Physics & Astrophysics
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After an undergraduate degree in Physics at Oxford I did a PhD at the Mullard Space Science Lab of University College London, specialising in understanding interacting binary stars. I was later a Hubble Fellow at the University of Texas at Austin before taking a Lectureship in Astrophysics at Keele.
I lead Keele's involvement in the WASP (Wide Angle Search for Planets) project, searching for planets around other stars. We operate the WASP-South observatory, which monitors hundreds of thousands of stars looking for small dips in their lightcurves when a planet transits in front of its star. WASP-South has now found many of the brightest transiting exoplanets in the Southern hemisphere.
See personal website for further information.
Selected Publications
Full Publications List show
Journal Articles
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2007. Why Do Some Intermediate Polars Show Soft X-Ray Emission? A Survey of XMM-Newton Spectra. The Astrophysical Journal, vol. 663(1), 1277–1284. doi>
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2007. WASP-1b and WASP-2b: two new transiting exoplanets detected with SuperWASP and SOPHIE. Monthly Notices of the Royal Astronomical Society, vol. 375(3), 951-957. doi>
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2006. The WASP Project and the SuperWASP Cameras. The Publications of the Astronomical Society of the Pacific, vol. 118(848), 1407-1418. doi>
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2004. On the iron Kα complex in magnetic cataclysmic variables. Monthly Notices of the Royal Astronomical Society, vol. 352(3), 1037-1040. doi>
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2004. The non-radially pulsating primary of the cataclysmic variable GW Librae. Monthly Notices of the Royal Astronomical Society. doi>
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2004. Twisted accretion curtains in the intermediate polar FO Aquarii. Monthly Notices of the Royal Astronomical Society. doi>
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2004. On the magnetic accretor GK Persei outburst. Monthly Notices of the Royal Astronomical Society. doi>
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2004. The X-ray binary X2127+119 in M15: evidence for a very low mass, stripped-giant companion. Monthly Notices of the Royal Astronomical Society. doi>
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2003. A 6.3 superhump in the cataclysmic variable TV Columbae: the longest yet seen. Monthly Notices of the Royal Astronomical Society. doi>
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2002. On the accretion mode of the intermediate polar V1025 Centauri. Monthly Notices of the Royal Astronomical Society, 84-92. doi>
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2002. The accretion flow in the discless intermediate polar V2400 Ophiuchi. Monthly Notices of the Royal Astronomical Society, vol. 331(2), 407-416. doi>
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2002. The spin pulse of the intermediate polar V1062 Tauri. Astronomy and Astrophysics, 904-907. doi>
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2002. X-ray/optical studies of two outbursts of the intermediate polar YY (DO) Draconis. Astrophysical Journal, 413-419. doi>
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2000. A TiO study of the dwarf nova IP Pegasi. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 318(1), 9-17. link>
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1999. YY Draconis and V709 Cassiopeiae: two intermediate polars with weak magnetic fields. ASTRONOMY & ASTROPHYSICS, vol. 347(1), 203-211. link>
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1997. An outburst of the magnetic cataclysmic variable XY Arietis observed with RXTE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 292(2), 397-406. link>
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1997. The size of the accretion region in intermediate polars: eclipses of XY Arietis observed with RXTE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 291(1), 71-80. link>
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1997. Stream-fed and disc-fed accretion in TX Columbae. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 289(2), 362-370. link>
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1997. Spectroscopy of the intermediate polars BC Canis Minoris and PQ Geminorum. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 288(4), 817-832. link>
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1997. The intricate optical line behaviour of the nova-like system V795 Herculis. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 286(2), 447-462. link>
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1996. Infrared photometry of the intermediate polar XY Arietis (H0253+193). MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 282(2), 699-703. link>
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1996. The X-ray spectrum of the intermediate polar AO Piscium. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 280(3), 877-887. link>
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1996. The spin period of the intermediate polar RX J0558+53. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 279(4), 1345-1348. link>
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1995. OPTICAL-PROPERTIES OF THE NEW POLAR RXJ1940.2-1025. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 273(3), 681-698. link>
