Exploring the substellar temperature regime down to ~550K (2008)
Burningham, Ben, Pinfield, D. J., Leggett, S. K., Tamura, M., Lucas, P. W., Homeier, D., ...
We report the discovery of three very late T dwarfs in the UKIRT Infrared Deep Sky Survey (UKIDSS) Third Data Release: ULAS J101721.40+011817.9 (ULAS1017), ULAS J123828.51+095351.3 (ULAS1238) and...
Can variability account for apparent age spreads in OB association colour-magnitude diagrams? (2005)
Burningham, Ben, Naylor, Tim, Littlefair, S. P., Jeffries, R. D.
We have investigated the role of photometric variability in causing the apparent age spreads observed in the colour-magnitude diagrams of OB associations. We have found that the combination of...
Do accretion discs regulate the rotation of young stars? (2005)
Littlefair, S. P., Naylor, Tim, Burningham, Ben, Jeffries, R. D.
We present a photometric study of I-band variability in the young cluster IC 348. The main purpose of the study was to identify periodic stars. In all we find 50 periodic stars, of which 32 were...
Contamination and exclusion in the sigma Orionis young group (2004)
Burningham, Ben, Naylor, Tim, Littlefair, S. P., Jeffries, R. D.
We present radial velocities for 38 low-mass candidate members of the sigma Orionis young group. We have measured their radial velocities by cross-correlation of high resolution (R~6000) AF2/WYFFOS...
On the Nature of Collinder 121: Insights from the Low-Mass Pre-Main Sequence (2003)
Burningham, Ben, Naylor, Tim, Jeffries, R. D., Devey, C. R.
We present a VI photometric catalogue towards the open cluster Cr 121. XMM-Newton and ROSAT data are used to discover a low-mass pre-main sequence (PMS) along this sight-line. de Zeeuw et al (1999)...