All Outputs (32)

Explaining the chemical trajectories of accreted and in-situ halo stars of the Milky Way (2020)
Journal Article
Brook, C. B., Kawata, D., Gibson, B. K., Gallart, C., & Vicente, A. (2020). Explaining the chemical trajectories of accreted and in-situ halo stars of the Milky Way. Monthly notices of the Royal Astronomical Society, 495(3), 2645-2651. https://doi.org/10.1093/mnras/staa992

© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. The Milky Way underwent its last significant merger ten billion years ago, when the Gaia-Enceladus-Sausage (GES) was accreted. Accreted GES stars a... Read More about Explaining the chemical trajectories of accreted and in-situ halo stars of the Milky Way.

FLASH early science - Discovery of an intervening H I 21-cm absorber from an ASKAP survey of the GAMA 23 field (2020)
Journal Article
Allison, J. R., Sadler, E. M., Bellstedt, S., Davies, L. J., Driver, S. P., Ellison, S. L., Huynh, M., Kapinska, A. D., Mahony, E. K., Moss, V. A., Robotham, A. S., Whiting, M. T., Curran, S. J., Darling, J., Hotan, A. W., Hunstead, R. W., Koribalski, B. S., Lagos, C. D., Pettini, M., Pimbblet, K. A., & Voronkov, M. A. (2020). FLASH early science - Discovery of an intervening H I 21-cm absorber from an ASKAP survey of the GAMA 23 field. Monthly notices of the Royal Astronomical Society, 494(3), 3627-3641. https://doi.org/10.1093/MNRAS/STAA949

© 2020 The Author(s) We present early science results from the First Large Absorption Survey in H I (FLASH), a spectroscopically blind survey for 21-cm absorption lines in cold hydrogen (H I) gas at cosmological distances using the Australian Square... Read More about FLASH early science - Discovery of an intervening H I 21-cm absorber from an ASKAP survey of the GAMA 23 field.

Realisation of a sub-wavelength dimple using a 193 nm wavelength photonic nano jet (2020)
Journal Article
Al-Jarwany, Q. A., Mohammed, A. F., Hamza, A. O., Bouillard, J. S., Adawi, A. M., Pamme, N., & Walton, C. D. (2020). Realisation of a sub-wavelength dimple using a 193 nm wavelength photonic nano jet. Chemical Physics Letters, 750, Article 137400. https://doi.org/10.1016/j.cplett.2020.137400

There are many areas of research that benefit from tight focussing of light. We report experimental and computational results of a laser irradiated silica microsphere, 1 μm diameter localised on an SU-8 substrate. A single pulse from an ArF excimer l... Read More about Realisation of a sub-wavelength dimple using a 193 nm wavelength photonic nano jet.

The influence of a top-heavy integrated galactic IMF and dust on the chemical evolution of high-redshift starbursts (2020)
Journal Article
Palla, M., Calura, F., Matteucci, F., Fan, X. L., Vincenzo, F., & Lacchin, E. (2020). The influence of a top-heavy integrated galactic IMF and dust on the chemical evolution of high-redshift starbursts. Monthly notices of the Royal Astronomical Society, 494(2), 2355-2373. https://doi.org/10.1093/mnras/staa848

We study the effects of the integrated galactic initial mass function (IGIMF) and dust evolution on the abundance patterns of high redshift starburst galaxies. In our chemical models, the rapid collapse of gas clouds triggers an intense and rapid sta... Read More about The influence of a top-heavy integrated galactic IMF and dust on the chemical evolution of high-redshift starbursts.

Chromium Nucleosynthesis and Silicon-Carbon Shell Mergers in Massive Stars (2020)
Journal Article
Côté, B., Jones, S., Herwig, F., & Pignatari, M. (2020). Chromium Nucleosynthesis and Silicon-Carbon Shell Mergers in Massive Stars. The Astrophysical journal, 892(1), Article 57. https://doi.org/10.3847/1538-4357/ab77ac

We analyze the production of the element Cr in galactic chemical evolution (GCE) models using the NuGrid nucleosynthesis yields set. We show that the unusually large [Cr/Fe] abundance at [Fe/H] ≈ 0 reported by previous studies using those yields and... Read More about Chromium Nucleosynthesis and Silicon-Carbon Shell Mergers in Massive Stars.

