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Inhomogeneous chemical evolution of r-process elements (2016)
Presentation / Conference Contribution
Wehmeyer, B., Pignatari, M., & Thielemann, F.-K. Inhomogeneous chemical evolution of r-process elements. Presented at CETUP* 2015 – WORKSHOP ON DARK MATTER, NEUTRINO PHYSICS AND ASTROPHYSICS AND PPC 2015 – IXTH INTERNATIONAL CONFERENCE ON INTERCONNECTIONS BETWEEN PARTICLE PHYSICS AND COSMOLOGY, Deadwood, South Dakota, USA

We report the results of a galactic chemical evolution (GCE) study for r-process- and alpha elements. For this work, we used the inhomogeneous GCE model "ICE", which allows to keep track of the galactic abundances of elements produced by different as... Read More about Inhomogeneous chemical evolution of r-process elements.

A photometrically and spectroscopically confirmed population of passive spiral galaxies (2016)
Journal Article
Fraser-McKelvie, A., Brown, M. J. I., Pimbblet, K. A., Dolley, T., Crossett, J. P., & Bonne, N. J. (2016). A photometrically and spectroscopically confirmed population of passive spiral galaxies. Monthly notices of the Royal Astronomical Society. Letters, 462(1), L11-L15. https://doi.org/10.1093/mnrasl/slw117

We have identified a population of passive spiral galaxies from photometry and integral field spectroscopy. We selected z < 0.035 spiral galaxies that have WISE colours consistent with little mid-infrared emission from warm dust. Matched aperture pho... Read More about A photometrically and spectroscopically confirmed population of passive spiral galaxies.

Uncertainties in Galactic Chemical Evolution Models (2016)
Journal Article
Côté, B., Ritter, C., O’Shea, B. W., Herwig, F., Pignatari, M., Jones, S., & Fryer, C. L. (2016). Uncertainties in Galactic Chemical Evolution Models. The Astrophysical journal, 824(2), Article ARTN 82. https://doi.org/10.3847/0004-637X/824/2/82

We use a simple one-zone galactic chemical evolution model to quantify the uncertainties generated by the input parameters in numerical predictions for a galaxy with properties similar to those of the Milky Way. We compiled several studies from the l... Read More about Uncertainties in Galactic Chemical Evolution Models.

Cold fronts: probes of plasma astrophysics in galaxy clusters (2016)
Journal Article
ZuHone, J. A., & Roediger, E. (2016). Cold fronts: probes of plasma astrophysics in galaxy clusters. Journal of Plasma Physics, 82(3), 535820301-1-535820301-48. https://doi.org/10.1017/s0022377816000544

The most massive baryonic component of galaxy clusters is the “intracluster medium” (ICM), a diffuse, hot, weakly magnetized plasma that is most easily observed in the X-ray band. Despite being observed for decades, the macroscopic transport properti... Read More about Cold fronts: probes of plasma astrophysics in galaxy clusters.

Numerical investigation of the Rayleigh hypothesis for electromagnetic scattering by a particle (2016)
Journal Article
Auguie, B., Somerville, W. R. C., Roache, S., & Le Ru, E. C. (2016). Numerical investigation of the Rayleigh hypothesis for electromagnetic scattering by a particle. Journal of Optics, 18(7), Article 075007. https://doi.org/10.1088/2040-8978/18/7/075007

The validity of the Rayleigh hypothesis has been a long-standing issue in the applicability of the T-matrix method to near-field calculations, and despite numerous theoretical works, the practical consequences for numerical simulations have remained... Read More about Numerical investigation of the Rayleigh hypothesis for electromagnetic scattering by a particle.

Testing hydrodynamics schemes in galaxy disc simulations (2016)
Journal Article
Few, C. G., Dobbs, C., Pettitt, A., & Konstandin, L. (2016). Testing hydrodynamics schemes in galaxy disc simulations. Monthly notices of the Royal Astronomical Society, 460(4), 4382-4396. https://doi.org/10.1093/mnras/stw1226

We examine how three fundamentally different numerical hydrodynamics codes follow the evolution of an isothermal galactic disc with an external spiral potential. We compare an adaptive mesh refinement code (RAMSES), a smoothed particle hydrodynamics... Read More about Testing hydrodynamics schemes in galaxy disc simulations.

Fluorescent emission enhancement by aluminium nanoantenna arrays in the near UV (2016)
Journal Article
Dorh, N., Sarua, A., Stokes, J., Hueting, N. A., & Cryan, M. J. (2016). Fluorescent emission enhancement by aluminium nanoantenna arrays in the near UV. Journal of Optics, 18(7), 075008. https://doi.org/10.1088/2040-8978/18/7/075008

In this paper, we demonstrate fluorescence enhancement of a laser dye, using aluminium nanoantenna arrays designed for the near UV range. A series of nanorod arrays were fabricated by focused ion beam milling then spin-coated with a dye with an intri... Read More about Fluorescent emission enhancement by aluminium nanoantenna arrays in the near UV.

