Diverse Properties of Molecular Gas in the Host Galaxies of Fast Radio Bursts

We report the properties of molecular gas in a sample of six host galaxies of fast radio bursts (FRBs) obtained from CO observations with the Atacama Large Millimeter/submillimeter Array (FRBs 20180924B, 20190102C, and 20190711A), the results of one nondetection in a dwarf galaxy (FRB 20121102A), an...

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Veröffentlicht in:Astrophysical journal. Letters 2022-12, Vol.940 (2), p.L34
Hauptverfasser: Hatsukade, Bunyo, Hashimoto, Tetsuya, Niino, Yuu, Hsu, Tzu-Yin
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Sprache:eng
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Zusammenfassung:We report the properties of molecular gas in a sample of six host galaxies of fast radio bursts (FRBs) obtained from CO observations with the Atacama Large Millimeter/submillimeter Array (FRBs 20180924B, 20190102C, and 20190711A), the results of one nondetection in a dwarf galaxy (FRB 20121102A), and two events detected in M81 (FRB 20200120E) and the Milky Way (FRB 20200428A). The CO observations resulted in the detection of CO(3–2) emission in the FRB 20180924B host and nondetections of CO(3–2) and CO(2–1) emission in the hosts of FRB 20190102C and FRB 20190711A, respectively. The derived molecular gas mass and 3 σ upper limit is (2.4 ± 0.2) × 10 9 M ⊙ ,
ISSN:2041-8205
2041-8213
DOI:10.3847/2041-8213/ac9f39