Pattern formation in two-dimensional hard-core/soft-shell systems with variable soft shell profiles (2020)
Journal Article
Somerville, W. R. C., Law, A. D., Rey, M., Vogel, N., Archer, A. J., & Buzza, D. M. A. (2020). Pattern formation in two-dimensional hard-core/soft-shell systems with variable soft shell profiles. Soft matter, 16(14), 3564-3573. https://doi.org/10.1039/d0sm00092b

Hard-core/soft shell (HCSS) particles have been shown to self-assemble into a remarkably rich variety of structures under compression due to the simple interplay between the hard-core and soft-shoulder length scales in their interactions. Most studie... Read More about Pattern formation in two-dimensional hard-core/soft-shell systems with variable soft shell profiles.

Chemical evolution of ultrafaint dwarf galaxies: testing the IGIMF (2020)
Journal Article
Lacchin, E., Matteucci, F., Vincenzo, F., & Palla, M. (2020). Chemical evolution of ultrafaint dwarf galaxies: testing the IGIMF. Monthly notices of the Royal Astronomical Society, 495(3), 3276-3294. https://doi.org/10.1093/mnras/staa585

We test the integrated galactic initial mass function (IGIMF) on the chemical evolution of 16 ultrafaint dwarf (UFD) galaxies discussing in detail the results obtained for three of them: Boötes I, Boötes II, and Canes Venatici I, taken as prototypes... Read More about Chemical evolution of ultrafaint dwarf galaxies: testing the IGIMF.

Atomistic study on the pressure dependence of the melting point of NdFe<inf>12</inf> (2020)
Journal Article
Skelland, C., Westmoreland, S. C., Ostler, T., Evans, R. F., Chantrell, R. W., Yano, M., …Hrkac, G. (2020). Atomistic study on the pressure dependence of the melting point of NdFe12. AIP Advances, 10(2), Article 025130. https://doi.org/10.1063/1.5130450

We investigated, using molecular dynamics, how pressure affects the melting point of the recently theorised and epitaxially grown structure NdFe12. We modified Morse potentials using experimental constants and a genetic algorithm code, before running... Read More about Atomistic study on the pressure dependence of the melting point of NdFe<inf>12</inf>.

The Nucleosynthetic Yields of Core-collapse Supernovae: Prospects for the Next Generation of Gamma-Ray Astronomy (2020)
Journal Article
Andrews, S., Fryer, C., Even, W., Jones, S., & Pignatari, M. (2020). The Nucleosynthetic Yields of Core-collapse Supernovae: Prospects for the Next Generation of Gamma-Ray Astronomy. The Astrophysical journal, 890(1), Article 35. https://doi.org/10.3847/1538-4357/ab64f8

Though the neutrino-driven convection model for the core-collapse explosion mechanism has received strong support in recent years, there are still many uncertainties in the explosion parameters—such as explosion energy, remnant mass, and end-of-life... Read More about The Nucleosynthetic Yields of Core-collapse Supernovae: Prospects for the Next Generation of Gamma-Ray Astronomy.

Nanoscale junctions for single molecule electronics fabricated using bilayer nanoimprint lithography combined with feedback controlled electromigration (2020)
Journal Article
Gee, A., Jaafar, A. H., & Kemp, N. T. (2020). Nanoscale junctions for single molecule electronics fabricated using bilayer nanoimprint lithography combined with feedback controlled electromigration. Nanotechnology, 31(15), Article 155203. https://doi.org/10.1088/1361-6528/ab6473

Nanoimprint lithography (NIL) is a fast, simple and high throughput technique that allows fabrication of structures with nanometre precision features at low cost. We present an advanced bilayer nanoimprint lithography approach to fabricate four termi... Read More about Nanoscale junctions for single molecule electronics fabricated using bilayer nanoimprint lithography combined with feedback controlled electromigration.

GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation? (2020)
Journal Article
Moretti, A., Paladino, R., Poggianti, B. M., Serra, P., Roediger, E., Gullieuszik, M., Tomičić, N., Radovich, M., Vulcani, B., Jaffé, Y. L., Fritz, J., Bettoni, D., Ramatsoku, M., & Wolter, A. (2020). GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation?. The Astrophysical journal, 889(1), https://doi.org/10.3847/1538-4357/ab616a

Within the GASP survey, aimed at studying the effect of ram pressure stripping on star formation quenching in cluster galaxies, we analyze here ALMA observations of the jellyfish galaxy JW100. We find an unexpected large amount of molecular gas (∼2.5... Read More about GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation?.

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., …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.