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Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi (2020)
Journal Article
Chaplin, W. J., Serenelli, A. M., Miglio, A., Morel, T., Mackereth, J. T., Vincenzo, F., Kjeldsen, H., Basu, S., Ball, W. H., Stokholm, A., Verma, K., Mosumgaard, J. R., Silva Aguirre, V., Mazumdar, A., Ranadive, P., Antia, H. M., Lebreton, Y., Ong, J., Appourchaux, T., Bedding, T. R., …Yıldız, M. (2020). Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi. Nature Astronomy, 4(4), 382-389. https://doi.org/10.1038/s41550-019-0975-9

Over the course of its history, the Milky Way has ingested multiple smaller satellite galaxies1. Although these accreted stellar populations can be forensically identified as kinematically distinct structures within the Galaxy, it is difficult in gen... Read More about Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi.

Electrical detection of spin state switching in electromigrated nanogap devices (2020)
Thesis
Gee, A. Electrical detection of spin state switching in electromigrated nanogap devices. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4222559

Spin crossover is an effect shown in some transition metal complexes where the spin state of the molecule undergoes a transition from a low spin to a high spin state via the application of light, pressure or a change in temperature. This behaviour ma... Read More about Electrical detection of spin state switching in electromigrated nanogap devices.

Enhanced chemical etch rate of borosilicate glass via spatially resolved laser-generated color centers (2019)
Journal Article
Serkov, A. A., & Snelling, H. V. (2020). Enhanced chemical etch rate of borosilicate glass via spatially resolved laser-generated color centers. Journal of Physics D: Applied Physics, 53(13), Article 135306. https://doi.org/10.1088/1361-6463/ab6515

© 2020 IOP Publishing Ltd. In this work, it is shown that controllable increases in chemical reactivity of borosilicate glass can be induced through spatially resolved femtosecond laser irradiation at fluence values significantly lower than the damag... Read More about Enhanced chemical etch rate of borosilicate glass via spatially resolved laser-generated color centers.

GASP XXIII: a jellyfish galaxy as an astrophysical laboratory of the baryonic cycle (2019)
Journal Article
Poggianti, B. M., Ignesti, A., Gitti, M., Wolter, A., Brighenti, F., Biviano, A., George, K., Vulcani, B., Gullieuszik, M., Moretti, A., Paladino, R., Bettoni, D., Franchetto, A., Jaffé, Y. L., Radovich, M., Roediger, E., Tomičić, N., Tonnesen, S., Bellhouse, C., Fritz, J., & Omizzolo, A. (2019). GASP XXIII: a jellyfish galaxy as an astrophysical laboratory of the baryonic cycle. The Astrophysical journal, 887(2), Article 155. https://doi.org/10.3847/1538-4357/ab5224

© 2019. The American Astronomical Society. All rights reserved. With MUSE, Chandra, VLA, ALMA, and UVIT data from the GASP program, we study the multiphase baryonic components in a jellyfish galaxy (JW100) with a stellar mass 3.2 × 1011 M o hosting a... Read More about GASP XXIII: a jellyfish galaxy as an astrophysical laboratory of the baryonic cycle.

Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios (2019)
Journal Article
Hoppe, P., Stancliffe, R. J., Pignatari, M., & Amari, S. (2019). Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios. The Astrophysical journal, 887(1), 10. https://doi.org/10.3847/1538-4357/ab521c

We report high-resolution C, N, Al, Si, and S isotope data of 38 presolar SiC grains of type AB. Seventeen of these grains are of subtype AB1 (14N/15N < 440 = solar) and 20 of subtype AB2 (14N/15N ≥ 440), previously proposed to be mainly from superno... Read More about Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios.

Optical properties of nanowires based on a blend of poly (9,9-dioctylfluorene) [PFO] and poly(9,9-dioctyl fluorene-alt-benzothiadiazole) [F8BT] (2019)
Journal Article
Khalil, G. E., Adawi, A. M., & Lidzey, D. G. (2020). Optical properties of nanowires based on a blend of poly (9,9-dioctylfluorene) [PFO] and poly(9,9-dioctyl fluorene-alt-benzothiadiazole) [F8BT]. Physica E: Low-dimensional Systems and Nanostructures, 118, Article 113829. https://doi.org/10.1016/j.physe.2019.113829

Near-field and far-field optical microscopy are used to study the optical properties of nanowires based on a blend of 95% poly (9,9-dioctylfluorene) [PFO] doped with 5% poly (9,9-dioctylfluorene-alt-benzothiadiazole) [F8BT]. Single nanowires were ima... Read More about Optical properties of nanowires based on a blend of poly (9,9-dioctylfluorene) [PFO] and poly(9,9-dioctyl fluorene-alt-benzothiadiazole) [F8BT].

The rotational profiles of cluster galaxies (2019)
Journal Article
Bilton, L. E., Hunt, M., Pimbblet, K. A., & Roediger, E. (2019). The rotational profiles of cluster galaxies. Monthly notices of the Royal Astronomical Society, 490(4), 5017-5032. https://doi.org/10.1093/mnras/stz2927

© 2019 The Author(s) We compile two samples of cluster galaxies with complimentary hydrodynamic and N-body analysis using FLASH code to ascertain how their differing populations drive their rotational profiles and to better understand their dynamical... Read More about The rotational profiles of cluster galaxies.

Saxitoxin and tetrodotoxin bioavailability increases in future oceans (2019)
Journal Article
Roggatz, C. C., Fletcher, N., Benoit, D. M., Algar, A. C., Doroff, A., Wright, B., Wollenberg Valero, K. C., & Hardege, J. D. (2019). Saxitoxin and tetrodotoxin bioavailability increases in future oceans. Nature Climate Change, 9(11), 840-844. https://doi.org/10.1038/s41558-019-0589-3

© 2019, The Author(s), under exclusive licence to Springer Nature Limited. Increasing atmospheric CO2 levels are largely absorbed by the ocean, decreasing surface water pH1. In combination with increasing ocean temperatures, these changes have been i... Read More about Saxitoxin and tetrodotoxin bioavailability increases in future oceans.

He abundances in disc galaxies -- I. Predictions from cosmological chemodynamical simulations (2019)
Journal Article
Vincenzo, F., Miglio, A., Kobayashi, C., Ted Mackereth, J., & Montalban, J. (2019). He abundances in disc galaxies -- I. Predictions from cosmological chemodynamical simulations. Astronomy and Astrophysics, 630, Article A125. https://doi.org/10.1051/0004-6361/201935886

We investigate how the stellar and gas-phase He abundances evolve as functions of time within simulated star-forming disc galaxies with different star formation histories. We make use of a cosmological chemodynamical simulation for galaxy formation a... Read More about He abundances in disc galaxies -- I. Predictions from cosmological chemodynamical simulations.

ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy (2019)
Journal Article
Jáchym, P., Kenney, J. D., Sun, M., Combes, F., Cortese, L., Scott, T. C., Sivanandam, S., Brinks, E., Roediger, E., Palouš, J., & Fumagalli, M. (2019). ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy. The Astrophysical journal, 883(2), Article 145. https://doi.org/10.3847/1538-4357/ab3e6c

© 2019 The American Astronomical Society. All rights reserved. We present the first high-resolution map of the cold molecular gas distribution as traced by CO(2-1) emission with ALMA in a long ram pressure stripped tail. The Norma cluster galaxy ESO... Read More about ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy.

Intramolecular stretching vibrational states and frequency shifts of (H2)2 confined inside the large cage of clathrate hydrate from an eight-dimensional quantum treatment using small basis sets (2019)
Journal Article
Felker, P. M., Lauvergnat, D., Scribano, Y., Benoit, D. M., & Bačić, Z. (2019). Intramolecular stretching vibrational states and frequency shifts of (H2)2 confined inside the large cage of clathrate hydrate from an eight-dimensional quantum treatment using small basis sets. The Journal of chemical physics, 151(12), Article 124311. https://doi.org/10.1063/1.5124051

We report the results of calculations pertaining to the HH intramolecular stretching fundamentals of (p-H2)2 encapsulated in the large cage of structure II clathrate hydrate. The eight-dimensional (8D) quantum treatment assumes rotationless (j = 0) H... Read More about Intramolecular stretching vibrational states and frequency shifts of (H2)2 confined inside the large cage of clathrate hydrate from an eight-dimensional quantum treatment using small basis sets.

Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 Surveys (2019)
Journal Article
Birko, D., Zwitter, T., Grebel, E. K., Parker, Q. A., Kordopatis, G., Bland-Hawthorn, J., Freeman, K., Guiglion, G., Gibson, B. K., Navarro, J., Reid, W., Seabroke, G. M., Steinmetz, M., & Watson, F. (in press). Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 Surveys. Astronomical Journal, 158(4), Article 155. https://doi.org/10.3847/1538-3881/ab3cc1

The combination of the final version of the Radial Velocity Experiment (RAVE) spectroscopic survey data release 6 with radial velocities (RVs) and astrometry from Gaia DR2 allows us to identify and create a catalog of single-lined binary star candida... Read More about Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 Surveys.

The s process in rotating low-mass AGB stars: Nucleosynthesis calculations in models matching asteroseismic constraints (2019)
Journal Article
Den Hartogh, J. W., Hirschi, R., Lugaro, M., Doherty, C. L., Battino, U., Herwig, F., Pignatari, M., & Eggenberger, P. (2019). The s process in rotating low-mass AGB stars: Nucleosynthesis calculations in models matching asteroseismic constraints. Astronomy and Astrophysics, 629, Article A123. https://doi.org/10.1051/0004-6361/201935476

Aims. We investigate the s-process during the AGB phase of stellar models whose cores are enforced to rotate at rates consistent with asteroseismology observations of their progenitors and successors. Methods. We calculated new 2 M⊙ , Z  =  0.01 mode... Read More about The s process in rotating low-mass AGB stars: Nucleosynthesis calculations in models matching asteroseismic constraints.

2D-Galactic chemical evolution: The role of the spiral density wave (2019)
Journal Article
Mollá, M., Wekesa, S., Cavichia, O., Díaz, I., Gibson, B. K., Rosales-Ortega, F. F., Ascasibar, Y., Wamalwa, D. S., & Sánchez, S. F. (2019). 2D-Galactic chemical evolution: The role of the spiral density wave. Monthly notices of the Royal Astronomical Society, 490(1), 665-682. https://doi.org/10.1093/mnras/stz2537

© 2019 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. We present a 2D chemical evolution code applied to a Milky Way type Galaxy, incorporating the role of spiral arms in shaping azimuthal abundance v... Read More about 2D-Galactic chemical evolution: The role of the spiral density wave.

Heterogeneity of inverted calcium II H:K ratio cluster galaxies (2019)
Journal Article
Pimbblet, K. A., Crossett, J. P., & Fraser-McKelvie, A. (2019). Heterogeneity of inverted calcium II H:K ratio cluster galaxies. Monthly notices of the Royal Astronomical Society, 490(1), 455-466. https://doi.org/10.1093/mnras/stz2549

© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society The ratio of calcium II H plus H∊ to calcium II K inverts as a galaxy stellar population moves from being dominated by older stars to possessing mor... Read More about Heterogeneity of inverted calcium II H:K ratio cluster galaxies.

A direct measurement of the 17O(α,γ)21Ne reaction in inverse kinematics and its impact on heavy element production (2019)
Journal Article
Taggart, M. P., Akers, C., Laird, A. M., Hager, U., Ruiz, C., Hutcheon, D. A., Bentley, M. A., Brown, J. R., Buchmann, L., Chen, A. A., Chen, J., Chipps, K. A., Choplin, A., D'Auria, J. M., Davids, B., Davis, C., Diget, C. A., Erikson, L., Fallis, J., Fox, S. P., …Williams, M. (2019). A direct measurement of the 17O(α,γ)21Ne reaction in inverse kinematics and its impact on heavy element production. Physics letters. B, 798, Article 134894. https://doi.org/10.1016/j.physletb.2019.134894

© 2019 The Authors 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... Read More about A direct measurement of the 17O(α,γ)21Ne reaction in inverse kinematics and its impact on heavy element production.

Redshift measurement through star formation (2019)
Journal Article
Lindholmer, M. O., & Pimbblet, K. A. (2019). Redshift measurement through star formation. Astronomy and Astrophysics, 629, Article A7. https://doi.org/10.1051/0004-6361/201833046

© ESO 2019. In this work we use the property that, on average, star formation rate increases with redshift for objects with the same mass - the so called galaxy main sequence - to measure the redshift of galaxy clusters. We use the fact that the gene... Read More about Redshift measurement through star formation.

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., Trappitsch, R., den Hartogh, J. W., & Pignatari, M. (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

© 2019 Oxford University Press. All rights reserved. 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-p... 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.

Inhomogeneous Chemical Evolution of r-Process Elements in the Galactic Halo (2019)
Presentation / Conference Contribution
Wehmeyer, B., Fröhlich, C., Pignatari, M., & Thielemann, F. K. Inhomogeneous Chemical Evolution of r-Process Elements in the Galactic Halo. Presented at Nuclei in the Cosmos XV, Assergi, Italy

© 2019, Springer Nature Switzerland AG. The origin of the heaviest elements is still a matter of debate. For the rapid neutron capture process (“r-process”), multiple sites have been proposed, e.g., neutron star mergers and (sub-classes) of supernova... Read More about Inhomogeneous Chemical Evolution of r-Process Elements in the Galactic Halo.