Fragmentation in Molecular Clouds

Fragmentation in Molecular Clouds
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分子云中的碎片

DOI:
10.1007/978-94-011-3384-5_45
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发表时间:
1991
期刊:
影响因子:
5
通讯作者:
R. Laureijs
R. Laureijs
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
F. Clark;T. Prusti;R. Laureijs

文献摘要

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用12CO、13CO、H_2CO、IRAS 60和100微米图像在密度为1000 cm−3的B209分子云的外部探测到碎片,作为速度分量可识别,并且具有特征:∼0.4Pc;∼2M⨀;#x003C;MVR Fragment>∼1.6M⨀KM/S PC;TGAS∼11K;Tdusat∼16K?碎片系统有∼0.5PC和∼1.6M⨀KM/S Pc。这些如图1所示,其中包含与艺妓和随附的U·Koln Gornergrat CO光谱为每个碎片制作的IRAS 100微米图。每个碎片的不同特征速度是显而易见的。
Fragments are detected in the outer parts of the B209 molecular cloud in a region of density 1000 cm−3 using 12CO, 13CO, H2CO, IRAS 60 and 100 µm images, discernable as velocity components, and have characteristics: ∼ 0.4 Pc; ∼2 M⨀;#x003C;MVRfragment>∼ 1.6 M⨀ km/s pc; Tgas ∼11 K; Tdusat ∼ 16 K??.The system of fragments has ∼ 0.5 pc and ∼ 1.6 M⨀ km/s pc.These are illustrated in Figure 1, which contains an IRAS 100 µm map made with Geisha and attendant U. Koln Gornergrat CO spectra for each respective fragment. The differing characteristic velocities of each fragment are readily apparent.