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Physical properties of the planetary systemsWASP-45 and WASP-46 from simultaneous multiband photometry (2015)
Journal Article
Ciceri, S., Mancini, L., Southworth, J., Lendl, M., Tregloan-Reed, J., Brahm, R., …Wertz, O. (2016). Physical properties of the planetary systemsWASP-45 and WASP-46 from simultaneous multiband photometry. Monthly Notices of the Royal Astronomical Society, 456(1), 990 -1002. https://doi.org/10.1093/mnras/stv2698

Accurate measurements of the physical characteristics of a large number of exoplanets are useful to strongly constrain theoretical models of planet formation and evolution, which lead to the large variety of exoplanets and planetary-system configurat... Read More about Physical properties of the planetary systemsWASP-45 and WASP-46 from simultaneous multiband photometry.

Doppler imaging of the planetary debris disc at the white dwarf SDSS J122859.93+104032.9 (2015)
Journal Article
Manser, C. J., Gänsicke, B. T., Marsh, T. R., Veras, D., Koester, D., Breedt, E., …Southworth, J. (2016). Doppler imaging of the planetary debris disc at the white dwarf SDSS J122859.93+104032.9. Monthly Notices of the Royal Astronomical Society, 455(4), 4467 -4478. https://doi.org/10.1093/mnras/stv2603

Debris discs which orbit white dwarfs are signatures of remnant planetary systems. We present 12 yr of optical spectroscopy of the metal-polluted white dwarf SDSS J1228+1040, which shows a steady variation in the morphology of the 8600?Å Ca?II triple... Read More about Doppler imaging of the planetary debris disc at the white dwarf SDSS J122859.93+104032.9.

Rotation periods and astrometric motions of the Luhman 16AB brown dwarfs by high-resolution lucky-imaging monitoring (2015)
Journal Article
Mancini, L., Giacobbe, P., Littlefair, S., Southworth, J., Bozza, V., Damasso, M., …Wertz, O. (2015). Rotation periods and astrometric motions of the Luhman 16AB brown dwarfs by high-resolution lucky-imaging monitoring. Astronomy & Astrophysics, 584, Article A104. https://doi.org/10.1051/0004-6361/201526899

Context. Photometric monitoring of the variability of brown dwarfs can provide useful information about the structure of clouds in their cold atmospheres.The brown-dwarf binary system Luhman?16AB is an interesting target for such a study, because its... Read More about Rotation periods and astrometric motions of the Luhman 16AB brown dwarfs by high-resolution lucky-imaging monitoring.

Larger and faster: revised properties and a shorter orbital period for the WASP-57 planetary system from a pro-am collaboration (2015)
Journal Article
Southworth, J., Mancini, L., Tregloan-Reed, J., Calchi Novati, S., Ciceri, S., D'Ago, G., …Wertz, O. (2015). Larger and faster: revised properties and a shorter orbital period for the WASP-57 planetary system from a pro-am collaboration. Monthly Notices of the Royal Astronomical Society, 454(3), 3094 -3107. https://doi.org/10.1093/mnras/stv2183

Transits in the WASP-57 planetary system have been found to occur half an hour earlier than expected. We present 10 transit light curves from amateur telescopes, on which this discovery was based, 13 transit light curves from professional facilities... Read More about Larger and faster: revised properties and a shorter orbital period for the WASP-57 planetary system from a pro-am collaboration.

Red Noise Versus Planetary Interpretations In The Microlensing Event OGLE-2013-BLG-446 (2015)
Journal Article
Bachelet, E., Bramich, D., Han, C., Greenhill, J., Street, R., Gould, A., …Wertz, O. (2015). Red Noise Versus Planetary Interpretations In The Microlensing Event OGLE-2013-BLG-446. Astrophysical Journal, 812(2), Article 136. https://doi.org/10.1088/0004-637X/812/2/136

For all exoplanet candidates, the reliability of a claimed detection needs to be assessed through a careful study of systematic errors in the data to minimize the false positives rate. We present a method to investigate such systematics in microlensi... Read More about Red Noise Versus Planetary Interpretations In The Microlensing Event OGLE-2013-BLG-446.

HD183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component (2015)
Conference Proceeding
Derekas, A., Borkovits, T., Fuller, J., Szabó, G., Pavlovski, K., Csák, B., …Jankovics, I. (2015). HD183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component. In EPJ Web of Conferences. https://doi.org/10.1051/epjconf/201510106021

IC 8560861 (HD 183648) is a marginally eccentric (e = 0.05) eclipsing binary with an orbital period of Porb = 31.973 d, exhibiting mmag amplitude pulsations on time scales of a few days. We present the results of the complex analysis of high and medi... Read More about HD183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component.

