The Gaia-ESO Survey: the origin and evolution of s-process elements (2018)
Journal Article
Jeffries. (2018). The Gaia-ESO Survey: the origin and evolution of s-process elements. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201832841

Context. Several works have found an increase of the abundances of the s-process neutron-capture elements in the youngest Galactic stellar populations. These trends provide important constraints on stellar and Galactic evolution and they need to be c... Read More about The Gaia-ESO Survey: the origin and evolution of s-process elements.

Low-metallicity CO+He WD post-merger models for RCB stars and their connection to pre-solar low-density graphite grains (2018)
Journal Article
(2018). Low-metallicity CO+He WD post-merger models for RCB stars and their connection to pre-solar low-density graphite grains. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/sty2606

R Coronae Borealis stars are predominantly metal-poor, near-solar mass hydrogen-deficient carbon-rich supergiants, that have evolved from mergers of carbon-oxygen and helium white dwarf systems. They have some of the lowest 16O/18O ratios measured in... Read More about Low-metallicity CO+He WD post-merger models for RCB stars and their connection to pre-solar low-density graphite grains.

WASP-128b: a transiting brown dwarf in the dynamical-tide regime (2018)
Journal Article
Hodzic, V., Triaud, A. H. M. J., Anderson, D. R., Bouchy, F., Cameron, A. C., Delrez, L., …West, R. (2018). WASP-128b: a transiting brown dwarf in the dynamical-tide regime. Monthly Notices of the Royal Astronomical Society, 481(4), 5091-5097. https://doi.org/10.1093/mnras/sty2512

Massive companions in close orbits around G dwarfs are thought to undergo rapid orbital decay due to runaway tidal dissipation. We report here the discovery of WASP-128b, a brown dwarf discovered by the WASP survey transiting a G0V host on a 2.2 d or... Read More about WASP-128b: a transiting brown dwarf in the dynamical-tide regime.

Physical properties and CNO abundances for high-mass stars in four main-sequence detached eclipsing binaries: V478 Cyg, AH Cep, V453 Cyg, and V578 Mon (2018)
Journal Article
Pavlovski, K., Southworth, J., & Tamajo, E. (2018). Physical properties and CNO abundances for high-mass stars in four main-sequence detached eclipsing binaries: V478 Cyg, AH Cep, V453 Cyg, and V578 Mon. Monthly Notices of the Royal Astronomical Society, 481(3), 3129 -3147. https://doi.org/10.1093/mnras/sty2516

We present ten high-precision light curves of four transits in the XO-1 planetary system, obtained using u, g, r, redshifted Ha, I and z filters. We use these to measure the physical properties, orbital ephemeris, and a transmission spectrum of the p... Read More about Physical properties and CNO abundances for high-mass stars in four main-sequence detached eclipsing binaries: V478 Cyg, AH Cep, V453 Cyg, and V578 Mon.

The 30 Year Search for the Compact Object in SN 1987A (2018)
Journal Article
Alp, D., Larsson, J., Fransson, C., Indebetouw, R., Jerkstrand, A., Ahola, A., …Staveley-Smith, L. (2018). The 30 Year Search for the Compact Object in SN 1987A. Astrophysical Journal, 174 -174. https://doi.org/10.3847/1538-4357/aad739

Despite more than 30 years of searching, the compact object in Supernova (SN) 1987A has not yet been detected. We present new limits on the compact object in SN 1987A using millimeter, near-infrared, optical, ultraviolet, and X-ray observations from... Read More about The 30 Year Search for the Compact Object in SN 1987A.

Physical properties and optical-infrared transmission spectrum of the giant planet XO-1 b (2018)
Journal Article
Southworth, J., Tregloan-Reed, J., Pinhas, A., Madhusudhan, N., Mancini, L., & Smith, A. M. S. (2018). Physical properties and optical-infrared transmission spectrum of the giant planet XO-1 b. Monthly Notices of the Royal Astronomical Society, 481(3), 3129-3147. https://doi.org/10.1093/mnras/sty2488

A prerequisite for probing theoretical evolutionary models for high-mass stars is the determination of stellar physical properties with a high accuracy. We do this for three binary systems containing components with masses above 10?M?: V478?Cyg, AH?C... Read More about Physical properties and optical-infrared transmission spectrum of the giant planet XO-1 b.

