REDISCUSSION OF ECLIPSING BINARIES. PAPER 4: THE EVOLVED G-TYPE SYSTEM AN CAMELOPARDALIS (2021)
Journal Article
Taylor. (2021). REDISCUSSION OF ECLIPSING BINARIES. PAPER 4: THE EVOLVED G-TYPE SYSTEM AN CAMELOPARDALIS. Observatory, 141, 122 - 133

AN Cam is a little-studied eclipsing binary containing somewhat evolved components in an orbit with a period of 21(d).0 and an eccentricity of 0.47. A spectroscopic orbit based on photoelectric radial velocities was published in 1977. AN Cam has been... Read More about REDISCUSSION OF ECLIPSING BINARIES. PAPER 4: THE EVOLVED G-TYPE SYSTEM AN CAMELOPARDALIS.

The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3 (2021)
Journal Article
Graczyk, D., Pietrzyński, G., Gałan, C., Gieren, W., Tkachenko, A., Anderson, R., Gallenne, A., Górski, M., Hajdu, G., Kałuszyński, M., Karczmarek, P., Kervella, P., Maxted, P., Nardetto, N., Narloch, W., Pavlovski, K., Pilecki, B., Pych, W., Southworth, J., Storm, J., …Konorski, P. (2021). The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3. Astronomy & Astrophysics, 649, Article A109. https://doi.org/10.1051/0004-6361/202140571

Aims. The surface brightness–colour relation (SBCR) is a basic tool for establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurately determined radii and trigonometric parallaxes allow calibratio... Read More about The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3.

The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232 (2021)
Journal Article
Binks, A. S., Jeffries, R. D., Jackson, R. J., Franciosini, E., Sacco, G. G., Bayo, A., Magrini, L., Randich, S., Arancibia-Silva, J., Bergemann, M., Bragaglia, A., Gilmore, G., Gonneau, A., Hourihane, A., Jofré, P., Korn, A. J., Morbidelli, L., Prisinzano, L., Worley, C. C., & Zaggia, S. (2021). The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232. Monthly Notices of the Royal Astronomical Society, 505(1), 1280-1292

Astrometry and photometry from {\it Gaia} and spectroscopic data from the {\it Gaia}-ESO Survey (GES) are used to identify the lithium depletion boundary (LDB) in the young cluster NGC 2232. A specialised spectral line analysis procedure was used to... Read More about The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232.

The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars (2021)
Journal Article
Tatton, B. L., Van Loon, J. T., Cioni, M.-R. L., Bekki, K., Bell, C. P. M., Choudhury, S., de Grijs, R., Groenewegen, M. A. T., Ivanov, V. D., Marconi, M., Oliveira, J. M., Ripepi, V., Rubele, S., Subramanian, S., & Sun, N.-C. (2021). The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars. Monthly Notices of the Royal Astronomical Society, 504(2), 2983 - 2997. https://doi.org/10.1093/mnras/staa3857

Galaxy interactions distort the distribution of baryonic matter and can affect star formation. The nearby Magellanic Clouds are a prime example of an ongoing galaxy interaction process. Here, we use the intermediate-age (similar to 1-10 Gyr) red clum... Read More about The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars.

Elongation rate and average length of amyloid fibrils in solution using isotope-labelled small-angle neutron scattering. (2021)
Journal Article
(2021). Elongation rate and average length of amyloid fibrils in solution using isotope-labelled small-angle neutron scattering

We demonstrate a solution method that allows both elongation rate and average fibril length of assembling amyloid fibrils to be estimated. The approach involves acquisition of real-time neutron scattering data during the initial stages of seeded grow... Read More about Elongation rate and average length of amyloid fibrils in solution using isotope-labelled small-angle neutron scattering..

The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry (2021)
Journal Article
Kocak, D., Yakut, K., Southworth, J., Eggleton, P. P., Icli, T., Tout, C. A., & Bloemen, S. (2021). The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry. Astrophysical Journal, 910(2), Article 111. https://doi.org/10.3847/1538-4357/abe546

We present a detailed study of KIC 2306740, an eccentric double-lined eclipsing binary system. Kepler satellite data were combined with spectroscopic data obtained with the 4.2 m William Herschel Telescope (WHT). This allowed us to determine precise... Read More about The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry.

Analytical treatment of the transient motion of inertial beams attached to coupling inertial resonators (2021)
Journal Article
Nieves, M., & Carta, G. (2021). Analytical treatment of the transient motion of inertial beams attached to coupling inertial resonators. Journal of Engineering Mathematics, 127, Article 20. https://doi.org/10.1007/s10665-021-10110-w

This paper presents, for the first time, an analytical formulation to determine the transient response of an elastic beam possessing distributed inertia and connected to a coupling inertial resonator, represented by a gyroscopic spinner. The latter c... Read More about Analytical treatment of the transient motion of inertial beams attached to coupling inertial resonators.

