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Browsing by Author "Burleigh, M.R."
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Follow-up Observations of SPY White Dwarf + M-Dwarf Binaries
Maxted, P.F.L.; Napiwotzki, R.; Marsh, T.R.; Burleigh, M.R.; Dobbie, P.D.; Hogan, E.; Nelemans, G. (Astronomical Society of the Pacific, 2007)We present the results of follow-up observations of white-dwarf + M-dwarf binaries identified using spectra obtained as part of the SPY survey. Spectra of the Hα region were obtained with the SPIRAL spectrograph on the AAT ... -
FUSE observations of PG1342+444 : new insights into the nature of the hottest DA white dwarfs
Barstow, M.A.; Good, S.A.; Holberg, J.B.; Burleigh, M.R.; Bannister, N.P.; Hubeny, I.; Napiwotzki, R. (2002)We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the very hot (Teff≈60 000 K) DA white dwarf PG1342+444, describing our data reduction and analysis techniques. The spectrum reveals a number of ... -
GRB 060206 and the quandary of achromatic breaks in afterglow light curves
Curran, P.; van der Horst, A.J.; Wijers, R.A.M.J.; Starling, R.L.; Castro-Tirado, A.J.; Fynbo, J.; Gorosabel, J.; Jarvinen, A.S.; Malesani, D.; Rol, E.; Tanvir, N.; Wiersema, K.; Burleigh, M.R.; Casewell, S.L.; Dobbie, P.D.; Guziy, S.; Jakobsson, P.; Jelinek, M.; Laursen, P.; Levan, A.; Mundell, C.G.; Naranen, J.; Piranomonte, S. (2007) -
Heavy Elements in DA White Dwarfs
Barstow, M.A.; Burleigh, M.R.; Bannister, N.P.; Holberg, J.B.; Hubeny, I.; Bruhweiler, F.C.; Napiwotzki, R. (2001) -
Heavy Elements in DA White Dwarfs
Barstow, M.A.; Burleigh, M.R.; Bannister, N.P.; Holberg, J.B.; Hubeny, I.; Bruhweiler, F.C.; Napiwotzki, R. (Astronomical Society of the Pacific, 2001) -
Heavy-element abundance patterns in hot DA white dwarfs
Barstow, M.A.; Good, S.A.; Holberg, J.B.; Hubeny, I.; Bannister, N.P.; Bruhweiler, F.C.; Burleigh, M.R.; Napiwotzki, R. (2003-05) -
High-resolution optical spectroscopy of Praesepe white dwarfs
Casewell, S.L.; Dobbie, P.D.; Napiwotzki, R.; Burleigh, M.R.; Barstow, M.A.; Jameson, R.F. (2009)We present the results of a high-resolution optical spectroscopic study of nine white dwarf candidate members of Praesepe undertaken with the VLT and Ultraviolet and Visual Echelle Spectrograph. We find, contrary to a ... -
The initial-final mass relationship of white dwarfs in common proper motion pairs
Catalan, Silvia; Ribas, I.; Isern, J.; Garcia-Berro, E.; Prieto, C. Allende (Astronomical Society of the Pacific, 2007)A promising approach to decrease the uncertainties in the initial-final mass relationship, which is still poorly constrained, is to study white dwarfs for which external constraints are available, for instance, white dwarfs ... -
A near-infrared spectroscopic detection of the brown dwarf in the post common envelope binary WD 0137-349
Burleigh, M.R.; Hogan, E.; Dobbie, P.D.; Napiwotzki, R.; Maxted, P.F.L. (2006) -
A near-infrared spectroscopic search for very-low-mass cool companions to notable DA white dwarfs
Dobbie, P.D.; Burleigh, M.R.; Levan, A.; Barstow, M.A.; Napiwotzki, R.; Holberg, J.B.; Hubeny, I.; Howell, S.B. (2005) -
A near-IR spectrum of the DO white dwarf RE J0503-285
Dobbie, P.D.; Burleigh, M.R.; Levan, A.; Barstow, M.A.; Napiwotzki, R.; Hubeny, I. (2005) -
A new detailed examination of white dwarfs in NGC 3532 and NGC 2287
Dobbie, P.D.; Napiwotzki, R.; Burleigh, M.R.; Williams, K.A.; Sharp, R.G.; Barstow, M.A.; Casewell, S.L.; Hubeny, I. (2009)We present the results of a photometric and spectroscopic study of the white dwarf candidate members of the intermediate age open clusters NGC 3532 and NGC 2287. Of the nine objects investigated, it is determined that six ... -
New Praesepe white dwarfs and the initial mass final mass relation
Dobbie, P.D.; Napiwotzki, R.; Burleigh, M.R.; Barstow, M.A.; Boyce, D.D.; Casewell, S.L.; Jameson, R.F.; Hubeny, I.; Fontaine, G. (2006) -
On the origin of the ultramassive white dwarf GD 50
Dobbie, P.D.; Napiwotzki, R.; Lodieu, N.; Burleigh, M.R.; Barstow, M.A.; Jameson, R.F. (2006) -
Optical spectroscopy of the candidate luminous white dwarf in the young Large Magellanic Cloud cluster NGC 1818
Burleigh, M.R.; Saffer, R.; Gilmore, G.F.; Napiwotzki, R. (1999)An optical spectrum of the Elson et al. (1998) candidate luminous white dwarf in the young LMC cluster NGC1818 shows conclusively that it is not a degenerate star. A model atmosphere fit gives Teff 31,500K and log g 4.4, ... -
The Origins of the Ultramassive White Dwarf GD50
Dobbie, P.D.; Napiwotzki, R.; Lodieu, N.; Burleigh, M.R.; Barstow, M.A.; Jameson, R.F. (Astronomical Society of the Pacific, 2007)On the basis of astrometric and spectroscopic data we argue that the ultramassive white dwarf GD 50 is associated with the star formation event that created the Pleiades and is potentially a former cluster member. Its ... -
Praesepe and the seven white dwarfs
Dobbie, P.D.; Pinfield, D.J.; Napiwotzki, R.; Hambly, N.C.; Burleigh, M.R.; Barstow, M.A.; Jameson, R.F.; Hubeny, I. (2004) -
The substellar companion in the eclipsing white dwarf binary SDSS J141126.20+200911.1
Littlefair, S.P.; Casewell, S.L.; Parsons, S.G.; Dhillon, V. S.; Marsh, T.R.; Gansicke, B.T.; Bloemen, S.; Catalan, Silvia; Irawati, P.; Hardy, L.K.; Mcallister, M.; Bours, M.C.P.; Richichi, A.; Burleigh, M.R.; Burningham, B.; Breedt, E.; Kerry, P. (2014-12-01)We present high time resolution SDSS-g′ and SDSS-z′ light curves of the primary eclipse in SDSS J141126.20+200911.1, together with time-resolved X-Shooter spectroscopy and near-infrared (NIR) JHKs photometry. Our observations ... -
A survey for post-common-envelope binary stars using GALEX and SDSS photometry
Maxted, P.F.L.; Gansicke, B.T.; Burleigh, M.R.; Southworth, J.; Marsh, T.R.; Napiwotzki, R.; Nelemans, G.; Wood, P.L. (2009)We report the first results of our programme to obtain multi-epoch radial velocity measurements of stars with a strong far-ultraviolet excess to identify post-common-envelope binaries (PCEBs). The targets have been identified ... -
Survival of a brown dwarf after engulfment by a red giant star
Maxted, P.F.L.; Napiwotzki, R.; Dobbie, P.D.; Burleigh, M.R. (2006)