Magnetic cylindrical colloids at liquid interfaces exhibit non-volatile switching of their orientation in an external field (2016)
Journal Article
Newton, B. J., & Buzza, D. M. A. (2016). Magnetic cylindrical colloids at liquid interfaces exhibit non-volatile switching of their orientation in an external field. Soft matter, 12(24), 5285-5296. https://doi.org/10.1039/c6sm00136j

We study the orientation of magnetic cylindrical particles adsorbed at a liquid interface in an external field using analytical theory and high resolution finite element simulations. Cylindrical particles are interesting since they possess multiple l... Read More about Magnetic cylindrical colloids at liquid interfaces exhibit non-volatile switching of their orientation in an external field.

Lighting up stars in chemical evolution models: the CMD of Sculptor (2016)
Journal Article
Vincenzo, F., Matteucci, F., J. L. de Boer, T., Cignoni, M., & Tosi, M. (2016). Lighting up stars in chemical evolution models: the CMD of Sculptor. Monthly notices of the Royal Astronomical Society, 460(2), 2238–2244. https://doi.org/10.1093/mnras/stw1145

We present a novel approach to draw the synthetic color-magnitude diagram of galaxies, which can provide - in principle - a deeper insight in the interpretation and understanding of current observations. In particular, we `light up' the stars of chem... Read More about Lighting up stars in chemical evolution models: the CMD of Sculptor.

A millisecond pulsar in an extremely wide binary system (2016)
Journal Article
Bassa, C. G., Janssen, G. H., Stappers, B. W., Tauris, T. M., Wevers, T., Jonker, P. G., …Zhu, W. W. (2016). A millisecond pulsar in an extremely wide binary system. Monthly notices of the Royal Astronomical Society, 460(2), 2207-2222. https://doi.org/10.1093/mnras/stw1134

We report on 22 yr of radio timing observations of the millisecond pulsar J1024-0719 by the telescopes participating in the European Pulsar Timing Array (EPTA). These observations reveal a significant second derivative of the pulsar spin frequency an... Read More about A millisecond pulsar in an extremely wide binary system.

Probing astrophysically important states in the ²⁶Mg nucleus to study neutron sources for the s process (2016)
Journal Article
Talwar, R., Adachi, T., Berg, G. P. A., Bin, L., Bisterzo, S., Couder, M., deBoer, R. J., Fang, X., Fujita, H., Fujita, Y., Görres, J., Hatanaka, K., Itoh, T., Kadoya, T., Long, A., Miki, K., Patel, D., Pignatari, M., Shimbara, Y., Tamii, A., …Yosoi, M. (2016). Probing astrophysically important states in the ²⁶Mg nucleus to study neutron sources for the s process. Physical Review C, 93(5), https://doi.org/10.1103/physrevc.93.055803

Background: The ²²Ne(α,n) ²⁵Mg reaction is the dominant neutron source for the slow neutron capture process (s process) in massive stars, and contributes, together with C¹³(α,n)O¹⁶, to the production of neutrons for the s process in asymptotic giant... Read More about Probing astrophysically important states in the ²⁶Mg nucleus to study neutron sources for the s process.

Galaxy and Mass Assembly (GAMA): Improved emission lines measurements in four representative samples at 0.07 < z < 0.3 (2016)
Journal Article
Rodrigues, M., Foster, C., Taylor, E. N., Wright, A. H., Hopkins, A. M., Baldry, I., Brough, S., Bland-Hawthorn, J., Cluver, M. E., Lara-López, M. A., Liske, J., López-Sánchez, Á. R., & Pimbblet, K. A. (2016). Galaxy and Mass Assembly (GAMA): Improved emission lines measurements in four representative samples at 0.07 < z < 0.3. Astronomy and Astrophysics, 590, Article ARTN A18. https://doi.org/10.1051/0004-6361/201527836

This paper presents a new catalog of emission lines based on the GAMA II data for galaxies between 0.07 9.4 at z ~ 0.1 and log M∗> 10.6 at z ~ 0.30. We have developed a dedicated code called MARVIN that automates the main steps of the data analysis,... Read More about Galaxy and Mass Assembly (GAMA): Improved emission lines measurements in four representative samples at 0.07 < z < 0.3.