The stellar rotation-activity relationship in fully convective M dwarfs (2018)
Journal Article
Wright. (2018). The stellar rotation-activity relationship in fully convective M dwarfs. Monthly Notices of the Royal Astronomical Society, 2351 - 2360. https://doi.org/10.1093/mnras/sty1670

The coronal activity-rotation relationship is considered to be a proxy for the underlying stellar dynamo responsible for magnetic activity in solar and late-type stars. While this has been studied in considerable detail for partly convective stars th... Read More about The stellar rotation-activity relationship in fully convective M dwarfs.

A chemical survey of exoplanets with ARIEL (2018)
Journal Article
Maxted. (2018). A chemical survey of exoplanets with ARIEL. Experimental Astronomy, 135 - 209. https://doi.org/10.1007/s10686-018-9598-x

Thousands of exoplanets have now been discovered with a huge range of masses, sizes and orbits: from rocky Earth-like planets to large gas giants grazing the surface of their host star. However, the essential nature of these exoplanets remains largel... Read More about A chemical survey of exoplanets with ARIEL.

The double dust envelopes of R Coronae Borealis stars (2018)
Journal Article
(2018). The double dust envelopes of R Coronae Borealis stars. Astronomical Journal, https://doi.org/10.3847/1538-3881/aad772

The study of extended, cold dust envelopes surrounding R Coronae Borealis (RCB) stars began with their discovery by IRAS. RCB stars are carbon-rich supergiants characterized by their extreme hydrogen deficiency and for their irregular and spectacular... Read More about The double dust envelopes of R Coronae Borealis stars.

Evolution of spatio-kinematic structures in star-forming regions: are Friends of Friends worth knowing? (2018)
Journal Article
Wright, N., & Parker, R. J. (2018). Evolution of spatio-kinematic structures in star-forming regions: are Friends of Friends worth knowing?. Monthly Notices of the Royal Astronomical Society, 481(2), 1679-1689. https://doi.org/10.1093/mnras/sty2372

The Friends of Friends algorithm identifies groups of objects with similar spatial and kinematic properties, and has recently been used extensively to quantify the distributions of gas and stars in young star-forming regions. We apply the Friends of... Read More about Evolution of spatio-kinematic structures in star-forming regions: are Friends of Friends worth knowing?.

Near-Infrared Spectroscopy of SN 2017eaw in 2017: Carbon Monoxide and Dust Formation in a Type II-P Supernova (2018)
Journal Article
(2018). Near-Infrared Spectroscopy of SN 2017eaw in 2017: Carbon Monoxide and Dust Formation in a Type II-P Supernova. Astrophysical Journal Letters, https://doi.org/10.3847/2041-8213/aad77f

The origin of dust in the early Universe has been the subject of considerable debate. Core-collapse supernovae (ccSNe), which occur several million years after their massive progenitors form, could be a major source of that dust, as in the local univ... Read More about Near-Infrared Spectroscopy of SN 2017eaw in 2017: Carbon Monoxide and Dust Formation in a Type II-P Supernova.

The Gaia DR2 view of the Gamma Velorum cluster: resolving the 6D structure (2018)
Journal Article
Franciosini, E., Sacco, G., Jeffries, R., Damiani, F., Roccatagliata, V., Fedele, D., & Randich, S. (2018). The Gaia DR2 view of the Gamma Velorum cluster: resolving the 6D structure. Astronomy & Astrophysics, 616, L12. https://doi.org/10.1051/0004-6361/201833815

Gaia-ESO Survey observations of the young Gamma Velorum cluster led to the discovery of two kinematically distinct populations, Gamma Vel A and B, respectively, with population B extended over several square degrees in the Vela OB2 association. Using... Read More about The Gaia DR2 view of the Gamma Velorum cluster: resolving the 6D structure.

Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system (2018)
Journal Article
Smalley. (2018). Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system. Monthly Notices of the Royal Astronomical Society, 4720-4737. https://doi.org/10.1093/mnras/sty1193

We present the discovery of NGTS-3Ab, a hot Jupiter found transiting the primary star of an unresolved binary system. We develop a joint analysis of multi-colour photometry, centroids, radial velocity (RV) cross-correlation function (CCF) profiles an... Read More about Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system.

