Browsing by Author "Wagenveld, J. D."

Now showing items 1-3 of 3

    • Discovery of 24 radio-bright quasars at $4.9 \leq z \leq6.6$ using low-frequency radio observations 

      Gloudemans, A. J.; Duncan, K. J.; Saxena, A.; Harikane, Y.; Hill, G. J.; Zeimann, G. R.; Rottgering, H. J. A.; Yang, D.; Best, P. N.; Banados, E.; Drabent, A.; Hardcastle, M. J.; Hennawi, J. F.; Lansbury, G.; Magliocchetti, M.; Miley, G. K.; Nanni, R.; Shimwell, T. W.; Smith, D. J. B.; Venemans, B.P.; Wagenveld, J. D. (2022-12-31)
      High redshift quasars ($z>5$) that also shine brightly at radio wavelengths are unique signposts of supermassive black hole activity in the early universe. However, bright radio sources at $z\ge5$ are extremely rare and ...

    • The LOFAR Two Metre Sky Survey: Deep Fields Data Release 1. III. Host-galaxy identifications and value added catalogues 

      Kondapally, R.; Best, P. N.; Hardcastle, M. J.; Nisbet, D.; Bonato, M.; Sabater, J.; Duncan, K. J.; McCheyne, I.; Cochrane, R. K.; Bowler, R. A. A.; Williams, W. L.; Shimwell, T. W.; Tasse, C.; Croston, J. H.; Goyal, A.; Jamrozy, M.; Jarvis, M. J.; Mahatma, V. H.; R\öttgering, H. J. A.; Smith, D. J. B.; Wo\łowska, A.; Bondi, M.; Brienza, M.; Brown, M. J. I.; Br\üggen, M.; Chambers, K.; Garrett, M. A.; G\ürkan, G.; Huber, M.; Kunert-Bajraszewska, M.; Magnier, E.; Mingo, B.; Mostert, R.; Nikiel-Wroczy\\ński, B.; OŚullivan, S. P.; Paladino, R.; Ploeckinger, T.; Prandoni, I.; Rosenthal, M. J.; Schwarz, D. J.; Shulevski, A.; Wagenveld, J. D.; Wang, L. (2021-04-07)
      We present the source associations, cross-identifications, and multi-wavelength properties of the faint radio source population detected in the deep tier of the LOFAR Two Metre Sky Survey (LoTSS): the LoTSS Deep Fields. ...

    • Plausible association of distant late M dwarfs with low-frequency radio emission 

      Gloudemans, A. J.; Callingham, J. R.; Duncan, K. J.; Saxena, A.; Harikane, Y.; Hill, G. J.; Zeimann, G. R.; Rottgering, H. J. A.; Hardcastle, M. J.; Pineda, J. S.; Shimwell, T. W.; Smith, D. J. B.; Wagenveld, J. D. (2023-10-17)
      We present the serendipitous discovery of eight distant (> 50 pc) late M dwarfs with plausible associated radio emission at 144 MHz. The M-dwarf nature of our sources has been confirmed with optical spectroscopy performed ...