Skip to main content

ASKAP commissioning observations of the GAMA 23 field (2019)
Journal Article
Leahy, D. A., Hopkins, A. M., Norris, R. P., Marvil, J., Collier, J. D., Taylor, E. N., …Wang, L. (2019). ASKAP commissioning observations of the GAMA 23 field. Publications / Astronomical Society of Australia, 36, https://doi.org/10.1017/pasa.2019.16

© Astronomical Society of Australia 2019. We have observed the G23 field of the Galaxy AndMass Assembly (GAMA) survey using the Australian Square Kilometre Array Pathfinder (ASKAP) in its commissioning phase to validate the performance of the telesco... Read More about ASKAP commissioning observations of the GAMA 23 field.

Galactic chemical evolution of radioactive isotopes (2019)
Journal Article
Côté, B., Lugaro, M., Reifarth, R., Pignatari, M., Világos, B., Yagüe, A., & Gibson, B. K. (2019). Galactic chemical evolution of radioactive isotopes. The Astrophysical journal, 878(2), https://doi.org/10.3847/1538-4357/ab21d1

The presence of short-lived (∼ Myr) radioactive isotopes in meteoritic inclusions at the time of their formation represents a unique opportunity to study the circumstances that led to the formation of the Solar System. To interpret these observations... Read More about Galactic chemical evolution of radioactive isotopes.

The effect of minor and major mergers on the evolution of low excitation radio galaxies (2019)
Journal Article
Gordon, Y. A., Pimbblet, K. A., Kaviraj, S., Owers, M. S., O'Dea, C. P., Walmsley, M., …Pierce, J. C. (2019). The effect of minor and major mergers on the evolution of low excitation radio galaxies. The Astrophysical journal, 878(2), https://doi.org/10.3847/1538-4357/ab203f

We use deep, μ r lesssim 28 mag arcsec−2, r-band imaging from the Dark Energy Camera Legacy Survey to search for past, or ongoing, merger activity in a sample of 282 low-excitation radio galaxies (LERGs) at z < 0.07. Our principal aim is to assess t... Read More about The effect of minor and major mergers on the evolution of low excitation radio galaxies.

Percolation threshold enables optical resistive‐memory switching and light‐tuneable synaptic learning in segregated nanocomposites (2019)
Journal Article
Jaafar, A. H., O'Neill, M., Kelly, S. M., Verrelli, E., & Kemp, N. T. (2019). Percolation threshold enables optical resistive‐memory switching and light‐tuneable synaptic learning in segregated nanocomposites. Advanced Electronic Materials, 5(7), https://doi.org/10.1002/aelm.201900197

An optical memristor where the electrical resistance memory depends on the history of both the current flowing through the device and the irradiance of incident light onto it is demonstrated. It is based on a nanocomposite consisting of functionalize... Read More about Percolation threshold enables optical resistive‐memory switching and light‐tuneable synaptic learning in segregated nanocomposites.

Using failed supernovae to constrain the Galactic r-process element production (2019)
Journal Article
Wehmeyer, B., Wehmeyer, B., Fröhlich, C., Fröhlich, C., Côté, B., Côté, B., …Thielemann, F. K. (2019). Using failed supernovae to constrain the Galactic r-process element production. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 487(2), 1745-1753. https://doi.org/10.1093/mnras/stz1310

Rapid neutron capture process (r-process) elements have been detected in a large fraction of metal-poor halo stars, with abundances relative to iron (Fe) that vary by over two orders of magnitude. This scatter is reduced to less than a factor of 3 in... Read More about Using failed supernovae to constrain the Galactic r-process element production.

Probing the molecular orientation of a single conjugated polymer via nano-gap SERS (2019)
Journal Article
Marshall, A. R. L., Roberts, M., Gierschner, J., Bouillard, J. G., & Adawi, A. M. (2019). Probing the molecular orientation of a single conjugated polymer via nano-gap SERS. ACS applied polymer materials, 1(5), 1175-1180. https://doi.org/10.1021/acsapm.9b00180

Determining the molecular orientation at the single molecule level is of key importance for a wide range of applica-tions ranging from molecular electronic devices to biomedical applications. In this work Surface-Enhanced Raman Scattering (SERS) was... Read More about Probing the molecular orientation of a single conjugated polymer via nano-gap SERS.

