K., & [Cumming]{}, A. 2006, [](http://dx.doi.org/10.1086/507598), [](http://adsabs.harvard.edu/abs/2006ApJ...652..559G)

, D. K., [Goodwin]{}, A. J., & [Keek]{}, L. 2017, [](http://dx.doi.org/10.1017/pasa.2017.12), [](https://ui.adsabs.harvard.edu/abs/2017PASA...34...19G)

, D. K., [Muno]{}, M. P., [Hartman]{}, J. M., [Psaltis]{}, D., & [Chakrabarty]{}, D. 2008, [](http://dx.doi.org/10.1086/592044), [](http://adsabs.harvard.edu/abs/2008ApJS..179..360G)

, K., & [Arzoumanian]{}, Z. 2017, [](http://dx.doi.org/10.1038/s41550-017-0301-3), [](http://adsabs.harvard.edu/abs/2017NatAs...1..895G)

, A. J., [Galloway]{}, D. K., [Heger]{}, A., [Cumming]{}, A., & [Johnston]{}, Z. 2019, [](https://ui.adsabs.harvard.edu/abs/2019arXiv190700996G)

, A. J., [Russell]{}, D. M., [Galloway]{}, D. K., [et al.]{} 2019, , 12993, [](https://ui.adsabs.harvard.edu/abs/2019ATel12993....1G)

, J. E., [Marshall]{}, H. L., [Hertz]{}, P., [et al.]{} 1980, [](http://dx.doi.org/10.1086/183337), [](https://ui.adsabs.harvard.edu/abs/1980ApJ...240L.121G)

, J. M., [Patruno]{}, A., [Chakrabarty]{}, D., [et al.]{} 2008, [](http://dx.doi.org/10.1086/527461), [](http://adsabs.harvard.edu/abs/2008ApJ...675.1468H)

, C. C., & [Keek]{}, L. 2016, [](http://dx.doi.org/10.3847/0004-637X/819/1/47), [](https://ui.adsabs.harvard.edu/abs/2016ApJ...819...47H)

, J. J. M., [Heise]{}, J., [Muller]{}, J. M., [et al.]{} 1998, , [](http://adsabs.harvard.edu/abs/1998A%26A...331L..25I)

, J. J. M., [Galloway]{}, D. K., [Marshall]{}, H. L., [et al.]{} 2013, [](http://dx.doi.org/10.1051/0004-6361/201321056), [](http://adsabs.harvard.edu/abs/2013A%26A...553A..83I)

, J. J. M., [Cornelisse]{}, R., [Kuulkers]{}, E., [et al.]{} 2001, [](http://dx.doi.org/10.1051/0004-6361:20010546), [](https://ui.adsabs.harvard.edu/abs/2001A&A...372..916I)

, K., [Markwardt]{}, C. B., [Radeva]{}, Y., [et al.]{} 2006, [](http://dx.doi.org/10.1086/500659), [](http://adsabs.harvard.edu/abs/2006ApJS..163..401J)

, G. K., [Chenevez]{}, J., [Bult]{}, P., [et al.]{} 2019, [](https://ui.adsabs.harvard.edu/abs/2019arXiv190803373J)

, L., & [Heger]{}, A. 2017, [](http://dx.doi.org/10.3847/1538-4357/aa7748), [](https://ui.adsabs.harvard.edu/abs/2017ApJ...842..113K)

, L., [Iwakiri]{}, W., [Serino]{}, M., [et al.]{} 2017, [](http://dx.doi.org/10.3847/1538-4357/836/1/111), [](https://ui.adsabs.harvard.edu/abs/2017ApJ...836..111K)

, L., [Arzoumanian]{}, Z., [Chakrabarty]{}, D., [et al.]{} 