Structurally optimised BODIPY derivatives for imaging of mitochondrial dysfunction in cancer and heart cells (2016)
Journal Article
Nigam, S., Burke, B. P., Davies, L. H., Domarkas, J., Wallis, J. F., Waddell, P. G., Waby, J. S., Benoit, D. M., Seymour, A. M., Cawthorne, C., Higham, L. J., & Archibald, S. J. (2016). Structurally optimised BODIPY derivatives for imaging of mitochondrial dysfunction in cancer and heart cells. Chemical communications : Chem comm / the Royal Society of Chemistry, 52(44), 7114-7117. https://doi.org/10.1039/c5cc08325g

The structural features required for mitochondrial uptake of BODIPY-based optical imaging agents have been explored. The first derivatives of this class of dyes shown to have mitochondrial membrane potential-dependent uptake in both cancer and heart... Read More about Structurally optimised BODIPY derivatives for imaging of mitochondrial dysfunction in cancer and heart cells.

Adsorption of imidazole on Au(111) surface: Dispersion corrected density functional study (2016)
Journal Article
Izzaouihda, S., Mahjoubi, K., Abou El Makarim, H., Komiha, N., & Benoit, D. M. (2016). Adsorption of imidazole on Au(111) surface: Dispersion corrected density functional study. Applied Surface Science, 383, 233-239. https://doi.org/10.1016/j.apsusc.2016.04.144

We use density functional theory in the generalized gradient approximation to study the adsorption of imidazole on the Au(111) surface and account for dispersion effect using Grimme's empirical dispersion correction technique. Our results show that t... Read More about Adsorption of imidazole on Au(111) surface: Dispersion corrected density functional study.

GAMA/WiggleZ: the 1.4 GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution toz= 0.75 (2016)
Journal Article
Pracy, M. B., Ching, J. H. Y., Sadler, E. M., Croom, S. M., Baldry, I. K., Bland-Hawthorn, J., Brough, S., Brown, M. J. I., Couch, W. J., Davis, T. M., Drinkwater, M. J., Hopkins, A. M., Jarvis, M. J., Jelliffe, B., Jurek, R. J., Loveday, J., Pimbblet, K. A., Prescott, M., Wisnioski, E., & Woods, D. (2016). GAMA/WiggleZ: the 1.4 GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution toz= 0.75. Monthly notices of the Royal Astronomical Society, 460(1), 2-17. https://doi.org/10.1093/mnras/stw910

© 2016 The Authors. Published by Oxford University Press on behalf of The Royal Astronomical Society. We present radio active galactic nuclei (AGN) luminosity functions over the redshift range 0.005 < z < 0.75. The sample from which the luminosit... Read More about GAMA/WiggleZ: the 1.4 GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution toz= 0.75.

Excitonic optical Tamm states: a step towards a full molecular-dielectric photonic integration (2016)
Journal Article
Núnez-Sánchez, S., Lopez-Garcia, M., Murshidy, M. M., Abdel-Hady, A. G., Serry, M., Adawi, A. M., Rarity, J. G., Oulton, R., & Barnes, W. L. (2016). Excitonic optical Tamm states: a step towards a full molecular-dielectric photonic integration. ACS Photonics, 3(5), 743-748. https://doi.org/10.1021/acsphotonics.6b00060

We report the first experimental observation of an excitonic optical Tamm state supported at the interface between a periodic multilayer dielectric structure and an organic dye-doped polymer layer. The existence of such states is enabled by the metal... Read More about Excitonic optical Tamm states: a step towards a full molecular-dielectric photonic integration.

The diverse origins of neutron-capture elements in the metal-poor star HD 94028 : possible detection of products of i-process nucleosynthesis (2016)
Journal Article
Roederer, I. U., Karakas, A. I., Pignatari, M., & Herwig, F. (2016). The diverse origins of neutron-capture elements in the metal-poor star HD 94028 : possible detection of products of i-process nucleosynthesis. The Astrophysical journal, 821(1), Article ARTN 37. https://doi.org/10.3847/0004-637X/821/1/37

We present a detailed analysis of the composition and nucleosynthetic origins of the heavy elements in the metal-poor ([Fe/H] = −1.62 ± 0.09) star HD 94028. Previous studies revealed that this star is mildly enhanced in elements produced by the slow... Read More about The diverse origins of neutron-capture elements in the metal-poor star HD 94028 : possible detection of products of i-process nucleosynthesis.

The production of proton-rich isotopes beyond iron: The γ-process in stars (2016)
Journal Article
Pignatari, M., Göbel, K., Reifarth, R., & Travaglio, C. (2016). The production of proton-rich isotopes beyond iron: The γ-process in stars. International Journal of Modern Physics E, 25(4), Article 1630003. https://doi.org/10.1142/S0218301316300034

© 2016 World Scientific Publishing Company. Beyond iron, a small fraction of the total abundances in the Solar System is made of proton-rich isotopes, the p-nuclei. The clear understanding of their production is a fundamental challenge for nuclear as... Read More about The production of proton-rich isotopes beyond iron: The γ-process in stars.