Convective core entrainment in 1D main-sequence stellar models (2021)
Journal Article
Scott, L. J. A., Hirschi, R., Georgy, C., Arnett, W. D., Meakin, C., Kaiser, E. A., Ekström, S., & Yusof, N. (2021). Convective core entrainment in 1D main-sequence stellar models. Monthly Notices of the Royal Astronomical Society, 503(3), 4208 - 4220. https://doi.org/10.1093/mnras/stab752

3D hydrodynamics models of deep stellar convection exhibit turbulent entrainment at the convective-radiative boundary which follows the entrainment law, varying with boundary penetrability. We implement the entrainment law in the 1D Geneva stellar ev... Read More about Convective core entrainment in 1D main-sequence stellar models.

BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system (2021)
Journal Article
Borkovits, T., Rappaport, S. A., Maxted, P. F. L., Terentev, I., Omohundro, M., Gagliano, R., Jacobs, T., Kristiansen, M. H., LaCourse, D., Schwengeler, H. M., Vanderburg, A., & Blackford, M. G. (2021). BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system. Monthly Notices of the Royal Astronomical Society, 503(3), 3759-3774. https://doi.org/10.1093/mnras/stab621

BG Ind is a well-studied, bright, nearby binary consisting of a pair of F stars in a 1.46-d orbit. We have discovered in the TESS light curve for TIC 229804573 (aka BG Ind), a second eclipsing binary in the system with a 0.53-d period. Our subsequent... Read More about BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system.

Tunable van Hove singularities and correlated states in twisted monolayer–bilayer graphene (2021)
Journal Article
Xu, S., Al Ezzi, M. M., Balakrishnan, N., Garcia-Ruiz, A., Tsim, B., Mullan, C., Barrier, J., Xin, N., Piot, B. A., Taniguchi, T., Watanabe, K., Carvalho, A., Mishchenko, A., Geim, A., Fal’ko, V. I., Adam, S., Castro Neto, A. H., Novoselov, K. S., & Shi, Y. (2021). Tunable van Hove singularities and correlated states in twisted monolayer–bilayer graphene. Nature Physics, 17, 619–626. https://doi.org/10.1038/s41567-021-01172-9

Understanding and tuning correlated states is of great interest and significance to modern condensed matter physics. The recent discovery of unconventional superconductivity and Mott-like insulating states in magic-angle twisted bilayer graphene (tBL... Read More about Tunable van Hove singularities and correlated states in twisted monolayer–bilayer graphene.

Resolving period aliases for TESS monotransits recovered during the extended mission (2021)
Journal Article
(2021). Resolving period aliases for TESS monotransits recovered during the extended mission. Monthly Notices of the Royal Astronomical Society, 5088 - 5097. https://doi.org/10.1093/mnras/staa3569

We set out to explore how best to mitigate the number of period aliases for a transiting Transiting Exoplanet Survey Satellite (TESS) system with two identified transits separated by a large time period on the order of years. We simulate a realistic... Read More about Resolving period aliases for TESS monotransits recovered during the extended mission.

Necking, Beading, and Bulging in Soft Elastic Cylinders (2021)
Journal Article
Fu. (2021). Necking, Beading, and Bulging in Soft Elastic Cylinders. Journal of the Mechanics and Physics of Solids, https://doi.org/10.1016/j.jmps.2020.104250

Due to surface tension, a beading instability takes place in a long enough fluid column that results in the breakup of the column and the formation of smaller packets with the same overall volume but a smaller surface area. Similarly, a soft elastic... Read More about Necking, Beading, and Bulging in Soft Elastic Cylinders.

Directional Control of Rayleigh Wave Propagation in an Elastic Lattice by Gyroscopic Effects (2021)
Journal Article
Nieves, M., Carta, G., Pagneux, V., & Brun, M. (2021). Directional Control of Rayleigh Wave Propagation in an Elastic Lattice by Gyroscopic Effects. Frontiers in Materials, https://doi.org/10.3389/fmats.2020.602960

<jats:p>We discuss the propagation of Rayleigh waves at the boundary of a semi-infinite elastic lattice connected to a system of gyroscopic spinners. We present the derivation of the analytical solution of the equations governing the system when the... Read More about Directional Control of Rayleigh Wave Propagation in an Elastic Lattice by Gyroscopic Effects.

Reevaluation of the Ne-23(alpha, gamma)Mg-26 and Ne-22(alpha, n)Mg-25 reaction (2021)
Journal Article
Adsley, P., Battino, U., Best, A., Caciolli, A., Guglielmetti, A., Imbriani, G., Jayatissa, H., La Cognata, M., Lamia, L., Masha, E., Massimi, C., Palmerini, S., Tattersall, A., & Hirschi, R. (2021). Reevaluation of the Ne-23(alpha, gamma)Mg-26 and Ne-22(alpha, n)Mg-25 reaction. Physical Review C, 103(1), https://doi.org/10.1103/PhysRevC.103.015805

Background: The competing 22Ne(a,?)26Mg and 22Ne(a,n)25Mg reactions control the production of neutrons for the weak s process in massive and asymptotic giant branch (AGB) stars. In both systems, the ratio between the corresponding reaction rates stro... Read More about Reevaluation of the Ne-23(alpha, gamma)Mg-26 and Ne-22(alpha, n)Mg-25 reaction.

