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arXiv 0708.4014astro-ph
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亚毫米/射电亮伽马射线暴宿主星系的光谱能量分布

Spectral energy distributions of submm/radio bright gamma-ray burst host galaxies

M. J. Michałowski, J. Hjorth

摘要:

我们提出的光无线电频谱能量分布拟合的主机星系的四个长伽马射线暴:980703,000210,000418和010222,这是在亚毫米和/或无线电波长检测。我们发现,只有非常年轻的星爆星系模型是一致的数据,既有蓝色的光学颜色和一个明显的submm发射。对于每个宿主,我们能够构建与光谱的短波长和长波长部分一致的模型。我们发现星系的年龄范围从0.09到2.0 Gyrs和恒星形成率范围从138到380 MSun/yr。

英文摘要:

We present optical to radio spectral energy distribution fitting of the host galaxies of four long gamma-ray bursts: 980703, 000210, 000418 and 010222, which were detected at submillimetre and/or radio wavelengths. We find that only very young starburst galaxy models are consistent with the data having both blue optical colors and a pronounced submm emission. For each host we are able to construct a model consistent with the short- and long-wavelength parts of the spectra. We find galaxy ages ranging from 0.09 to 2.0 Gyrs and star formation rates ranging from 138 to 380 MSun/yr.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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