young stellar objects [0.03%]
年轻恒星周围 circumstellar物质的化学演化
E F van Dishoeck,G A Blake
E F van Dishoeck
Recent observational studies of the chemical composition of circumstellar matter around both high- and low-mass young stellar objects are reviewed. The molecular abundances are found to be a strong function of evolutionary state, but not of...
Band structure of the solar system: an objective test of the grouping of planets and satellites [0.03%]
太阳系的能带结构：行星和卫星分组的一个客观测试方法
G Arrhenius,S Arrhenius
G Arrhenius
Alfvén in his early work on the origin of the solar system (1942-1946) noted a pronounced band structure in the gravitational potential distribution of secondary bodies, and suggested this feature to be directly related to the formation pr...
Upper limits for the ethyl-cyanide abundances in TMC-1 and L134N: chemical implications [0.03%]
TMC-1和L134N中乙基氰化物丰度上限的化学意义
Y C Minh,W M Irvine
Y C Minh
We have sought interstellar ethyl-cyanide via its 2(02)-1(01) transition towards two cold, dark clouds and report upper limits of the total column densities of 3 x 10(12) cm-2 and 2 x 10(12) cm-2 for TMC-1 and L134N, respectively. We also o...