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HD183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component (2015)
Presentation / Conference Contribution
Derekas, A., Borkovits, T., Fuller, J., Szabó, G., Pavlovski, K., Csák, B., Dózsa, Á., Kovács, J., Szabó, R., Hambleton, K., Kinemuchi, K., Kolbas, V., Kurtz, D., Maloney, F., Prša, A., Southworth, J., Sztakovics, J., Bíró, I., & Jankovics, I. (2014, July). HD183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component. Presented at The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting, Toulouse, France

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., Yang, M., Wang, J., Zhang, H., Shi, H., Zhang, W., Dong, S., Catanzaro, G., Corbally, C., Frasca, A., Gray, R., Molenda- Żakowicz, J., Uytterhoeven, K., Briquet, M., Bruntt, H., …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)
Presentation / Conference Contribution
Southworth, J. (2014, July). Multiple star systems observed with CoRoT and Kepler (invited review). Presented at The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting, Toulouse, France

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).

KIC 7582608: a new Kepler roAp star with frequency variability (2015)
Presentation / Conference Contribution
Holdsworth, D., Smalley, B., Kurtz, D., Southworth, J., Cunha, M., & Clubb, K. (2014, July). KIC 7582608: a new Kepler roAp star with frequency variability. Poster presented at The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting, Toulouse, France

We analyse the fifth roAp star reported in the Kepler field, KIC 7582608, discovered with the SuperWASP project. The object shows a high frequency pulsation at 181.7324d-1 (P = 7.9 min) with an amplitude of 1.45 mmag, and low frequency rotational mod... Read More about KIC 7582608: a new Kepler roAp star with frequency variability.

The edge waves on a Kirchhoff plate bilaterally supported by a two-parameter elastic foundation (2015)
Journal Article
Kaplunov. (2015). The edge waves on a Kirchhoff plate bilaterally supported by a two-parameter elastic foundation. Journal of Vibration and Control, 2014-2022. https://doi.org/10.1177/1077546315606838

In this paper, the bending waves propagating along the edge of a semi-infinite Kirchhoff plate resting on a two-parameter Pasternak elastic foundation are studied. Two geometries of the foundation are considered: either it is infinite or it is semi-i... Read More about The edge waves on a Kirchhoff plate bilaterally supported by a two-parameter elastic foundation.

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., Malavolta, L., Biazzo, K., Sozzetti, A., Covino, E., Latham, D., Gandolfi, D., Rainer, M., Petrovich, C., Collins, K., Boccato, C., Claudi, R., Cosentino, R., Gratton, R., Lanza, 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., Isaacson, H., Marcy, G., Ciardi, D., Gilliland, R., & 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.

λ Bootis stars in the SuperWASP survey (2015)
Journal Article
Paunzen, E., Skarka, M., Walczak, P., Holdsworth, D., Smalley, B., West, R., & Janík, J. (2015). λ Bootis stars in the SuperWASP survey. Monthly Notices of the Royal Astronomical Society, 453(2), 1241 -1248. https://doi.org/10.1093/mnras/stv1652

We have analysed around 170 000 individual photometric WASP (Wide Angle Search for Planets) measurements of 15 well-established ? Bootis stars to search for variability. The ? Bootis stars are a small group of late-B to early-F, Pop I, stars that sho... Read More about λ Bootis stars in the SuperWASP survey.

KIC 4768731: a bright long-period roAp star in the Kepler field (2015)
Journal Article
Smalley, B., Niemczura, E., Murphy, S., Lehmann, H., Kurtz, D., Holdsworth, D., Cunha, M., Balona, L., Briquet, M., Bruntt, H., De Cat, P., Lampens, P., Thygesen, A., & Uytterhoeven, K. (2015). KIC 4768731: a bright long-period roAp star in the Kepler field. Monthly Notices of the Royal Astronomical Society, 452(4), 3334 - 3345. https://doi.org/10.1093/mnras/stv1515

We report the identification of 61.45?d-1 (711.2 µHz) oscillations, with amplitudes of 62.6 µmag, in KIC 4768731 (HD 225914) using Kepler photometry. This relatively bright (V = 9.17) chemically peculiar star with spectral type A5 Vp SrCr(Eu) has pre... Read More about KIC 4768731: a bright long-period roAp star in the Kepler field.

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., Csák, B., Garcia-Alvarez, D., Maxted, P., Kiss, L., Vida, K., Szabó, G., & 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.