Lamost Observations In The Kepler Field. I. Database Of Low-resolution Spectra (2015)
Journal Article
De Cat, P., Fu, J., Ren, A., Yang, X., Shi, J., Luo, A., …Zhou, X. (2015). Lamost Observations In The Kepler Field. I. Database Of Low-resolution Spectra. Astrophysical Journal Supplement, 220(1), Article 19. https://doi.org/10.1088/0067-0049/220/1/19

The nearly continuous light curves with micromagnitude precision provided by the space mission Kepler are revolutionizing our view of pulsating stars. They have revealed a vast sea of low-amplitude pulsation modes that were undetectable from Earth. T... Read More about Lamost Observations In The Kepler Field. I. Database Of Low-resolution Spectra.

Multiple star systems observed with CoRoT and Kepler (invited review) (2015)
Conference Proceeding
Southworth, J. (2015). Multiple star systems observed with CoRoT and Kepler (invited review). . https://doi.org/10.1051/epjconf/201510104001

The CoRoT and Kepler satellites were the first space platforms designed to perform high-precision photometry for a large number of stars. Multiple systems display a wide variety of photometric variability, making them natural benefactors of these mis... Read More about Multiple star systems observed with CoRoT and Kepler (invited review).

The GAPS programme with HARPS-N at TNG IX. The multi-planet system KELT-6: Detection of the planet KELT-6 c and measurement of the Rossiter-McLaughlin effect for KELT-6 b (2015)
Journal Article
Damasso, M., Esposito, M., Nascimbeni, V., Desidera, S., Bonomo, A., Bieryla, A., …Zanmar Sanchez, R. (2015). The GAPS programme with HARPS-N at TNG IX. The multi-planet system KELT-6: Detection of the planet KELT-6 c and measurement of the Rossiter-McLaughlin effect for KELT-6 b. Astronomy & Astrophysics, 581, Article L6. https://doi.org/10.1051/0004-6361/201526995

Aims. For more than 1.5 years we spectroscopically monitored the star KELT-6 (BD+31?2447), which is known to host the transiting hot-Saturn KELT-6?b, because a previously observed long-term trend in radial velocity time series suggested that there is... Read More about The GAPS programme with HARPS-N at TNG IX. The multi-planet system KELT-6: Detection of the planet KELT-6 c and measurement of the Rossiter-McLaughlin effect for KELT-6 b.

KIC 9533489: a genuine gamma Doradus - delta Scuti Kepler hybrid pulsator with transit events (2015)
Journal Article
Bognár, Z., Lampens, P., Frémat, Y., Taylor, J., Sódor, Á., De Cat, P., …Martín-Fernández, P. (2015). KIC 9533489: a genuine gamma Doradus - delta Scuti Kepler hybrid pulsator with transit events. Astronomy & Astrophysics, 581, Article A77. https://doi.org/10.1051/0004-6361/201526154

Context. Several hundred candidate hybrid pulsators of type A–F have been identified from space-based observations. Their large number allows both statistical analyses and detailed investigations of individual stars. This offers the opportunity to st... Read More about KIC 9533489: a genuine gamma Doradus - delta Scuti Kepler hybrid pulsator with transit events.

Double riches: asteroseismology in eclipsing binaries (2015)
Journal Article
Southworth, J. (2015). Double riches: asteroseismology in eclipsing binaries. Proceedings of the International Astronomical Union, 11, 628 - 635. https://doi.org/10.1017/S1743921316006220

The study of eclipsing binaries is our primary source of measured properties of normal stars, achieved through analysis of light and radial velocity curves of eclipsing systems. The study of oscillations and pulsations is increasingly vital for deter... Read More about Double riches: asteroseismology in eclipsing binaries.

A New sdo plus DM Binary With Extreme Eclipses And Reflection Effect (2015)
Journal Article
Derekas, A., Németh, P., Southworth, J., Borkovits, T., Sárneczky, K., Pál, A., …Kriskovics, L. (2015). A New sdo plus DM Binary With Extreme Eclipses And Reflection Effect. Astrophysical Journal, 808(2), Article 179. https://doi.org/10.1088/0004-637X/808/2/179

We report the discovery of a new totally eclipsing binary (R.A. = ${06}^{{\rm{h}}}{40}^{{\rm{m}}}{29}^{{\rm{s}}}11$; decl. = +38°56'52''2; J = 2000.0; Rmax = 17.2 mag) with an sdO primary and a strongly irradiated red dwarf companion. It has an orbit... Read More about A New sdo plus DM Binary With Extreme Eclipses And Reflection Effect.