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1994. A ROSAT OBSERVATION OF THE X-RAY PULSARS X0142+614 AND X0146+612. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 271(2), L21-L24. link>
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1994. AN EPHEMERIS FOR THE INTERMEDIATE POLAR RE-0751+14. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 271(2), L25-L29. link>
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1994. WX ARIETIS - A LOW-INCLINATION SW SEXTANTIS STAR. ASTRONOMY & ASTROPHYSICS, vol. 289(1), 148. link>
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1994. A 60-NIGHT CAMPAIGN ON DWARF NOVAE .1. PHOTOMETRIC VARIABILITY OF SU UMA AND YZ CNC. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 267(3), 465-472. link>
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1993. DISC-OVERFLOW ACCRETION IN THE INTERMEDIATE POLAR FO AQUARII. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 265(3), L35-L39. link>
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1993. TV COLUMBAE IN OUTBURST - A MASS-TRANSFER EVENT. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 265(3), 766-772. link>
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1993. THE 4 PERIODICITIES OF THE CATACLYSMIC VARIABLE TV COLUMBAE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 264(1), 132-144. link>
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1993. X-RAY ORBITAL MODULATIONS IN INTERMEDIATE POLARS. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 260(2), 299-306. link>
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1993. THE ROSAT WIDE FIELD CAMERA ALL-SKY SURVEY OF EXTREME-ULTRAVIOLET SOURCES .1. THE BRIGHT SOURCE CATALOG. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 260(1), 77-102. link>
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1992. A SEARCH FOR THE 2-OMEGA OMEGA FREQUENCY IN THE X-RAY LIGHT CURVES OF INTERMEDIATE POLARS. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 258(3), 578-580. link>
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1992. ENERGY STRUCTURE OF THE ACCRETION DISK CORONA IN X 1822-371. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 258(3), 457-460. link>
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1991. DO OBSERVATIONS REVEAL ACCRETION DISKS IN INTERMEDIATE POLARS. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 251(4), 693-697. link>
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1991. AN ECLIPSE IN THE QUADRUPLE-PERIOD INTERMEDIATE POLAR TV COLUMBAE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 248(2), P5-P7. link>
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1991. OPTICAL AND X-RAY OBSERVATIONS OF AO PISCIUM AND THE ORIGIN OF THE SPIN PULSE IN INTERMEDIATE POLARS. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 248(2), 233-+. link>
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1990. THE EPHEMERIS OF X-1822-371. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 244(3), P39-P43. link>
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1990. SPECTROSCOPY OF THE INTERMEDIATE POLAR FO-AQUARII. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 242(2), 250-&. link>
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1990. IS V426 OPHIUCHI REALLY AN INTERMEDIATE POLAR. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 242(1), P32-P34. link>
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1989. SPECTROSCOPIC AND PHOTOMETRIC-OBSERVATIONS OF SN1987A .6. DAYS 617 TO 792. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 240(2), P7-P24. link>
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1989. EXOSAT OBSERVATIONS OF X-1822-371 - MODELING OF THE ACCRETION DISK RIM. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 239(3), 715-732. link>
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1989. EX HYDRAE IN OUTBURST. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 238(3), 1107-&. link>
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1989. AN ECLIPSE IN FO AQUARII. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 237(1), P39-P44. link>
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1989. SPECTROSCOPIC AND PHOTOMETRIC-OBSERVATIONS OF SN1987A .5. DAYS 386-616. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 237(1), P55-P68. link>
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1987. TIME RESOLVED OPTICAL SPECTROSCOPY OF THE ECLIPSING INTERMEDIATE POLAR EX HYDRAE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 228(2), 463-&. link>
Other
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2007. Monitoring variable white dwarfs with WASP. 15TH EUROPEAN WORKSHOP ON WHITE DWARFS, PROCEEDINGS (vol. 372, pp. 157-160). link>
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2007. The color of noise in SuperWASP data and the implications for finding extrasolar planets. Transiting Extrasolar Planets Workshop (vol. 366, pp. 152-157). link>
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2005. Current status of the SuperWasp project. Proceedings of the 13th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - Proceedings, Vols 1 and 2 (vol. 560, pp. 475-477). link>
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2005. Variables in the pleiades and hyades from superWASP-I commissioning data. Proceedings of the 13th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - Proceedings, Vols 1 and 2 (vol. 560, pp. 763-765). link>
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2005. What can XMM-Newton tell us about the spin periods of intermediate polars?. Astrophysics of Cataclysmic Variables and Related Objects (vol. 330, pp. 165-170). link>
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2004. SuperWASP 1 (La Palma). Astronomische Nachtrichten.
