搜索结果: 1-14 共查到“天文学 Chemical evolution”相关记录14条 . 查询时间(0.093 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...
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. IV. Two bulge populations
Gravitational lensing: micro—Galaxy: bulge —Galaxy: formation —Galaxy: evolution —Stars: abundances
2011/10/20
Based on high-resolution (R~42000 to 48000) and high signal-to-noise (S/N~50 to 150) spectra obtained with UVES/VLT, we present detailed elemental abundances (O, Na, Mg, Al, Si, Ca, Ti, Cr, Fe, Ni, Zn...
The Chemical Evolution of Narrow Emission Line Galaxies: the Key to their Formation Processes
galaxy: activity galaxy: formation galaxy: chemical evolution
2011/10/20
Using the largest sample of narrow emission line galaxies available so far, we show that their spectral characteristics are correlated with different physical parameters, like the chemical abundances,...
Chemical evolution of a protoplanetary disk
accretion disks astrochemistry diff usion line:formation molecular processes
2011/10/13
In this paper we review recent progress in our understanding of the chemical evolution of protoplanetary disks. Current observational constraints and theoretical modeling on the chemical composition o...
Cosmic Chemical Evolution with an Early Population of Intermediate Mass Stars
Cosmic Chemical Evolution Intermediate Mass Stars
2011/1/11
We explore the consequences of an early population of intermediate mass stars in the 2 - 8 M\odot range on cosmic chemical evolution. We discuss the implications of this population as it pertains to s...
Observational approach to the chemical evolution of high-mass binaries
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/6
The complexity of composite spectra of close binaries makes the study of the individual stellar spectra extremely difficult. For this reason there exists very little information on the chemical compos...
Chemical evolution of the galactic disk via simulations of the open cluster system
galactic disk via simulations open cluster system
2009/6/25
Chemical evolution of the galactic disk via simulations of the open cluster system。
Predicted chemical evolution for spiral disks from their observed rotation curves
chemical evolution rotation curves spiral disks
2009/6/25
Predicted chemical evolution for spiral disks from their observed rotation curves。
Chemical evolution of galaxies。
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。
Pn-carbon yields and the chemical evolution of the galaxy
Pn-carbon yields galaxy chemical evolution
2009/6/11
Pn-carbon yields and the chemical evolution of the galaxy。
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。
Dark Matter and the Chemical Evolution of Irregular Galaxies
Dark Matter Irregular Galaxies Chemical Evolution
2009/6/5
Dark Matter and the Chemical Evolution of Irregular Galaxies。
The Chemical Evolution of Dynamically Hot Galaxies
Chemical Evolution Dynamically Hot Galaxies
2009/6/5
The Chemical Evolution of Dynamically Hot Galaxies。