All Outputs (215)

The EBLM project: I. Physical and orbital parameters, including spin-orbit angles, of two low-mass eclipsing binaries on opposite sides of the brown dwarf limit (2012)
Journal Article
Triaud, A. H. M. J., Hebb, L., Anderson, D. R., Cargile, P., Collier Cameron, A., Doyle, A. P., …West, R. G. (2013). The EBLM project: I. Physical and orbital parameters, including spin-orbit angles, of two low-mass eclipsing binaries on opposite sides of the brown dwarf limit. Astronomy & Astrophysics, 549, A18. https://doi.org/10.1051/0004-6361/201219643

This paper introduces a series of papers aiming to study the dozens of low-mass eclipsing binaries (EBLM), with F, G, K primaries, that have been discovered in the course of the WASP survey. Our objects are mostly single-line binaries whose eclipses... Read More about The EBLM project: I. Physical and orbital parameters, including spin-orbit angles, of two low-mass eclipsing binaries on opposite sides of the brown dwarf limit.

Accurate spectroscopic parameters of WASP planet host stars★ (2012)
Journal Article
Doyle, A. P., Smalley, B., Maxted, P. F. L., Anderson, D. R., Cameron, A. C., Gillon, M., …West, R. G. (2013). Accurate spectroscopic parameters of WASP planet host stars★. Monthly Notices of the Royal Astronomical Society, 428(4), 3164-3172. https://doi.org/10.1093/mnras/sts267

We have made a detailed spectral analysis of 11 Wide Angle Search for Planets (WASP) planet host stars using high signal-to-noise ratio (S/N) HARPS spectra. Our line list was carefully selected from the spectra of the Sun and Procyon, and we made a c... Read More about Accurate spectroscopic parameters of WASP planet host stars★.

Spitzer 3.6 and 4.5 mu m full-orbit light curves of WASP-18 (2012)
Journal Article
Maxted, P., Anderson, D. R., Doyle, A. P., Gillon, M., Harrington, J., Iro, N., …Southworth, J. (2013). Spitzer 3.6 and 4.5 mu m full-orbit light curves of WASP-18. Monthly Notices of the Royal Astronomical Society, 428(3), 2645-2660. https://doi.org/10.1093/mnras/sts231

We present new lightcurves of the massive hot Jupiter system WASP-18 obtained with the Spitzer spacecraft covering the entire orbit at 3.6 micron and 4.5 micron. These lightcurves are used to measure the amplitude, shape and phase of the thermal phas... Read More about Spitzer 3.6 and 4.5 mu m full-orbit light curves of WASP-18.

WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus (2012)
Journal Article
Smalley, B., R. Anderson, D., Collier-Cameron, A., P. Doyle, A., Fumel, A., Gillon, M., …G. West, R. (2012). WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus. Astronomy and Astrophysics, 547, Article A61. https://doi.org/10.1051/0004-6361/201219731

We report the discovery of WASP-78b and WASP-79b, two highly-bloated Jupiter-mass exoplanets orbiting F-type host stars. WASP-78b orbits its V=12.0 host star (TYC 5889-271-1) every 2.175 days and WASP-79b orbits its V=10.1 host star (CD-30 1812) ever... Read More about WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus.

EChO - Exoplanet Characterisation Observatory (2012)
Journal Article
Tinetti, G., Beaulieu, J., Henning, T., Meyer, M., Micela, G., Ribas, I., …Yurchenko, S. (2012). EChO - Exoplanet Characterisation Observatory. Experimental Astronomy, 34, 311-353. https://doi.org/10.1007/s10686-012-9303-4

A dedicated mission to investigate exoplanetary atmospheres represents a major milestone in our quest to understand our place in the universe by placing our Solar System in context and by addressing the suitability of planets for the presence of life... Read More about EChO - Exoplanet Characterisation Observatory.

SuperWASP observations of pulsating Am stars (2011)
Journal Article
Smalley, B., Kurtz, D., Smith, A. S., Fossati, L., Anderson, D., Barros, S. C., …Wood, P. L. (2011). SuperWASP observations of pulsating Am stars. Astronomy & Astrophysics, 535, Article A3. https://doi.org/10.1051/0004-6361/201117230

We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating delta Sct and gamma Dor stars, with low amplitudes that have been mis... Read More about SuperWASP observations of pulsating Am stars.

WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system (2011)
Journal Article
Smalley, B., R. Anderson, D., Collier Cameron, A., Hellier, C., Lendl, M., F. L. Maxted, P., …Bento, J. (2011). WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201015992

We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038 +/- 0.012). We find a planeta... Read More about WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system.

