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

M. J. Michałowski; J. Hjorth

doi:10.1063/1.2774852

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arXiv · 0708.4014

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

M. J. Michałowski·J. Hjorth

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Abstract

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.

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M. J. Michałowski, J. Hjorth. 2007-08-29. Spectral energy distributions of submm/radio bright gamma-ray burst host galaxies. https://doi.org/10.1063/1.2774852

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