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2001. Does TV Col have the longest recorded positive superhumps?. EVOLUTION OF BINARY AND MULTIPLE STAR SYSTEMS (vol. 229, pp. 391-395). link>
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2001. On echo outbursts and ER UMa supercycles in SUUMa-type cataclysmic variables. EVOLUTION OF BINARY AND MULTIPLE STAR SYSTEMS (vol. 229, pp. 385-389). link>
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1999. On the nature of the new below-gap intermediate polar RX J1238-38. ANNAPOLIS WORKSHOP ON MAGNETIC CATACLYSMIC VARIABLES (vol. 157, pp. 51-56). link>
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1999. Optical spectroscopy of the intermediate polar RX J1238-38: evidence for disc overflow?. ANNAPOLIS WORKSHOP ON MAGNETIC CATACLYSMIC VARIABLES (vol. 157, pp. 57-59). link>
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1999. Recent results on intermediate polars. ANNAPOLIS WORKSHOP ON MAGNETIC CATACLYSMIC VARIABLES (vol. 157, pp. 1-14). link>
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1998. An RXTE observation of the intermediate polar XY Arietis. ACTIVE X-RAY SKY (pp. 364-367). link>
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1997. Mapping the accretion stream in eclipsing Polars. WILD STARS IN THE OLD WEST (vol. 137, pp. 511-512). link>
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1997. The 1996 outburst of GRO J1655-40. WILD STARS IN THE OLD WEST (vol. 137, pp. 509-510). link>
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1997. The phase 0.5 absorption in SW Sextantis stars. WILD STARS IN THE OLD WEST (vol. 137, pp. 535-536). link>
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1997. Time-resolved optical spectroscopy of V795 Herculis. ACCRETION PHENOMENA AND RELATED OUTFLOWS (vol. 121, pp. 697-698). link>
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1996. The intermediate polars. CATACLYSMIC VARIABLES AND RELATED OBJECTS (vol. 208, pp. 143-152). link>
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1995. The accretion geometry of intermediate polars. CAPE WORKSHOP ON MAGNETIC CATACLYSMIC VARIABLES (vol. 85, pp. 185-195). link>
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1994. AN EPHEMERIS UPDATE FOR X 1822-371. EVOLUTION OF X-RAY BINARIES (pp. 535-538). link>
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1994. Multi-color photometry of the intermediate polar RE 0751+14. INTERACTING BINARY STARS (vol. 56, pp. 334-337). link>
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1992. EXPLAINING INTERMEDIATE POLARS WITH DISKS. VINA DEL MAR WORKSHOP ON CATACLYSMIC VARIABLE STARS (vol. 29, pp. 246-251). link>
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1992. OBSERVATIONS OF SU UMA THROUGH SEVERAL OUTBURSTS. VINA DEL MAR WORKSHOP ON CATACLYSMIC VARIABLE STARS (vol. 29, pp. 148-152). link>
- PHY-10010 Mechanics, Gravity and Relativity (Module leader)
- PHY-10005 Electricity and Stellar Structure (Module leader)
- PHY-20002 Stellar Astrophysics (Module leader)
- PHY-30001 Cosmology (Module leader)

