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A Hyperactive Fast Radio Burst Pinpointed in an SMC-like Satellite Host Galaxy

  • Authors: M. Bhardwaj, M. P. Snelders, J. W. T. Hessels, A. Gil de Paz, S. Bhandari, B. Marcote, A. Kirichenko, O. S. Ould-Boukattine, F. Kirsten, E. K. Bempong-Manful, V. Bezrukovs, J. D. Bray, S. Buttaccio, A. Corongiu, R. Feiler, M. P. Gawroński, M. Giroletti, D. M. Hewitt, M. Lindqvist, G. Maccaferri, A. Moroianu, K. Nimmo, Z. Paragi, W. Puchalska, N. Wang, D. Williams-Baldwin, J.P. Yuan

M. Bhardwaj et al 2025 The Astrophysical Journal Letters 992 .

  • Provider: AAS Journals

Caption: Figure 4.

Central panel: OSIRIS spectra of the FRB host (black solid line) and the central galaxy (gray solid line). Peripheral panels: these insets show the brightest emission lines detected in each spectrum and their corresponding 1G fits. On the left, we show the region around the unresolved [O II] λλ3726, 3629 Å doublet, while the Hβ and [OIII] λλ4959, 5007 Å lines and their best fits are shown on top. The right panels show the Hα line region for each of the two spectra. All spectra correspond to our 2024 observations, as these data provide wider wavelength coverage.

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