Two γ-ray bursts from dusty regions with little molecular gas

B. Hatsukade (), K. Ohta, A. Endo, K. Nakanishi, Y. Tamura, T. Hashimoto and K. Kohno
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B. Hatsukade: National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
K. Ohta: Kyoto University, Kyoto 606-8502, Japan
A. Endo: Kavli Institute of NanoScience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
K. Nakanishi: National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
Y. Tamura: Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
T. Hashimoto: National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
K. Kohno: Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan

Nature, 2014, vol. 510, issue 7504, 247-249

Abstract: Emission spectra from the host galaxies of two γ-ray bursts reveal that the regions where the bursts occur are rich in dust but not in molecular gas, which is unexpected because γ-ray bursts are associated with the explosions of massive stars that require molecular gas as fuel.

Date: 2014
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DOI: 10.1038/nature13325

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