Tracking the Iron Ka line and the Ultra Fast Outflow in NGC 2992 at different accretion states (2018)
Journal Article
(2018). Tracking the Iron Ka line and the Ultra Fast Outflow in NGC 2992 at different accretion states. Monthly Notices of the Royal Astronomical Society, 5651-5662. https://doi.org/10.1093/mnras/sty1436

The Seyfert 2 galaxy NGC 2992 has been monitored eight times by XMM-Newton in 2010 and then observed again in 2013, while in 2015 it was simultaneously targeted by Swift and NuSTAR. XMM-Newton always caught the source in a faint state (2-10 keV fluxe... Read More about Tracking the Iron Ka line and the Ultra Fast Outflow in NGC 2992 at different accretion states.

Comparison of the power-2 limb-darkening law from the Stagger-grid to Kepler light curves of transiting exoplanets (2018)
Journal Article
Maxted. (2018). Comparison of the power-2 limb-darkening law from the Stagger-grid to Kepler light curves of transiting exoplanets. Astronomy & Astrophysics, A39 -?. https://doi.org/10.1051/0004-6361/201832944

Inaccurate limb-darkening models can be a significant source of error in the analysis of the light curves for transiting exoplanet and eclipsing binary star systems, particularly for high-precision light curves at optical wavelengths. The power-2 lim... Read More about Comparison of the power-2 limb-darkening law from the Stagger-grid to Kepler light curves of transiting exoplanets.

Discovery and characterisation of long-period eclipsing binary stars from Kepler K2 campaigns 1, 2 and 3 (2018)
Journal Article
Maxted. (2018). Discovery and characterisation of long-period eclipsing binary stars from Kepler K2 campaigns 1, 2 and 3. Astronomy & Astrophysics, A38 -?. https://doi.org/10.1051/0004-6361/201732463

The Kepler K2 mission now makes it possible to find and study a wider variety of eclipsing binary stars than has been possible to-date, particularly long-period systems with narrow eclipses. Our aim is to characterise eclipsing binary stars observed... Read More about Discovery and characterisation of long-period eclipsing binary stars from Kepler K2 campaigns 1, 2 and 3.

ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells (2018)
Journal Article
Van Loon. (2018). ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells. Astrophysical Journal, https://doi.org/10.3847/1538-4357/aacfff

N49 (LHA 120-N49) is a bright X-ray supernova remnant (SNR) in the Large Magellanic Cloud. We present new 12CO (J = 1–0, 3–2), H i, and 1.4 GHz radio continuum observations of the SNR N49 using Mopra, ASTE, ALMA, and ATCA. We have newly identified th... Read More about ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells.

A sextet of clusters in the Vela OB2 region revealed by Gaia (2018)
Journal Article
Wright. (2018). A sextet of clusters in the Vela OB2 region revealed by Gaia. Monthly Notices of the Royal Astronomical Society: Letters, https://doi.org/10.1093/mnrasl/sly144

Using Gaia DR2 data, combined with OmegaCAM ground-based optical photometry from the AD-HOC survey, and detailed Radial Velocity measurements from ESO-Gaia, we analyse in detail a 10 ×5 deg region around the Wolf-Rayet star ?2 Vel, including the prev... Read More about A sextet of clusters in the Vela OB2 region revealed by Gaia.

A slow cooling-rate in situ cell for long-duration studies of mineral precipitation in cold aqueous environments on Earth and other planetary bodies (2018)
Journal Article
(2018). A slow cooling-rate in situ cell for long-duration studies of mineral precipitation in cold aqueous environments on Earth and other planetary bodies. Journal of Applied Crystallography, 1197-1210. https://doi.org/10.1107/S1600576718008816

Liquid oceans and ice caps, along with ice crusts, have long been considered defining features of the Earth, but space missions and observations have shown that they are in fact common features among many of the solar system's outer planets and their... Read More about A slow cooling-rate in situ cell for long-duration studies of mineral precipitation in cold aqueous environments on Earth and other planetary bodies.

The Exoplanet Climate Infrared TElescope (EXCITE) (2018)
Journal Article
Maxted. (2018). The Exoplanet Climate Infrared TElescope (EXCITE). Proceedings of SPIE, https://doi.org/10.1117/12.2314225

Although there are a large number of known exoplanets, there is little data on their global atmospheric properties. Phase-resolved spectroscopy of transiting planets – continuous spectroscopic observation of planets during their full orbits – probes... Read More about The Exoplanet Climate Infrared TElescope (EXCITE).