WASP-26b: A 1-Jupiter-mass planet around an early-G-type star (2010)
Journal Article
Smalley, B., R. Anderson, D., Collier Cameron, A., Gillon, M., Hellier, C., A. Lister, T., …Bento, J. (2010). WASP-26b: A 1-Jupiter-mass planet around an early-G-type star. Astronomy & Astrophysics, 520, Article A56. https://doi.org/10.1051/0004-6361/201014705

We report the discovery of WASP-26b, a moderately over-sized Jupiter-mass exoplanet transiting its 11.3-magnitude early-G-type host star (1SWASP J001824.70-151602.3; TYC 5839-876-1) every 2.7566 days. A simultaneous fit to transit photometry and radi... Read More about WASP-26b: A 1-Jupiter-mass planet around an early-G-type star.

Kinematic structure in the young σ Orionis association (2006)
Journal Article
Jeffries, R., Maxted, P., Oliveira, J., & Naylor, T. (2006). Kinematic structure in the young σ Orionis association. Monthly Notices of the Royal Astronomical Society, 371(1), L6 - L10. https://doi.org/10.1111/j.1745-3933.2006.00196.x

We have used precise radial velocity measurements for a large number of candidate low-mass stars and brown dwarfs, to show that the young Sigma Ori ``cluster'' consists of two spatially superimposed components which are kinematically separated by 7 k... Read More about Kinematic structure in the young σ Orionis association.

Membership, binarity and accretion among very low-mass stars and brown dwarfs of the s Orionis cluster (2005)
Journal Article
Kenyon, M., Jeffries, R., Naylor, T., Oliveira, J., & Maxted, P. (2005). Membership, binarity and accretion among very low-mass stars and brown dwarfs of the s Orionis cluster. Monthly Notices of the Royal Astronomical Society, 356(1), 89 -106. https://doi.org/10.1111/j.1365-2966.2004.08455.x

Intermediate resolution (R=7000) spectroscopy is presented for 76 photometrically selected very low mass (0.04

Accurate fundamental parameters of eclipsing binary stars (2004)
Journal Article
Southworth, J., Smalley, B., Maxted, P., & Etzel, P. (2004). Accurate fundamental parameters of eclipsing binary stars. Proceedings of the International Astronomical Union, 2004(IAUS224), 548-561. https://doi.org/10.1017/S1743921305009324

The study of detached eclipsing binaries is one of the most powerful ways to investigate the properties of individual stars and stellar systems. We present preliminary masses, radii and effective temperatures for the eclipsing binary WW Aurigae, whic... Read More about Accurate fundamental parameters of eclipsing binary stars.

Eclipsing binaries in open clusters (2003)
Conference Proceeding
Southworth, J., Maxted, P., & Smalley, B. (2003). Eclipsing binaries in open clusters.

Accurate physical parameters have been determined for two early-type detached eclipsing binaries in the open cluster h Persei (NGC 869). Masses accurate to 1.5% are derived from high-resolution spectroscopy and radii accurate to 4--6% have been obtai... Read More about Eclipsing binaries in open clusters.

The host galaxy of GRB010222: the strongest damped Lyman-alpha system known (2001)
Journal Article
Maxted, P. (2001). The host galaxy of GRB010222: the strongest damped Lyman-alpha system known

Analysis of the absorption lines in the afterglow spectrum of the gamma-ray burst GRB010222 indicates that its host galaxy (at a redshift of z=1.476) is the strongest damped Lyman-alpha (DLA) system known, having a very low metallicity and modest dus... Read More about The host galaxy of GRB010222: the strongest damped Lyman-alpha system known.

Emission from the secondary star in the old CV WZ Sge (2001)
Journal Article
Maxted. (2001). Emission from the secondary star in the old CV WZ Sge. Astrophysical Journal, 145-148. https://doi.org/10.1086/338107

We present the first detection of the mass donor star in the cataclysmic variable WZ Sge. Phase resolved spectroscopy reveals narrow Balmer emission components from the irradiated secondary star during the 2001 outburst. Its radial velocity curve ind... Read More about Emission from the secondary star in the old CV WZ Sge.

WASP-193b: An extremely low-density super-Neptune
Journal Article
Barkaoui, K., J. Pozuelos, F., Hellier, C., Smalley, B., D. Nielsen, L., Dorn, C., …G. West, R. WASP-193b: An extremely low-density super-Neptune. arXiv,

Gas giants transiting bright nearby stars are stepping stones for our understanding of planetary system formation and evolution mechanisms. This paper presents a particularly interesting new specimen of this kind of exoplanet discovered by the WASP-S... Read More about WASP-193b: An extremely low-density super-Neptune.