TESS Hunt for Young and Maturing Exoplanets (THYME). IV. Three Small Planets Orbiting a 120 Myr Old Star in the Pisces-Eridanus Stream (2021)
Journal Article
Newton, E. R., Mann, A. W., Kraus, A. L., Livingston, J. H., Vanderburg, A., Curtis, J. L., Thao, P. C., Hawkins, K., Wood, M. L., Rizzuto, A. C., Soubkiou, A., Tofflemire, B. M., Zhou, G., Crossfield, I. J. M., Pearce, L. A., Collins, K. A., Conti, D. M., Tan, T.-G., Villeneuva, S., Spencer, A., …Latham, D. W. (2021). TESS Hunt for Young and Maturing Exoplanets (THYME). IV. Three Small Planets Orbiting a 120 Myr Old Star in the Pisces-Eridanus Stream. Astronomical Journal, 161(2), Article ARTN 65. https://doi.org/10.3847/1538-3881/abccc6

Young exoplanets can offer insight into the evolution of planetary atmospheres, compositions, and architectures. We present the discovery of the young planetary system TOI 451 (TIC 257605131, Gaia DR2 4844691297067063424). TOI 451 is a member of the... Read More about TESS Hunt for Young and Maturing Exoplanets (THYME). IV. Three Small Planets Orbiting a 120 Myr Old Star in the Pisces-Eridanus Stream.

On the physical mechanism of front-back asymmetry of non-breaking gravity-capillary waves (2021)
Journal Article
Dosaev, A., Troitskaya, Y. I., & Shrira, V. I. (2021). On the physical mechanism of front-back asymmetry of non-breaking gravity-capillary waves. Journal of Fluid Mechanics, 906, Article ARTN A11. https://doi.org/10.1017/jfm.2020.696

In nature, the wind waves of the gravity–capillary range are noticeably skewed forward. The salient feature of such waves is a characteristic pattern of capillary ripples on their crests. The train of these ‘parasitic capillaries’ is not symmetric wi... Read More about On the physical mechanism of front-back asymmetry of non-breaking gravity-capillary waves.

Statistical Signatures of Nanoflare Activity. II. A Nanoflare Explanation for Periodic Brightenings in Flare Stars Observed by NGTS (2020)
Journal Article
(2020). Statistical Signatures of Nanoflare Activity. II. A Nanoflare Explanation for Periodic Brightenings in Flare Stars Observed by NGTS. Astrophysical Journal, 1-18. https://doi.org/10.3847/1538-4357/abbfa8

Several studies have documented periodic and quasi-periodic signals from the time series of dMe flare stars and other stellar sources. Such periodic signals, observed within quiescent phases (i.e., devoid of larger-scale microflare or flare activity)... Read More about Statistical Signatures of Nanoflare Activity. II. A Nanoflare Explanation for Periodic Brightenings in Flare Stars Observed by NGTS.

Wrinkling of a compressed hyperelastic half-space with localized surface imperfections (2020)
Journal Article
Fu. (2020). Wrinkling of a compressed hyperelastic half-space with localized surface imperfections. International Journal of Non-Linear Mechanics, https://doi.org/10.1016/j.ijnonlinmec.2020.103576

We consider a variant of the classical Biot problem concerning the wrinkling of a compressed hyperelastic half-space. The traction-free surface is no longer flat but has a localized ridge or trench that is invariant in the x1-direction along which th... Read More about Wrinkling of a compressed hyperelastic half-space with localized surface imperfections.

Rayleigh waves in micro-structured elastic systems: Non-reciprocity and energy symmetry breaking (2020)
Journal Article
Nieves, M., Carta, G., Pagneux, V., & Brun, M. (2020). Rayleigh waves in micro-structured elastic systems: Non-reciprocity and energy symmetry breaking. International Journal of Engineering Science, https://doi.org/10.1016/j.ijengsci.2020.103365

Rayleigh waves are analysed in elastic lattices incorporating inertial devices that couple in-plane displacements. The vector problems of elasticity for a triangular lattice and its long-wavelength/low-frequency continuum approximation are considered... Read More about Rayleigh waves in micro-structured elastic systems: Non-reciprocity and energy symmetry breaking.

NGTS-12b: A sub-Saturn mass transiting exoplanet in a 7.53 day orbit (2020)
Journal Article
(2020). NGTS-12b: A sub-Saturn mass transiting exoplanet in a 7.53 day orbit. Monthly Notices of the Royal Astronomical Society, 3139 - 3148. https://doi.org/10.1093/mnras/staa2976

We report the discovery of the transiting exoplanet NGTS-12b by the Next Generation Transit Survey (NGTS). The host star, NGTS-12, is a V = 12.38?mag star with an effective temperature of Teff = 5690 ± 130?K. NGTS-12b orbits with a period of P = 7.53... Read More about NGTS-12b: A sub-Saturn mass transiting exoplanet in a 7.53 day orbit.