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Dr Klaas Wiersema

Formerly at Lancaster University

  1. 2022
  2. Published

    A blast from the infant Universe: The very high- z GRB 210905A

    Rossi, A., Frederiks, D. D., Kann, D. A., De Pasquale, M., Pian, E., Lamb, G., D'Avanzo, P., Izzo, L., Levan, A. J., Malesani, D. B., Melandri, A., Nicuesa Guelbenzu, A., Schulze, S., Strausbaugh, R., Tanvir, N. R., Amati, L., Campana, S., Cucchiara, A., Ghirlanda, G. & Della Valle, M. & 35 others, Klose, S., Salvaterra, R., Starling, R. L. C., Stratta, G., Tsvetkova, A. E., Vergani, S. D., D'Aì, A., Burgarella, D., Covino, S., D'Elia, V., Postigo, A. D. U., Fausey, H., Fynbo, J. P. U., Frontera, F., Guidorzi, C., Heintz, K. E., Masetti, N., Maiorano, E., Mundell, C. G., Oates, S. R., Page, M. J., Palazzi, E., Palmerio, J., Pugliese, G., Rau, A., Saccardi, A., Sbarufatti, B., Svinkin, D. S., Tagliaferri, G., Van Der Horst, A. J., Watson, D. J., Ulanov, M. V., Wiersema, K., Xu, D. & Zhang, J., 21/09/2022, In: Astronomy and Astrophysics. 665, 18 p., A125.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  3. Published

    Where are the magnetar binary companions? Candidates from a comparison with binary population synthesis predictions

    Chrimes, A. A., Levan, A. J., Fruchter, A. S., Groot, P. J., Jonker, P. G., Kouveliotou, C., Lyman, J. D., Stanway, E. R., Tanvir, N. R. & Wiersema, K., 31/07/2022, In: Monthly Notices of the Royal Astronomical Society. 513, 3, p. 3550-3563 14 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  4. Published

    New candidates for magnetar counterparts from a deep search with the Hubble Space Telescope

    Chrimes, A. A., Levan, A. J., Fruchter, A. S., Groot, P. J., Kouveliotou, C., Lyman, J. D., Tanvir, N. R. & Wiersema, K., 30/06/2022, In: Monthly Notices of the Royal Astronomical Society. 512, 4, p. 6093-6103 11 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  5. E-pub ahead of print

    Towards an understanding of long gamma-ray burst environments through circumstellar medium population synthesis predictions

    Chrimes, A. A., Gompertz, B. P., Kann, D. A., van Marle, A. J., Eldridge, J. J., Groot, P. J., Laskar, T., Levan, A. J., Nicholl, M., Stanway, E. R. & Wiersema, K., 29/06/2022, (E-pub ahead of print) In: Monthly Notices of the Royal Astronomical Society.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  6. Published

    The Fast Radio Burst-emitting Magnetar SGR 1935+2154—Proper Motion and Variability from Long-term Hubble Space Telescope Monitoring

    Lyman, J. D., Levan, A. J., Wiersema, K., Kouveliotou, C., Chrimes, A. A. & Fruchter, A. S., 17/02/2022, In: The Astrophysical Journal. 926, 2, 11 p., 121.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  7. 2021
  8. Published

    Processing GOTO data with the Rubin Observatory LSST Science Pipelines I: Production of coadded frames

    Mullaney, J., Makrygianni, L., Dhillon, V., Littlefair, S., Ackley, K., Dyer, M., Lyman, J., Ulaczyk, K., Cutter, R., Mong, Y.-L., Steeghs, D., Galloway, D. K., O’Brien, P., Ramsay, G., Poshyachinda, S., Kotak, R., Nuttall, L., Pallé, E., Pollacco, D. & Thrane, E. & 27 others, Aukkaravittayapun, S., Awiphan, S., Breton, R., Burhanudin, U., Chote, P., Chrimes, A., Daw, E., Duffy, C., Eyles-Ferris, R., Gompertz, B., Heikkilä, T., Irawati, P., Kennedy, M., Killestein, T., Levan, A., Marsh, T., Mata-Sanchez, D., Mattila, S., Maund, J., McCormac, J., Mkrtichian, D., Rol, E., Sawangwit, U., Stanway, E., Starling, R., Tooke, S. & Wiersema, K., 31/12/2021, In: Publications of the Astronomical Society of Australia. 38, e004.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  9. Published

    Processing GOTO survey data with the Rubin Observatory LSST Science Pipelines II: Forced Photometry and lightcurves