Spectroscopic survey of Kepler stars.(a similar to...) I. HERMES/Mercator observations of A- and F-type stars (2015)
Journal Article
Smalley. (2015). Spectroscopic survey of Kepler stars.(a similar to...) I. HERMES/Mercator observations of A- and F-type stars. Monthly Notices of the Royal Astronomical Society, 2764 -2783. https://doi.org/10.1093/mnras/stv528

The Kepler space mission provided near-continuous and high-precision photometry of about 207 000 stars, which can be used for asteroseismology. However, for successful seismic modeling it is equally important to have accurate stellar physical paramet... Read More about Spectroscopic survey of Kepler stars.(a similar to...) I. HERMES/Mercator observations of A- and F-type stars.

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., Pavlovski, K., Marschall, L., & 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.

New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+ (2015)
Journal Article
Wright. (2015). New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+. Monthly Notices of the Royal Astronomical Society, 3855-3873. https://doi.org/10.1093/mnras/stv843

O and early B stars are at the apex of galactic ecology, but in the Milky Way, only a minority of them may yet have been identified. We present the results of a pilot study to select and parametrize OB star candidates in the Southern Galactic plane,... Read More about New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+.

A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars (2015)
Journal Article
Maxted, P., Serenelli, A., & Southworth, J. (2015). A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars. Astronomy & Astrophysics, 577, Article A90. https://doi.org/10.1051/0004-6361/201525774

Previous studies suggest that tidal interactions may be responsible for discrepancies between the ages of exoplanet host stars estimated using stellar models (isochronal ages) and age estimates based on the stars' rotation periods (gyrochronological... Read More about A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars.

Transits and starspots in the WASP-6 planetary system (2015)
Journal Article
Tregloan-Reed, J., Southworth, J., Burgdorf, M., Calchi Novati, S., Dominik, M., Finet, F., Jørgensen, U., Maier, G., Mancini, L., Prof, S., Ricci, D., Snodgrass, C., Bozza, V., Browne, P., Dodds, P., Gerner, T., Harpsøe, K., Hinse, T., Hundertmark, M., Kains, N., …Surdej, J. (2015). Transits and starspots in the WASP-6 planetary system. Monthly Notices of the Royal Astronomical Society, 450(2), 1760 -1769. https://doi.org/10.1093/mnras/stv730

We present updates to PRISM, a photometric transit-starspot model, and GEMC, a hybrid optimization code combining MCMC and a genetic algorithm. We then present high-precision photometry of four transits in the WASP-6 planetary system, two of which co... Read More about Transits and starspots in the WASP-6 planetary system.

Small amplitude waves in a pre-stressed compressible elastic layer with one fixed and one free face (2015)
Journal Article
Lashhab, M., Rogerson, G., & Prikazchikova, L. (2015). Small amplitude waves in a pre-stressed compressible elastic layer with one fixed and one free face. Zeitschrift für Angewandte Mathematik und Physik, 66, 2741 -2757. https://doi.org/10.1007/s00033-015-0509-y

We address the problem of wave propagation in a pre-stressed elastic layer with mixed boundary conditions, the layer having one fixed and one free face. Numerical analysis provides a good initial insight into the influence of these boundary condition... Read More about Small amplitude waves in a pre-stressed compressible elastic layer with one fixed and one free face.

The UK Infrared Telescope M33 monitoring project - IV. Variable red giant stars across the galactic disc (2015)
Journal Article
Van Loon. (2015). The UK Infrared Telescope M33 monitoring project - IV. Variable red giant stars across the galactic disc. Monthly Notices of the Royal Astronomical Society, 3973 -3991. https://doi.org/10.1093/mnras/stu2637

We have conducted a near-infrared monitoring campaign at the UK InfraRed Telescope, of the Local Group spiral galaxy M33 (Triangulum). The main aim was to identify stars in the very final stage of their evolution, and for which the luminosity is more... Read More about The UK Infrared Telescope M33 monitoring project - IV. Variable red giant stars across the galactic disc.

The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo (2015)
Journal Article
Jeffries. (2015). The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201425554

A small fraction of the halo field is made up of stars that share the light element (Z = 13) anomalies characteristic of second generation globular cluster (GC) stars. The ejected stars shed light on the formation of the Galactic halo by tracing the... Read More about The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo.