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Quasar Metal Abundance and FIR Luminosity
被引:0
作者:
Simon, L. E.
[1
]
Hamann, F.
[1
]
机构:
[1] Univ Florida, Dept Astron, Bryant Space Scinece Ctr 211, Gainesville, FL 32611 USA
来源:
STARBURST-AGN CONNECTION
|
2009年
/
408卷
关键词:
MM MAMBO/IRAM-30 M;
DUST EMISSION;
BLACK-HOLES;
GALAXIES;
D O I:
暂无
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We compare the metallicities in high-redshift quasars to the star formation rates (SFR) in their host galaxies using measurements of broad emission lines and far-infrared (FIR) luminosities. The FIR emission indicates the level of ongoing massive starbursts in the galaxy, whereas the abundance of metals in the gas surrounding the quasar indicates the amount of star formation which ocurred before the visible quasar phase began. The results of this study can be used to constrain the late stages of starburst-quasar evolution. We detect high metallicities throughout the sample, up to several times solar, confirming that star formation must have begun before the visible quasar phase. However, we do not detect a trend in metallicity versus current SFR.
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页码:173 / 175
页数:3
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