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Inverse Opal CuCrO2 Photocathodes for H2 Production Using Organic Dyes and a Molecular Ni Catalyst (2019)
Journal Article
Creissen, C. E., Warnan, J., Antón-García, D., Farré, Y., Odobel, F., & Reisner, E. (2019). Inverse Opal CuCrO2 Photocathodes for H2 Production Using Organic Dyes and a Molecular Ni Catalyst. ACS catalysis, 9(10), 9530-9538. https://doi.org/10.1021/acscatal.9b02984

Dye-sensitized photoelectrochemical (DSPEC) cells are an emerging approach to producing solar fuels. The recent development of delafossite CuCrO2 as a p-type semiconductor has enabled H2 generation through the coassembly of catalyst and dye component... Read More about Inverse Opal CuCrO2 Photocathodes for H2 Production Using Organic Dyes and a Molecular Ni Catalyst.

The contribution from rotating massive stars to the enrichment in Sr and Ba of the Milky Way (2019)
Journal Article
Rizzuti, F., Cescutti, G., Matteucci, F., Chieffi, A., Hirschi, R., & Limongi, M. (2019). The contribution from rotating massive stars to the enrichment in Sr and Ba of the Milky Way. Monthly Notices of the Royal Astronomical Society, 489(4), 5244 -5255. https://doi.org/10.1093/mnras/stz2505

Most neutron capture elements have a double production by r- and s-processes, but the question of production sites is complex and still open. Recent studies show that including stellar rotation can have a deep impact on nucleosynthesis. We studied th... Read More about The contribution from rotating massive stars to the enrichment in Sr and Ba of the Milky Way.

The Gaia-ESO survey: Calibrating the relationship between Age and the [C/N] abundance ratio with open clusters (2019)
Journal Article
Casali, G., Magrini, L., Tognelli, E., Jackson, R., Jeffries, R., Lagarde, N., …Bayo, A. (2019). The Gaia-ESO survey: Calibrating the relationship between Age and the [C/N] abundance ratio with open clusters. Astronomy & Astrophysics, 629, Article A62. https://doi.org/10.1051/0004-6361/201935282

Context: In the era of large high-resolution spectroscopic surveys such as Gaia-ESO and APOGEE, high-quality spectra can contribute to our understanding of the Galactic chemical evolution by providing abundances of elements that belong to the diffe... Read More about The Gaia-ESO survey: Calibrating the relationship between Age and the [C/N] abundance ratio with open clusters.

The VMC Survey - XXXIV. Morphology of Stellar Populations in the Magellanic Clouds (2019)
Journal Article
El Youssoufi, D., Cioni, M. L., Bell, C. P. M., Rubele, S., Bekki, K., de Grijs, R., …Van Loon, J. T. (2019). The VMC Survey - XXXIV. Morphology of Stellar Populations in the Magellanic Clouds. Monthly Notices of the Royal Astronomical Society, 490(1), 1076-1093. https://doi.org/10.1093/mnras/stz2400

The Magellanic Clouds are nearby dwarf irregular galaxies whose morphologies show different properties when traced by different stellar populations, making them an important laboratory for studying galaxy morphologies. We study the morphology of the... Read More about The VMC Survey - XXXIV. Morphology of Stellar Populations in the Magellanic Clouds.

Phenotypic Plasticity of Nest-Mate Recognition Cues in Formica exsecta Ants. (2019)
Journal Article
Martin, S. J., Drijfhout, F. P., & Hart, A. G. (2019). Phenotypic Plasticity of Nest-Mate Recognition Cues in Formica exsecta Ants. Journal of Chemical Ecology, 735 -740. https://doi.org/10.1007/s10886-019-01103-2

It is well established that many ant species have evolved qualitatively distinct species-specific chemical profile that are stable over large geographical distances. Within these species profiles quantitative variations in the chemical profile allows... Read More about Phenotypic Plasticity of Nest-Mate Recognition Cues in Formica exsecta Ants..

WASP-166b: a bloated super-Neptune transiting a V = 9 star (2019)
Journal Article
Maxted, Hellier, & Smalley. (2019). WASP-166b: a bloated super-Neptune transiting a V = 9 star. Monthly Notices of the Royal Astronomical Society, 3067 -3075. https://doi.org/10.1093/mnras/stz1903

We report the discovery of WASP-166b, a super-Neptune planet with a mass of 0.1 MJup (1.9 MNep) and a bloated radius of 0.63 RJup. It transits a V = 9.36, F9V star in a 5.44-d orbit that is aligned with the stellar rotation axis (sky-projected obliqu... Read More about WASP-166b: a bloated super-Neptune transiting a V = 9 star.

A direct measurement of the 17O(a,?)21Ne reaction in inverse kinematics and its impact on heavy element production (2019)
Journal Article
Taggart, M., Akers, C., Laird, A., Hager, U., Ruiz, C., Hutcheon, D., …Williams, M. (2019). A direct measurement of the 17O(a,?)21Ne reaction in inverse kinematics and its impact on heavy element production. Physics Letters B, 798(10), Article 134894. https://doi.org/10.1016/j.physletb.2019.134894

During the slow neutron capture process in massive stars, reactions on light elements can both produce and absorb neutrons thereby influencing the final heavy element abundances. At low metallicities, the high neutron capture rate of 16O can inhibit... Read More about A direct measurement of the 17O(a,?)21Ne reaction in inverse kinematics and its impact on heavy element production.

3D Simulations and MLT. I. Renzini’s Critique (2019)
Journal Article
Arnett, W. D., Meakin, C., Hirschi, R., Cristini, A., Georgy, C., Campbell, S., …Mocák, M. (2019). 3D Simulations and MLT. I. Renzini’s Critique. Astrophysical Journal, 882(1), 18. https://doi.org/10.3847/1538-4357/ab21d9

Renzini wrote an influential critique of “overshooting” in mixing-length theory (MLT), as used in stellar evolution codes, and concluded that three-dimensional fluid dynamical simulations were needed. Such simulations are now well tested. Implicit la... Read More about 3D Simulations and MLT. I. Renzini’s Critique.

The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – I. The bar and outskirts of the Small Magellanic Cloud (2019)
Journal Article
Bell, C. P. M., Cioni, M. L., Wright, A. H., Rubele, S., Nidever, D. L., Tatton, B. L., …Muñoz, R. R. (2019). The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – I. The bar and outskirts of the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 3200 -3217. https://doi.org/10.1093/mnras/stz2325

We present a method to map the total intrinsic reddening of a foreground extinguishing medium via the analysis of spectral energy distributions (SEDs) of background galaxies. In this pilot study, we implement this technique in two distinct regions of... Read More about The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – I. The bar and outskirts of the Small Magellanic Cloud.

Social, Economic, and Political Contexts for Chemistry Through Sustainability. (2019)
Presentation / Conference
Haxton, K. (2019, August). Social, Economic, and Political Contexts for Chemistry Through Sustainability. Presented at Variety in Chemistry Education / Physics Higher Education Conference 2019

Chemistry has a complex relationship with society: on one hand income generator and employer, on the other polluter and exploiter. Chemistry students must, through their undergraduate degrees, learn to place their core chemical concepts in the wider... Read More about Social, Economic, and Political Contexts for Chemistry Through Sustainability..

NuGrid stellar data set – III. Updated low-mass AGB models and s-process nucleosynthesis with metallicities Z= 0.01, Z = 0.02, and Z = 0.03 (2019)
Journal Article
Battino, U., Tattersall, A., Lederer-Woods, C., Herwig, F., Denissenkov, P., Hirschi, R., …Collaboration, T. N. (2019). NuGrid stellar data set – III. Updated low-mass AGB models and s-process nucleosynthesis with metallicities Z= 0.01, Z = 0.02, and Z = 0.03. Monthly Notices of the Royal Astronomical Society, 489(1), 1082 -1098. https://doi.org/10.1093/mnras/stz2158

The production of the neutron-capture isotopes beyond iron that we observe today in the Solar system is the result of the combined contribution of the r-process, the s-process, and possibly the i-process. Low-mass asymptotic giant branch (AGB) (1.5 &... Read More about NuGrid stellar data set – III. Updated low-mass AGB models and s-process nucleosynthesis with metallicities Z= 0.01, Z = 0.02, and Z = 0.03.

Relative Importance of Convective Uncertainties (2019)
Conference Proceeding
Kaiser, E. A., Hirschi, R., Arnett, W. D., Cristini, A., Georgy, C., & Scott, L. J. A. (2019). Relative Importance of Convective Uncertainties. . https://doi.org/10.1007/978-3-030-13876-9_71

Convection plays a key role in the evolution of stars due to energy transport and mixing of composition. Despite its importance, this process is still not well understood. One longstanding conundrum in all 1D stellar evolution codes is the treatment... Read More about Relative Importance of Convective Uncertainties.

Testing Application of Geographical Information Systems, Forensic Geomorphology and Electrical Resistivity Tomography to Investigate Clandestine Grave Sites in Colombia, South America (2019)
Journal Article
Martin Molina, C., Wisniewski, K. D., Drake, J., Baena, A., Guatame, A., & Pringle, J. K. (2020). Testing Application of Geographical Information Systems, Forensic Geomorphology and Electrical Resistivity Tomography to Investigate Clandestine Grave Sites in Colombia, South America. Journal of Forensic Sciences, 65(1), 266-273. https://doi.org/10.1111/1556-4029.14168

Colombian forensic investigators required assistance locating clandestine burials of missing persons related to human right atrocities from 14 years ago. Geoscientific search methods were trialled, including a predictive spatial statistical model, us... Read More about Testing Application of Geographical Information Systems, Forensic Geomorphology and Electrical Resistivity Tomography to Investigate Clandestine Grave Sites in Colombia, South America.

Unexpected linkage isomerism in chiral tetranuclear bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) grids (2019)
Journal Article
Hegarty, I. N., Dalton, H. L., Henwood, A. F., Hawes, C. S., & Gunnlaugsson, T. (2019). Unexpected linkage isomerism in chiral tetranuclear bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) grids. Chemical Communications, 9523-9526. https://doi.org/10.1039/c9cc03316e

The synthesis of a chiral bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligand is described and its coordination chemistry with Cu(NO3)2 and [Cu(MeCN)4]PF6 is explored in the crystalline phase as well as in solution. Chiral [2 × 2] tetranuc... Read More about Unexpected linkage isomerism in chiral tetranuclear bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) grids.

An ab initio study of the valence tautomerism of type B mesoionic rings (2019)
Journal Article
(2019). An ab initio study of the valence tautomerism of type B mesoionic rings. Tetrahedron Letters, https://doi.org/10.1016/j.tetlet.2019.06.035

The MP2 calculated Gibbs free energies of a series of type B mesoionic rings and their acyclic valence tautomers suggest that in the gas phase the relative stability of the mesoionic ring increases with single bond strength (S-S > RN-NR > O-O). Inclu... Read More about An ab initio study of the valence tautomerism of type B mesoionic rings.

Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization (2019)
Journal Article
Luque, R., Pallé, E., Kossakowski, D., Dreizler, S., Kemmer, J., Espinoza, N., …Wohler, B. (2019). Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization. Astronomy and Astrophysics, 628, Article A39. https://doi.org/10.1051/0004-6361/201935801

We report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5 V star, using data from the Transiting Exoplanet Survey Satellite (TESS). GJ 357 b (TOI-562.01) is a transiting, hot, Earth-sized planet (Teq = 525 ± 11 K) with a... Read More about Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization.

Uncertainties in νp-process nucleosynthesis from Monte Carlo variation of reaction rates (2019)
Journal Article
Nishimura (西村信哉), N., Rauscher, T., Hirschi, R., Hirschi, R., Cescutti, G., Murphy, A. S. J., & Fröhlich, C. (2019). Uncertainties in νp-process nucleosynthesis from Monte Carlo variation of reaction rates. Monthly Notices of the Royal Astronomical Society, 489(1), 1379-1396. https://doi.org/10.1093/mnras/stz2104

It has been suggested that a ?p process can occur when hot, dense, and proton-rich matter is expanding within a strong flux of anti-neutrinos. In such an environment, proton-rich nuclides can be produced in sequences of proton captures and (n, p) rea... Read More about Uncertainties in νp-process nucleosynthesis from Monte Carlo variation of reaction rates.

Microbial uptake kinetics of dissolved organic carbon (DOC) compound groups from river water and sediments. (2019)
Journal Article
(2019). Microbial uptake kinetics of dissolved organic carbon (DOC) compound groups from river water and sediments. Scientific reports, 11229 - ?. https://doi.org/10.1038/s41598-019-47749-6

Dissolved organic matter (DOM) represents a key component of carbon (C) cycling in freshwater ecosystems. While the behaviour of bulk dissolved organic carbon (DOC) in aquatic ecosystems is well studied, comparatively little is known about the turnov... Read More about Microbial uptake kinetics of dissolved organic carbon (DOC) compound groups from river water and sediments..

Synthesis of glycosyl chlorides using catalytic Appel conditions (2019)
Journal Article
Pongener, I., Nikitin, K., & McGarrigle, E. M. (in press). Synthesis of glycosyl chlorides using catalytic Appel conditions. Organic and Biomolecular Chemistry, 17(32), 7531-7535. https://doi.org/10.1039/c9ob01544b

The stereoselective synthesis of glycosyl chlorides using catalytic Appel conditions is described. Good yields of α-glycosyl chlorides were obtained using a range of glycosyl hemiacetals, oxalyl chloride and 5 mol% Ph3PO. For 2-deoxysugars treatment... Read More about Synthesis of glycosyl chlorides using catalytic Appel conditions.