Dust in the dwarf galaxy NGC 1569: Evidence for an enhancement of small grains

被引：5
|
作者：
Lisenfeld, U [1 ]
Sievers, A
Israel, F
Stil, J
机构：
[1] IRAM, E-18012 Granada, Spain
[2] Sterrewacht Leiden, NL-2300 RA Leiden, Netherlands
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2001年 / 277卷 / Suppl 1期
关键词：
dust; NGC; 1569; millimetre;
D O I：
10.1023/A:1012764618769
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have mapped the dwarf galaxy NGC 1569 at 1.2 mm with the MPIfR bolometer at the IRAM 30m telescope. The total flux density allows us, together with the IRAS fluxes densities at 12, 25, 60 and 100 mum, to draw conclusions about the dust properties and to estimate the total dust mass. We find strong evidence for a significant enhancement of very small grains and a depletion of PAHs.
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收藏
页码：105 / 105
页数：1
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