The GAPS Programme with HARPS-N at TNG VIII. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10 (2015)
Journal Article
Mancini, L., Esposito, M., Covino, E., Raia, G., Southworth, J., Tregloan-Reed, J., …Zanmar Sanchez, R. (2015). The GAPS Programme with HARPS-N at TNG VIII. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10. Astronomy & Astrophysics, 579, Article A136. https://doi.org/10.1051/0004-6361/201526030

Context. Orbital obliquity is thought to be a fundamental parameter in tracing the physical mechanisms that cause the migration of giant planets from the snow line down to roughly 10-2?au from their host stars. We are carrying out a large programme t... Read More about The GAPS Programme with HARPS-N at TNG VIII. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10.

Spectroscopically resolving the Algol triple system (2015)
Journal Article
Kolbas, V., Pavlovski, K., Southworth, J., Lee, C., Lee, D., Lee, J., …Tkachenko, A. (2015). Spectroscopically resolving the Algol triple system. Monthly Notices of the Royal Astronomical Society, 451(4), 4150 -4161. https://doi.org/10.1093/mnras/stv1261

Algol (ß Persei) is the prototypical semidetached eclipsing binary and a hierarchical triple system. From 2006 to 2010 we obtained 121 high-resolution and high signal-to-noise ratio echelle spectra of this object. Spectral disentangling yields the in... Read More about Spectroscopically resolving the Algol triple system.

Variable Emission from a Gaseous Disc around a Metal-Polluted White Dwarf (2015)
Conference Proceeding
Wilson, D. J., Gaensicke, B. T., Koester, D., Raddi, R., Breedt, E., Southworth, J., & Parsons, S. G. (2015). Variable Emission from a Gaseous Disc around a Metal-Polluted White Dwarf. In Vol. 493 – 19th European Workshop on White Dwarfs

We present the discovery of a variable gaseous disc around the metal-polluted DA white dwarf SDSS J1617+1620. Time-series spectroscopy obtained during the period 2006-2014 has shown the appearance of very strong double-peaked Ca ii 8600Å emission lin... Read More about Variable Emission from a Gaseous Disc around a Metal-Polluted White Dwarf.

A census of variability in globular cluster M 68 (NGC 4590) (2015)
Journal Article
Kains, N., Arellano Ferro, A., Figuera Jaimes, R., Bramich, D., Skottfelt, J., Jørgensen, U., …MiNDSTEp Consortium, T. (2015). A census of variability in globular cluster M 68 (NGC 4590). Astronomy & Astrophysics, 578, Article A128. https://doi.org/10.1051/0004-6361/201424600

Aims. We analyse 20 nights of CCD observations in the V and I bands of the globular cluster M?68 (NGC 4590) and use them to detect variable objects. We also obtained electron-multiplying CCD (EMCCD) observations for this cluster in order to explore i... Read More about A census of variability in globular cluster M 68 (NGC 4590).

The GAPS programme with HARPS-N at TNG VII. Putting exoplanets in the stellar context: magnetic activity and asteroseismology of tau Bootis A (2015)
Journal Article
Borsa, F., Scandariato, G., Rainer, M., Bignamini, A., Maggio, A., Poretti, E., …Stelzer, B. (2015). The GAPS programme with HARPS-N at TNG VII. Putting exoplanets in the stellar context: magnetic activity and asteroseismology of tau Bootis A. Astronomy & Astrophysics, 578, Article A64. https://doi.org/10.1051/0004-6361/201525741

Aims. We observed the t Boo system with the HARPS-N spectrograph to test a new observational strategy aimed at jointly studying asteroseismology, the planetary orbit, and star-planet magnetic interaction. Methods. We collected high-cadence observa... Read More about The GAPS programme with HARPS-N at TNG VII. Putting exoplanets in the stellar context: magnetic activity and asteroseismology of tau Bootis A.

Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tau (2015)
Journal Article
Maxted, P., Hutcheon, R., Torres, G., Lacy, C., Southworth, J., Smalley, B., …Clausen, J. (2015). Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tau. Astronomy & Astrophysics, 578, Article A25. https://doi.org/10.1051/0004-6361/201525873

V1094 Tau is bright eclipsing binary star with an orbital period close to 9 days containing two stars similar to the Sun. Our aim is to test models of Sun-like stars using precise and accurate mass and radius measurements for both stars in V1094 Tau.... Read More about Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tau.

Stellar parameters of early-M dwarfs from ratios of spectral features at optical wavelengths (2015)
Journal Article
Maldonado, J., Affer, L., Micela, G., Scandariato, G., Damasso, M., Stelzer, B., …Suárez Mascareño, A. (2015). Stellar parameters of early-M dwarfs from ratios of spectral features at optical wavelengths. Astronomy & Astrophysics, 577, Article A132. https://doi.org/10.1051/0004-6361/201525797

Context. Low-mass stars have been recognised as promising targets in the search for rocky, small planets with the potential of supporting life. As a consequence, Doppler search programmes using high-resolution spectrographs like HARPS or HARPS-N are... Read More about Stellar parameters of early-M dwarfs from ratios of spectral features at optical wavelengths.