Browsing by Author "Weights, D."

Now showing items 1-7 of 7

    • Discovery of a widely separated ultracool dwarf–white dwarf binary 

      Day-Jones, A.C.; Pinfield, D.J.; Napiwotzki, R.; Burningham, B.; Jenkins, J.S.; Jones, H.R.A.; Folkes, S.; Weights, D.; Clarke, J.R.A. (2008)

    • Discovery of the first L dwarf plus giant binary system and eight other ultracool dwarfs in wide binaries 

      Zhang, Z.; Pinfield, D.J.; Day-Jones, A.C.; Burningham, B.; Jones, H.R.A.; Yu, S.; Jenkins, J.S.; Han, Z.; Galvez-Ortiz, M.C.; Gallardo, J.; Garcia Perez, A.E.; Weights, D.; Tinney, C.G.; Pokorny, R.S. (2010)
      We identify 806 ultracool dwarfs (of which 34 are newly discovered L dwarfs) from their Sloan Digital Sky Survey (SDSS) riz photometry and obtain proper motions through cross-matching with the United Kingdom Infrared ...

    • GRB 090902B: afterglow observations and implications 

      Pandey, S.B.; Swenson, C.A.; Perley, D.A.; Guidorzi, C.; Wiersema, K.; Malesani, D.; Akerlof, C.; Ashley, M.C.B.; Bersier, D.; Cano, Z.; Gomboc, A.; Ilyin, I.; Jakobsson, P.; Kleiser, I.K.W.; Kobayashi, S.; Kouveliotou, C.; Levan, A.; McKay, T.A.; Melandri, A.; Mottram, C.J.; Mundell, C.G.; O'Brien, P.T.; Phillips, A.; Rex, J.M.; Siegel, M.H.; Smith, R.J.; Steele, I.A.; Stratta, G.; Tanvir, N.; Weights, D.; Yost, S.A.; Yuan, F.; Zheng, W. (2010)
      The optical-infrared afterglow of the Large Area Telescope (LAT)-detected long-duration burst, GRB 090902B, has been observed by several instruments. The earliest detection by ROTSE-IIIa occurred 80 minutes after detection ...

    • Infrared spectroscopy and analysis of brown dwarf and planetary mass objects in the Orion nebula cluster 

      Weights, D.; Lucas, P.W.; Roche, P.F.; Pinfield, D.J.; Riddick, F. (2009)
      We present near-infrared long-slit and multislit spectra of low-mass brown dwarf candidates in the Orion nebula cluster. The long-slit data were observed in the H and K bands using NIRI on the Gemini-North Telescope. The ...

    • New nearby, bright southern ultracool dwarfs 

      Kendall, T.R.; Jones, H.R.A.; Pinfield, D.J.; Pokorny, R.S.; Folkes, S.; Weights, D.; Jenkins, J.S.; Mauron, N. (2007)

    • Spectroscopy of planetary mass brown dwarfs in Orion 

      Lucas, P.W.; Weights, D.; Roche, P.F.; Riddick, F. (2006)

    • Two new ultracool benchmark systems from WISE+2MASS 

      Gomes, J. I.; Pinfield, D.J.; Marocco, F.; Day-Jones, A. C.; Burningham, B.; Zhang, Z. H.; Jones, H.R.A.; van Spaandonk, L.; Weights, D. (2013-05)
      We have used the Two-Micron All-Sky Survey and the Wide-field Infrared Survey Explorer to look for ultracool dwarfs that are part of multiple systems containing main-sequence stars. We cross-matched L dwarf candidates from ...