Browsing by Author "Murray, D."

Now showing items 1-3 of 3

    • Discovery of the benchmark metal poor T8 dwarf BD+01 2920B 

      Pinfield, D.J.; Burningham, B.; Lodieu, N.; Leggett, S.; Tinney, C.G.; van Spaandonk, L.; Marocco, F.; Smart, R.; Gomes, J.; Smith, Leigh; Lucas, P.W.; Day-jones, A.; Murray, D.; Katsiyannis, A. C.; Catalan, S.; Cardoso, C.; Clarke, James; Folkes, S.; Galvez-Ortiz, M.; Homeier, D.; Jenkins, J.; Jones, H.R.A.; Zhang, Z. (2012)
      We have searched the Wide-field Infrared Survey Explorer first data release for widely separated (<=10,000AU) late T dwarf companions to Hipparcos and Gliese stars. We have discovered a new binary system containing a K-band ...

    • Discovery of the first white dwarf + T dwarf binary system and the use of white dwarfs as age calibrators 

      Day-Jones, Avril; Pinfield, D.J.; Ruiz, M.; Beaumont, H.; Gallardo, J.; Gianninas, A.; Bergeron, P.; Napiwotzki, Ralf; Jenkins, J.S.; Burningham, B.; Zhang, Z.H.; Jones, H.R.A.; Murray, D.; Catalan, Silvia; Ines Gomes, Joana (American Institute of Physics (AIP), 2010)
      We present the discovery of the first white dwarf + T dwarf binary system. Systems containing a white dwarf and a brown dwarf are rare but can be used to place constraints on the age of the binary, making them valuable ...

    • Effects of temperature, cultivar and isolate on the incubation period of white leaf spot (Mycosphaerella capsellae) on oilseed rape (Brassica napus) 

      Inman, A.J.; Fitt, Bruce D.L.; Welham, S.J.; Evans, R. L.; Murray, D. (1997-04)
      When leaves of oilseed rape (cv. Cobra) were inoculated with conidial suspensions of Mycosphaerella capsellae (white leaf spot) and incubated in controlled environments, the lag period from inoculation to the appearance ...