Browsing University of Hertfordshire by Author "Heald, George H."

Now showing items 1-3 of 3

    • Calibrating the relation of low-frequency radio continuum to star formation rate at 1 kpc scale with LOFAR 

      Heesen, V.; E., Buie II; Huff, C. J.; Perez, L. A.; Woolsey, J. G.; Rafferty, D. A.; Basu, A.; Beck, R.; Brinks, E.; Horellou, C.; Scannapieco, E.; Brüggen, M.; Dettmar, R. -J.; Sendlinger, K.; Nikiel-Wroczyński, B.; Chyży, K. T.; Best, P.N.; Heald, George H.; Paladino, R. (2018-10-15)
      Radio continuum (RC) emission in galaxies allows us to measure star formation rates (SFRs) unaffected by extinction due to dust, of which the low-frequency part is uncontaminated from thermal (free-free) emission. We ...

    • MeerKAT HI commissioning observations of MHONGOOSE galaxy ESO 302-G014 

      Blok, W. J. G. de; Athanassoula, E.; Bosma, Albert; Combes, Francoise; English, J.; Heald, George H.; Kamphuis, P.; Koribalski, B. S.; Meurer, G. R.; Román, J.; Sardone, A.; Verdes-Montenegro, L.; Bigiel, F.; Brinks, E.; Chemin, L.; Fraternali, F.; Jarrett, T.; Kleiner, D.; Maccagni, F. M.; Pisano, D. J.; Serra, P.; Spekkens, K.; Amram, P.; Carignan, C.; Dettmar, R-J; Gibson, B. K.; Holwerda, B. W.; Józsa, G. I. G; Lucero, D. M.; Oosterloo, T. A.; Ramaila, A. J. T.; Ramatsoku, M.; Sheth, K.; Walter, Fabian; Wong, O.I.; Zijlstra, A. A.; Bloemen, S.; Groot, P. J.; Poole, R. Le; Klein-Wolt, M.; Körding, E. G.; McBride, V. A.; Paterson, K.; Pieterse, D. L. A.; Vreeswijk, P.; Woudt, P. A. (2020-09-22)
      We present the results of three commissioning HI observations obtained with the MeerKAT radio telescope. These observations make up part of the preparation for the forthcoming MHONGOOSE nearby galaxy survey, which is a ...

    • Smooth HI Low Column Density Outskirts In Nearby Galaxies 

      Ianjamasimanana, Roger; Walter, Fabian; Blok, W. J. G. de; Heald, George H.; Brinks, Elias (2018-05-14)
      The low column density gas at the outskirts of galaxies as traced by the 21 cm hydrogen line emission (H i) represents the interface between galaxies and the intergalactic medium, i.e., where galaxies are believed to get ...