搜索结果: 1-6 共查到“星系与宇宙学 chemical”相关记录6条 . 查询时间(0.098 秒)
Probing chemical evolution in molecular clouds with millimeter -wave observations
Cereal chemistry The interstellar medium Millimeter wavelength Molecular emission Dynamics Temperature observation The density of hydrogen molecules
2014/12/9
We present results for a study of gas-phase and grain chemical processes in the dense interstellar medium (ISM) using millimeter-wavelength observations of the pure rotational transitions of molecules...
The Peculiar Chemical Inventory of NGC 2419 -- An Extreme Outer Halo "Globular Cluster"
Peculiar Chemical Inventory Extreme Outer
2011/10/8
NGC 2419 is a massive outer halo Galactic globular cluster whose stars have previously been shown to have somewhat peculiar abundance patterns. We have observed seven luminous giants that are members ...
Chemical history of molecules in circumstellar disks
astrochemistry – stars: formation – circumstellar matter – planetary systems: pro- toplanetary disks – molecular processes
2011/10/8
The chemical composition of a protoplanetary disk is determined not only by in situ chemical processes during the disk phase, but also by the history of the gas and dust before it accreted from the na...
Rapid Neutron Capture Process in Supernovae and Chemical Element Formation
Supernova—nucleosynthesis—abundance—r-process
2010/9/15
The rapid neutron capture process (r-process) is one of the major nucleosynthesis processes responsible for the synthesis of heavy nuclei beyond iron. Isotopes beyond Fe are most exclusively formed in...
The chemical evolution of gas-rich dwarf galaxies
chemical evolution gas-rich dwarf galaxies
2009/6/11
The chemical evolution of gas-rich dwarf galaxies。
The Temperature Structure in Ionized Nebulae and the Chemical Evolution of Galaxies
Temperature Structure Ionized Nebulae Galaxies
2009/6/10
The Temperature Structure in Ionized Nebulae and the Chemical Evolution of Galaxies。