Hogan, E., Jameson, R. F., Casewell, S. L., Osbourne, S. L., Hambly, N. C.
We present the results of a proper motion survey of the Hyades to search for brown dwarfs, based on UKIDSS and 2MASS data. This survey covers ~275 square degrees to depth of K~15 mag, equivalent to a...
Southern Infrared Proper Motion Survey III: Constraining the mass function of low mass stars (2008)
Deacon, N. R., Nelemans, G., Hambly, N. C.
The stellar mass function is one of the fundamental distributions of stellar astrophysics. Its form at masses similar to the Sun was found by Salpeter (1955) to be a power-law $m^{-\alpha}$ with a...
Trigonometric parallaxes of high velocity halo white dwarf candidates (2008)
Ducourant, C., Teixeira, R., Hambly, N.C., R. Oppenheimer, B., Hawkins, M.R.S., Rapaport, M., ...
The status of 38 halo white dwarf candidates identified by Oppenheimer et al. (2001) has been intensively discussed by various authors. In analyses undertaken to date, trigonometric parallaxes are...
Trigonometric parallaxes of high velocity halo white dwarf candidates (2008)
Ducourant, C., Teixeira, R., Hambly, N.C., R. Oppenheimer, B., Hawkins, M.R.S., Rapaport, M., ...
The status of 38 halo white dwarf candidates identified by Oppenheimer et al. (2001) has been intensively discussed by various authors. In analyses undertaken to date, trigonometric parallaxes are...
A New Ultracool White Dwarf Discovered in the SuperCOSMOS Sky Survey (2007)
Rowell, N., Kilic, M., Hambly, N. C.
We present photographic B, R and I photometry, and optical and near-infrared spectroscopy, of a new ultracool white dwarf (UCWD) discovered in the SuperCOSMOS Sky Survey. The spectrum of...
The WFCAM Science Archive (2007)
Hambly, N. C., Collins, R. S., Cross, N. J. G., Mann, R. G., Read, M. A., Sutorius, E. T. W., ...
We describe the WFCAM Science Archive (WSA), which is the primary point of access for users of data from the wide-field infrared camera WFCAM on the United Kingdom Infrared Telescope (UKIRT),...
Lodieu, N., Hambly, N. C., Jameson, R. F., Hodgkin, S. T.
We present near-infrared (1.15-2.50 microns) medium-resolution (R = 1700) spectroscopy of a sample of 23 brown dwarf candidates in the young Upper Sco association. We confirm membership of 21 brown...
A very cool brown dwarf in UKIDSS DR1 (2007)
Warren, S. J., Mortlock, D. J., Leggett, S. K., Pinfield, D. J., Homeier, D., Dye, S., ...
(abridged) We report the discovery of a very cool brown dwarf, ULAS J003402.77-005206.7 (ULAS J0034-00), identified in UKIDSS DR1. We provide optical, near-infrared, and mid-infrared photometry of...
Lodieu, N., Dobbie, P. D., Deacon, N. R., Hodgkin, S. T., Hambly, N. C., Jameson, R. F.
We present the results of a deep wide-field near-infrared survey of 12 square degrees of the Pleiades conducted as part of the UKIDSS Deep Infrared Sky Survey (UKIDSS) Galactic Cluster Survey (GCS)....
Proper motion L and T dwarf candidate members of the Pleiades (2007)
Casewell, S. L., Dobbie, P. D., Hodgkin, S. T., Moraux, E., Jameson, R. F., Hambly, N. C., ...
We present the results of a deep optical-near-infrared multi-epoch survey covering 2.5 square degrees of the Pleiades open star cluster to search for new very-low-mass brown dwarf members. A...
Trigonometric parallaxes of high velocity halo white dwarf candidates (2007)
Ducourant, C., Teixeira, R., Hambly, N. C., Oppenheimer, B. R., Hawkins, M. R. S., Rapaport, M., ...
The status of 38 halo white dwarf candidates identified by Oppenheimer et al. (2001) has been intensively discussed by various authors. In analyses undertaken to date, trigonometric parallaxes are...
The UKIRT Infrared Deep Sky Survey Second Data Release (2007)
Warren, S. J., Cross, N. J. G., Dye, S., Hambly, N. C., Almaini, O., Edge, A. C., ...
The UKIRT Infrared Deep Sky Survey (UKIDSS) is a set of five large near-infrared surveys, covering a complementary range of areas, depths, and Galactic latitudes. The UKIDSS Second Data Release (DR2)...
Southern Infrared Proper Motion Survey II: A sample of low mass stars with \mu > 0.1''/yr (2007)
We present details of the second part of the Southern Infrared Proper Motion Survey (SIPS). Here accurate relative astrometry allows us to reduce the minimum proper motion to 0.1 arcseconds per year....
Two T dwarfs from the UKIDSS Early Data Release (2007)
Kendall, T. R., Tamura, M., Tinney, C. G., Martin, E. L., Ishii, M., Pinfield, D. J., ...
