s-process production in rotating massive stars at solar and low metallicities (2015)
Journal Article
Frischknecht, U., Hirschi, R., Pignatari, M., Maeder, A., Meynet, G., Chiappini, C., Thielemann, F.-K., Rauscher, T., Georgy, C., & Ekström, S. (2016). s-process production in rotating massive stars at solar and low metallicities. Monthly Notices of the Royal Astronomical Society, 456(2), 1803 - 1825. https://doi.org/10.1093/mnras/stv2723

Rotation was shown to have a strong impact on the structure and light element nucleosynthesis in massive stars. In particular, models including rotation can reproduce the primary nitrogen observed in halo extremely metal poor (EMP) stars. Additional... Read More about s-process production in rotating massive stars at solar and low metallicities.

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., Chen, G., D'Ago, G., Dominik, M., Figuera Jaimes, R., Galianni, P., Harpsøe, K., Hinse, T., Jørgensen, U., Juncher, D., Korhonen, H., Liebig, C., Rabus, M., Bonomo, A., Bott, K., …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., Pala, A. F., Parsons, S. G., & 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., Dominik, M., Hundertmark, M., Jørgensen, U., Juncher, D., Popovas, A., Rabus, M., Rahvar, S., Schmidt, R., Skottfelt, J., Snodgrass, C., Sozzetti, A., Alsubai, K., Bramich, D., Calchi Novati, S., …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.

Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups (2015)
Journal Article
Binks, A., & Jeffries, R. (2016). Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups. Monthly Notices of the Royal Astronomical Society, 455(3), 3345-3358. https://doi.org/10.1093/mnras/stv2431

Optical spectroscopic observations are reported for 24 and 23, nearby, proper-motion-selected M-dwarf candidate members of the Beta Pictoris and AB Doradus moving groups (BPMG and ABDMG). Using kinematic criteria, the presence of both Halpha emission... Read More about Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups.

The Chandra/HETG view of NGC 1365 in a Compton-thick state (2015)
Journal Article
Nardini, E., Gofford, J., Reeves, J. N., Braito, V., Risaliti, G., & Costa, M. (2015). The Chandra/HETG view of NGC 1365 in a Compton-thick state. Monthly Notices of the Royal Astronomical Society, 453(3), 2558-2568. https://doi.org/10.1093/mnras/stv1826

We present the analysis of a Chandra High-Energy Transmission Grating (HETG) observation of the local Seyfert galaxy NGC 1365. The source, well known for its dramatic X-ray spectral variability, was caught in a reflection-dominated, Compton-thick sta... Read More about The Chandra/HETG view of NGC 1365 in a Compton-thick state.

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., Delrez, L., Dominik, M., Evans, D., Gillon, M., Jehin, E., Jørgensen, U., Haugbølle, T., Lendl, M., Arena, C., Barbieri, L., Barbieri, M., Corfini, G., Lopresti, C., Marchini, A., …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., Ago, G., AlSubai, K., Dominik, M., Figuera Jaimes, R., Horne, K., Hundertmark, M., Kains, N., Snodgrass, C., Steele, I., Tsapras, Y., Albrow, M., Batista, V., Beaulieu, J.-P., Bennett, D., …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.

X-ray emission from massive stars in CYG OB2 (2015)
Journal Article
Wright. (2015). X-ray emission from massive stars in CYG OB2. Astrophysical Journal Supplement, https://doi.org/10.1088/0067-0049/221/1/1

We report on the analysis of the Chandra-ACIS data of O, B, and WR stars in the young association Cyg OB2. X-ray spectra of 49 O-stars, 54 B-stars, and 3 WR-stars are analyzed and for the brighter sources, the epoch dependence of the X-ray fluxes is... Read More about X-ray emission from massive stars in CYG OB2.

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.

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).

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.

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.

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.