On the cause of metallicity gradients in spiral galaxies.
On the cause of metallicity gradients in spiral galaxies.
复制标题
螺旋星系金属丰度梯度的成因。
DOI:
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发表时间:
1991
期刊:
影响因子:
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通讯作者:
M. Edmunds
中科院分区:
文献类型:
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作者:
S. Phillipps;M. Edmunds
We investigate particular models for the chemical evolution of galactic discs in an attempt to account for the observed behaviour of metallicity with surface density, and hence explain abundance gradients. The models include simple Schmidt star formation rate laws, models in which the formation of massive stars is suppressed below a threshold interstellar gas density, and models with self-regulation of star formation