We report on the first ultracool dwarf discoveries from the UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey Early Data Release (LAS EDR), in particular the discovery of T dwarfs which are...
The UKIRT infrared deep sky survey first data release. (2007)
Warren, S.J., Hambly, N.C., Dye, S., Almaini, O., Cross, N.J.G., Edge, A.C., ...
A very cool brown dwarf in UKIDSS DR1. (2007)
Warren, S.J., Mortlock, D.J., Leggett, S., Pinfield, D.J., Homeier, D., Dye, S., ...
The UKIRT infrared deep sky survey early data release (2006)
Dye, S., Warren, S.J., Hambly, N.C., Cross, N.J.G., Hodgkin, S.T., Irwin, M.J., ...
This paper defines the UKIRT Infrared Deep Sky Survey (UKIDSS) Early Data Release (EDR). UKIDSS is a set of five large near-infrared surveys being undertaken with the United Kingdom Infrared...
The UKIRT Infrared Deep Sky Survey First Data Release (2006)
Warren, S. J., Hambly, N. C., Dye, S., Almaini, O., Cross, N. J. G., Edge, A. C., ...
The First Data Release (DR1) of the UKIRT Infrared Deep Sky Survey (UKIDSS) took place on 2006 July 21. UKIDSS is a set of five large near-infrared surveys, covering a complementary range of areas,...
New brown dwarfs in Upper Sco using UKIDSS Galactic Cluster Survey science verification data (2006)
Lodieu, N., Hambly, N. C., Jameson, R. F., Hodgkin, S. T., Carraro, G., Kendall, T. R.
We present first results from a deep (J = 18.7), wide-field (6.5 square degrees) infrared (ZYJHK) survey in the Upper Sco association conducted within the science verification phase of the UKIRT...
New members in the Upper Sco association from the UKIDSS Early Data Release (2006)
Lodieu, N., Hambly, N. C., Jameson, R. F.
We present the results of a 9.3 square degree infrared (ZYJHK) survey in the Upper Scorpius association extracted from the UKIRT Infrared Deep Sky Survey (UKIDSS) Galactic Cluster Survey Early Data...
The possiblity of detection of Ultracool Dwarfs with the UKIRT Infrared Deep Sky Survey (2006)
We present predictions for the numbers of ultra--cool dwarfs in the Galactic disk population that could be detected by the WFCAM/UKIDSS Large Area Survey and Ultra Deep Survey. Simulated samples of...
The UKIRT Infrared Deep Sky Survey (UKIDSS) (2006)
Lawrence, A., Warren, S. J., Almaini, O., Edge, A. C., Hambly, N. C., Jameson, R. F., ...
We describe the goals, design, implementation, and initial progress of the UKIRT Infrared Deep Sky Survey (UKIDSS), a seven year sky survey which began in May 2005, using the UKIRT Wide Field Camera....
The UKIRT Infrared Deep Sky Survey Early Data Release (2006)
Dye, S., Warren, S. J., Hambly, N. C., Cross, N. J. G., Hodgkin, S. T., Irwin, M. J., ...
This paper defines the UKIRT Infrared Deep Sky Survey (UKIDSS) Early Data Release (EDR). UKIDSS is a set of five large near-infra-red surveys defined by Lawrence et al. (2006), being undertaken with...
The Aao/Ukst Supercosmos H-alpha Survey (SHS) (2005)
Parker, Q. A., Phillipps, S., Pierce, M. J., Hartley, M., Hambly, N. C., Read, M. A., ...
The UK Schmidt Telescope (UKST) of the Anglo-Australian Observatory completed a narrow-band H-alpha plus [NII] 6548, 6584A survey of the Southern Galactic Plane and Magellanic Clouds in late 2003....
The Aao/Ukst Supercosmos H-alpha Survey (SHS) (2005)
Parker, Q. A., Phillipps, S., Pierce, M. J., Hartley, M., Hambly, N. C., Read, M. A., ...
The UK Schmidt Telescope (UKST) of the Anglo-Australian Observatory completed a narrow-band H-alpha plus [NII] 6548, 6584A survey of the Southern Galactic Plane and Magellanic Clouds in late 2003....
The Aao/Ukst Supercosmos H-alpha Survey (SHS) (2005)
Parker, Q. A., Phillipps, S., Pierce, M. J., Hartley, M., Hambly, N. C., Read, M. A., ...
The UK Schmidt Telescope (UKST) of the Anglo-Australian Observatory completed a narrow-band H-alpha plus [NII] 6548, 6584A survey of the Southern Galactic Plane and Magellanic Clouds in late 2003....
The Aao/Ukst Supercosmos H-alpha Survey (SHS) (2005)
Parker, Q. A., Phillipps, S., Pierce, M. J., Hartley, M., Hambly, N. C., Read, M. A., ...