    Makrygianni, L., Mullaney, J., Dhillon, V., Littlefair, S., Ackley, K., Dyer, M. J., Lyman, J., Ulaczyk, K., Cutter, R., Mong, Y.-L., Steeghs, D., Galloway, D. K., O’Brien, P., Ramsay, G., Poshyachinda, S., Kotak, R., Nuttall, L., Pallé, E., Pollacco, D. & Thrane, E. & 28 others, Aukkaravittayapun, S., Awiphan, S., Breton, R. P., Burhanudin, U., Chote, P., Chrimes, A., Daw, E., Duffy, C., Eyles-Ferris, R., Gompertz, B., Heikkilä, T., Irawati, P., Kennedy, M., Killestein, T., Levan, A., Marsh, T., Mata-Sanchez, D., Mattila, S., Maund, J., McCormac, J., Mkrtichian, D., Rol, E., Sawangwit, U., Stanway, E., Starling, R., Strøm, P. A., Tooke, S. & Wiersema, K., 31/12/2021, In: Publications of the Astronomical Society of Australia. 38, 11 p., e025.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  10. Published

    Searching for <i>Fermi</i> GRB optical counterparts with the prototype Gravitational-wave Optical Transient Observer (GOTO)

    Mong, Y.-L., Ackley, K., Galloway, D. K., Dyer, M. J., Cutter, R., Brown, M. J. I., Lyman, J., Ulaczyk, K., Steeghs, D., Dhillon, V., O’Brien, P., Ramsay, G., Noysena, K., Kotak, R., Breton, R. P., Nuttall, L., Pallé, E., Pollacco, D., Thrane, E. & Awiphan, S. & 28 others, Burhanudin, U., Chote, P., Chrimes, A., Daw, E., Duffy, C., Eyles-Ferris, R., Gompertz, B., Heikkilä, T., Irawati, P., Kennedy, M. R., Killestein, T., Levan, A., Littlefair, S., Makrygianni, L., Marsh, T., Mata-Sanchez, D., Mattila, S., Maund, J., McCormac, J., Mkrtichian, D., Mullaney, J., Rol, E., Sawangwit, U., Stanway, E., Starling, R., Strøm, P., Tooke, S. & Wiersema, K., 30/11/2021, In: Monthly Notices of the Royal Astronomical Society. 507, 4, p. 5463-5476 14 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  11. Published

    Light-curve classification with recurrent neural networks for GOTO: dealing with imbalanced data

    Burhanudin, U. F., Maund, J., Killestein, T., Ackley, K., Dyer, M. J., Lyman, J., Ulaczyk, K., Cutter, R., Mong, Y.-L., Steeghs, D., Galloway, D. K., Dhillon, V., O’Brien, P., Ramsay, G., Noysena, K., Kotak, R., Breton, R. P., Nuttall, L., Pallé, E. & Pollacco, D. & 25 others, Thrane, E., Awiphan, S., Chote, P., Chrimes, A., Daw, E., Duffy, C., Eyles-Ferris, R., Gompertz, B., Heikkilä, T., Irawati, P., Kennedy, M. R., Levan, A., Littlefair, S., Makrygianni, L., Mata-Sánchez, D., Mattila, S., McCormac, J., Mkrtichian, D., Mullaney, J., Sawangwit, U., Stanway, E., Starling, R., Strøm, P., Tooke, S. & Wiersema, K., 31/08/2021, In: Monthly Notices of the Royal Astronomical Society. 505, 3, p. 4345-4361 17 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  12. Published

    Transient-optimized real-bogus classification with Bayesian convolutional neural networks – sifting the GOTO candidate stream

    Killestein, T., Lyman, J., Steeghs, D., Ackley, K., Dyer, M. J., Ulaczyk, K., Cutter, R., Mong, Y.-L., Galloway, D. K., Dhillon, V., O’Brien, P., Ramsay, G., Poshyachinda, S., Kotak, R., Breton, R. P., Nuttall, L. K., Pallé, E., Pollacco, D., Thrane, E. & Aukkaravittayapun, S. & 28 others, Awiphan, S., Burhanudin, U., Chote, P., Chrimes, A., Daw, E., Duffy, C., Eyles-Ferris, R., Gompertz, B., Heikkilä, T., Irawati, P., Kennedy, M. R., Levan, A., Littlefair, S., Makrygianni, L., Mata Sánchez, D., Mattila, S., Maund, J., McCormac, J., Mkrtichian, D., Mullaney, J., Rol, E., Sawangwit, U., Stanway, E., Starling, R., Strøm, P. A., Tooke, S., Wiersema, K. & Williams, S. C., 30/06/2021, In: Monthly Notices of the Royal Astronomical Society. 503, 4, p. 4838-4854 17 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

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