The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo (2019)
Journal Article
Wyse, R. F., Sakari, C. M., Roederer, I. U., Placco, V. M., Beers, T. C., Ezzeddine, R., …Watson, F. (2019). The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo. The Astrophysical journal, 874(2), https://doi.org/10.3847/1538-4357/ab0c02

A new moderately r-process-enhanced metal-poor star, RAVE J093730.5−062655, has been identified in the Milky Way halo as part of an ongoing survey by the R-Process Alliance. The temperature and surface gravity indicate that J0937−0626 is likely a hor... Read More about The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo.

Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster – a post-merger scenario (2019)
Journal Article
Lyskova, N., Churazov, E., Zhang, C., Forman, W., Jones, C., Dolag, K., …Sheardown, A. (2019). Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster – a post-merger scenario. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 485(2), 2922-2934. https://doi.org/10.1093/mnras/stz597

We study a merger of the NGC 4839 group with the Coma cluster using X-ray observations from the XMM–Newton and Chandra telescopes. X-ray data show two prominent features: (i) a long (∼600 kpc in projection) and bent tail of cool gas trailing (towards... Read More about Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster – a post-merger scenario.

Enrichment of the Galactic disc with neutron capture elements: Sr (2019)
Journal Article
Mishenina, T., Pignatari, M., Gorbaneva, T., Bisterzo, S., Travaglio, C., Thielemann, F. K., & Soubiran, C. (2019). Enrichment of the Galactic disc with neutron capture elements: Sr. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 484(3), 3846-3864. https://doi.org/10.1093/mnras/stz178

The enrichment history of heavy neutron-capture elements in the Milky Way disc provides fundamental information about the chemical evolution of our Galaxy and about the stellar sources that made those elements. In this work we give new observational... Read More about Enrichment of the Galactic disc with neutron capture elements: Sr.

Nucleosynthetic yields from neutron stars accreting in binary common envelopes (2019)
Journal Article
Keegans, J. D., Fryer, C. L., Jones, S. W., Côté, B., Belczynski, K., Herwig, F., …Diget, C. A. (2019). Nucleosynthetic yields from neutron stars accreting in binary common envelopes. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 485(1), 620-639. https://doi.org/10.1093/mnras/stz368

© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. Massive-star binaries can undergo a phase where one of the two stars expands during its advanced evolutionary stage as a giant and envelops its com... Read More about Nucleosynthetic yields from neutron stars accreting in binary common envelopes.

Remnants and ejecta of thermonuclear electron-capture supernovae: Constraining oxygen-neon deflagrations in high-density white dwarfs (2018)
Journal Article
Jones, S., Röpke, F. K., Fryer, C., Ruiter, A. J., Seitenzahl, I. R., Nittler, L. R., …Belczynski, K. (2019). Remnants and ejecta of thermonuclear electron-capture supernovae: Constraining oxygen-neon deflagrations in high-density white dwarfs. Astronomy and Astrophysics, 622, https://doi.org/10.1051/0004-6361/201834381

The explosion mechanism of electron-capture supernovae (ECSNe) remains equivocal: it is not completely clear whether these events are implosions in which neutron stars are formed, or incomplete thermonuclear explosions that leave behind bound ONeFe w... Read More about Remnants and ejecta of thermonuclear electron-capture supernovae: Constraining oxygen-neon deflagrations in high-density white dwarfs.

The time evolution of the Milky Way's oxygen abundance gradient (2018)
Journal Article
Costa, R. D., Díaz, I., Mollá, M., Díaz, Á. I., Cavichia, O., Gibson, B. K., …Few, C. G. (2019). The time evolution of the Milky Way's oxygen abundance gradient. Monthly notices of the Royal Astronomical Society, 482(3), 3071-3088. https://doi.org/10.1093/mnras/sty2877

© 2018 The Author(s). We study the evolution of oxygen abundance radial gradients as a function of time for the Milky Way Galaxy obtained with our MulChem chemical evolution model. We review the recent data of abundances for different objects observe... Read More about The time evolution of the Milky Way's oxygen abundance gradient.

an overview of the MHONGOOSE survey: Observing nearby galaxies with MeerKAT (2018)
Journal Article
Smith, M. W., Oh, S. H., Klöckner, H. R., Blyth, S. L., Adams, E. A., de Blok, W. J., …Zijlstra, A. (2018). an overview of the MHONGOOSE survey: Observing nearby galaxies with MeerKAT. Proceedings of Science, 277, https://doi.org/10.22323/1.277.0007

© Copyright owned by the author(s). MHONGOOSE is a deep survey of the neutral hydrogen distribution in a representative sample of 30 nearby disk and dwarf galaxies with H I masses from ∼ 106 to ∼ 1011 M, and luminosities from MR ∼ 12 to MR ∼ −22. The... Read More about an overview of the MHONGOOSE survey: Observing nearby galaxies with MeerKAT.

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.

Deep Chandra observation and numerical studies of the nearest cluster cold front in the sky (2015)
Journal Article
Werner, N., ZuHone, J. A., Zhuravleva, I., Ichinohe, Y., Simionescu, A., Allen, S. W., …Sanders, J. S. (2016). Deep Chandra observation and numerical studies of the nearest cluster cold front in the sky. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 455(1), 846-858. https://doi.org/10.1093/mnras/stv2358

We present the results of a very deep (500 ks) Chandra observation, along with tailored numerical simulations, of the nearest, best resolved cluster cold front in the sky, which lies 90 kpc (19 arcmin) to the north-west of M 87. The northern part of... Read More about Deep Chandra observation and numerical studies of the nearest cluster cold front in the sky.

Galactic evolution of rapid neutron capture process abundances: The inhomogeneous approach (2015)
Journal Article
Wehmeyer, B., Pignatari, M., & Thielemann, F. (2015). Galactic evolution of rapid neutron capture process abundances: The inhomogeneous approach. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 452(2), 1970-1981. https://doi.org/10.1093/mnras/stv1352

For the origin of heavy r-process elements, different sources have been proposed, e.g., core-collapse supernovae or neutron star mergers. Old metal-poor stars carry the signature of the astrophysical source(s). Among the elements dominantly made by t... Read More about Galactic evolution of rapid neutron capture process abundances: The inhomogeneous approach.

Code dependencies of pre-supernova evolution and nucleosynthesis in massive stars: Evolution to the end of core helium burning (2015)
Journal Article
Jones, S., Hirschi, R., Pignatari, M., Heger, A., Georgy, C., Nishimura, N., …Herwig, F. (2015). Code dependencies of pre-supernova evolution and nucleosynthesis in massive stars: Evolution to the end of core helium burning. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 447(4), 3115-3129. https://doi.org/10.1093/mnras/stu2657

Massive stars are key sources of radiative, kinetic and chemical feedback in the Universe. Grids of massive star models computed by different groups each using their own codes, input physics choices and numerical approximations, however, lead to inco... Read More about Code dependencies of pre-supernova evolution and nucleosynthesis in massive stars: Evolution to the end of core helium burning.

The clustering and halo masses of star-forming galaxies at z<1 (2014)
Journal Article
Dolley, T., Brown, M. J. I., Weiner, B. J., Brodwin, M., Kochanek, C. S., Pimbblet, K. A., …Beare, R. (2014). The clustering and halo masses of star-forming galaxies at z<1. The Astrophysical journal, 797(2), https://doi.org/10.1088/0004-637X/797/2/125

We present clustering measurements and halo masses of star-forming galaxies at 0.2 < z < 1.0. After excluding active galactic nuclei (AGNs), we construct a sample of 22,553 24 μm sources selected from 8.42 deg2 of the Spitzer MIPS AGN and Galax... Read More about The clustering and halo masses of star-forming galaxies at z<1.

The rarity of star formation in brightest cluster galaxies as measured by WISE (2014)
Journal Article
Fraser-McKelvie, A., Brown, M. J. I., & Pimbblet, K. A. (2014). The rarity of star formation in brightest cluster galaxies as measured by WISE. Monthly notices of the Royal Astronomical Society. Letters, 444(1), L63-L67. https://doi.org/10.1093/mnrasl/slu117

We present the mid-infrared star formation rates of 245 X-ray selected, nearby (z < 0.1) brightest cluster galaxies (BCGs). A homogeneous and volume limited sample of BCGs was created by X-ray selecting clusters with Lx > 1 × 1044 erg s⁻ ¹. The Wi... Read More about The rarity of star formation in brightest cluster galaxies as measured by WISE.

MaGICC baryon cycle: The enrichment history of simulated disc galaxies (2014)
Journal Article
Brook, C. B., Stinson, G., Gibson, B. K., Shen, S., Macciò, A. V., Obreja, A., …Quinn, T. (2014). MaGICC baryon cycle: The enrichment history of simulated disc galaxies. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 443(4), 3809-3818. https://doi.org/10.1093/mnras/stu1406

Using cosmological galaxy formation simulations from the MaGICC (Making Galaxies in a Cosmological Context) project, spanning stellar mass from ∼107 to 3 × 1010 M⊙, we trace the baryonic cycle of infalling gas from the virial radius through to its ev... Read More about MaGICC baryon cycle: The enrichment history of simulated disc galaxies.