The UK Schmidt Telescope (UKST) of the Anglo-Australian Observatory completed a narrow-band H-alpha plus [NII] 6548, 6584A survey of the Southern Galactic Plane and Magellanic Clouds in late 2003....
The AAO/UKST SuperCOSMOS Ha survey. (2005)
Parker, Q.A., Phillipps, S., Pierce, M.J., Hartley, M., Read, M.A., MacGillivray, H.T., ...
Deacon, N. R., Hambly, N. C., Cooke, J. A.
We present the first results from the Southern Infrared Proper Motion Survey. Using 2 Micron All Sky Survey data along with that of the SuperCOSMOS sky survey we have been able to produce the first...
Praesepe and the seven white dwarfs (2004)
Dobbie, P. D., Pinfield, D. J., Napiwotzki, R., Hambly, N. C., Burleigh, M. R., Barstow, M. A., ...
We report the discovery, from our preliminary survey of the Praesepe open cluster, of two new spectroscopically confirmed white dwarf candidate members. We derive the effective temperatures and...
Hambly, N. C., Henry, T. J., Subasavage, J., Brown, M.
Five new objects with proper motions between 1.0 arcsec/yr and 2.6 arcsec/yr have been discovered via a new RECONS search for high proper motion stars utilizing the SuperCOSMOS Sky Survey. The first...
Praesepe and the seven white dwarfs. (2004)
Dobbie, P.D., Pinfield, D.J., Napiwotzki, R., Hambly, N.C., Burleigh, M.R., Barstow, M.A., ...
Proper motion surveys of the young open clusters Alpha Persei and the Pleiades (2003)
In this paper we present surveys of two open clusters using photometry and accurate astrometry from the SuperCOSMOS microdensitometer. These use plates taken by the Palomar Oschin Schmidt Telescope...
Cleaning sky survey databases using Hough Transform and Renewal String approaches (2003)
Storkey, A. J., Hambly, N. C., Williams, C. K. I., Mann, R. G.
Large astronomical databases obtained from sky surveys such as the SuperCOSMOS Sky Survey (SSS) invariably suffer from spurious records coming from artefactual effects of the telescope, satellites...
Observations Of Ultracool White Dwarfs (2001)
B. R. Oppenheimer, S. T. Hodgkin, R. F. Jameson, N. C. Hambly, A. V. Filippenko, M. E. Brown
We present new spectroscopic and photometric measurements of the white dwarfs LHS 3250 and WD 0346]246. Along with F351[50, these white dwarfs are the coolest ones known, all with e+ective...
Photometry and membership for low mass stars in the young open cluster NGC 2516 (2001)
Jeffries, R. D., Thurston, M. R., Hambly, N. C.
We present the results of a 0.86 square degree CCD photometric survey of the open cluster NGC 2516, which has an age of about 150 Myr and may have a much lower metallicity than the similarly-aged...
Oppenheimer, B. R., Hambly, N. C., Digby, A. P., Hodgkin, S. T., Saumon, D.
We reply to the criticism of Gibson & Flynn and of Graff regarding "Direct detection of galactic halo dark matter" by Oppenheimer et al. (2001) (Science, Vol. 292, p. 698), which reported on the...
Direct Detection of Galactic Halo Dark Matter (2001)
Oppenheimer, B. R., Hambly, N. C., Digby, A. P., Hodgkin, S. T., Saumon, D.
The Milky Way Galaxy contains a large, spherical component which is believed to harbor a substantial amount of unseen matter. Recent observations indirectly suggest that as much as half of this...
Observations of Ultracool White Dwarfs (2001)
Oppenheimer, B. R., Saumon, D., Hodgkin, S. T., Jameson, R. F., Hambly, N. C., Chabrier, G., ...
We present new spectroscopic and photometric measurements of the white dwarfs LHS 3250 and WD 0346+246. Along with F351-50, these white dwarfs are the coolest ones known, all with effective...
PSR J1740-3052 - a pulsar with a massive companion (2000)
Stairs, I. H., Manchester, R. N., Lyne, A. G., Kaspi, V. M., Camilo, F., Bell, J. F., ...
We report on the discovery of a binary pulsar, PSR J1740-3052, during the Parkes multibeam survey. Timing observations of the 570-ms pulsar at Jodrell Bank and Parkes show that it is young, with a...
Measurement of intrinsic alignments in galaxy ellipticities (2000)
Brown, M. L., Taylor, A. N., Hambly, N. C., Dye, S.
We measure the alignment of galaxy ellipticities in the local universe over a range of scales using digitized photographic data from the SuperCOSMOS Sky Survey. We find for a magnitude cut of b_J <...
A Survey for Cool White Dwarfs and the age of the Galactic Disc (1999)
Knox, R. A., Hawkins, M. R. S., Hambly, N. C
We describe a new multi-colour proper motion survey for cool white dwarfs (CWDs). The observational database consists of ~300 digitally scanned Schmidt plates in ESO/SERC field 287. The entire survey...