All Outputs (756)

Some noteworthy alternating trilinear forms (2013)
Journal Article
Draisma, J., & Shaw, R. (2014). Some noteworthy alternating trilinear forms. Journal of Geometry, 105(1), 167-176. https://doi.org/10.1007/s00022-013-0202-2

Given an alternating trilinear form T ∈ Alt(×3Vn) on Vn =V(n,F) let LT denote the set of T-singular lines in PG(n-1)=PVn, consisting that is of those lines 〈a,b〉 of PG(n-1) such that T(a, b, x) = 0 for all x ∈ Vn. Amongst the immense profusion of d... Read More about Some noteworthy alternating trilinear forms.

Leggett-Garg inequalities (2013)
Journal Article
Emary, C., Lambert, N., & Nori, F. (2014). Leggett-Garg inequalities. Reports on progress in physics, 77(1), Article 016001. https://doi.org/10.1088/0034-4885/77/1/016001

In contrast to the spatial Bell’s inequalities which probe entanglement between spatially-separated systems, the Leggett-Garg inequalities test the correlations of a single system measured at different times. Violation of a genuine Leggett-Garg test... Read More about Leggett-Garg inequalities.

Numerical simulations of bubble-induced star formation in dwarf irregular galaxies with a novel stellar feedback scheme (2013)
Journal Article
Kawata, D., Gibson, B. K., Barnes, D. J., Grand, R. J., & Rahimi, A. (2014). Numerical simulations of bubble-induced star formation in dwarf irregular galaxies with a novel stellar feedback scheme. Monthly notices of the Royal Astronomical Society, 438(2), 1208-1222. https://doi.org/10.1093/mnras/stt2267

To study the star formation and feedback mechanism, we simulate the evolution of an isolated dwarf irregular galaxy (dIrr) in a fixed dark matter halo, similar in size to Wolf–Lundmark–Melotte, using a new stellar feedback scheme. We use the new vers... Read More about Numerical simulations of bubble-induced star formation in dwarf irregular galaxies with a novel stellar feedback scheme.

Galaxy and mass assembly (GAMA): The large-scale structure of galaxies and comparison to mock universes (2013)
Journal Article
Alpaslan, M., Robotham, A. S. G., Driver, S., Norberg, P., Baldry, I., Bauer, A. E., Bland-Hawthorn, J., Brown, M., Cluver, M., Colless, M., Foster, C., Hopkins, A., Van kampen, E., Kelvin, L., Lara-Lopez, M. A., Liske, J., Lopez-Sanchez, A. R., Loveday, J., Mcnaught-Roberts, T., Merson, A., & Pimbblet, K. (2014). Galaxy and mass assembly (GAMA): The large-scale structure of galaxies and comparison to mock universes. Monthly notices of the Royal Astronomical Society, 438(1), 177-194. https://doi.org/10.1093/mnras/stt2136

From a volume-limited sample of 45 542 galaxies and 6000 groups with z ≤ 0.213, we use an adapted minimal spanning tree algorithm to identify and classify large-scale structures within the Galaxy And Mass Assembly (GAMA) survey. Using galaxy groups,... Read More about Galaxy and mass assembly (GAMA): The large-scale structure of galaxies and comparison to mock universes.

Phase mixing due to the Galactic potential: steps in the position and velocity distributions of popped star clusters (2013)
Journal Article
Candlish, G. N., Smith, R., Fellhauer, M., Gibson, B. K., Kroupa, P., & Assmann, P. (2014). Phase mixing due to the Galactic potential: steps in the position and velocity distributions of popped star clusters. Monthly notices of the Royal Astronomical Society, 437(4), 3702-3717. https://doi.org/10.1093/mnras/stt2166

As star clusters are expected to form with low star formation efficiencies, the gas in the cluster is expelled quickly and early in their development: the star cluster ‘pops’. This leads to an unbound stellar system, evolving in the Galactic potentia... Read More about Phase mixing due to the Galactic potential: steps in the position and velocity distributions of popped star clusters.

A fragment method for systematic improvement of anharmonic adsorbate vibrational frequencies: Acetylene on Cu(001) (2013)
Journal Article
Chulkov, S. K., & Benoit, D. M. (2013). A fragment method for systematic improvement of anharmonic adsorbate vibrational frequencies: Acetylene on Cu(001). The Journal of chemical physics, 139(21), Article 214704. https://doi.org/10.1063/1.4829461

We suggest a novel method for systematic improvement of anharmonic adsorbate frequencies based on a fragment approach. The calculations are carried out by considering the adsorbed molecule separately and computing an energy correction using high-leve... Read More about A fragment method for systematic improvement of anharmonic adsorbate vibrational frequencies: Acetylene on Cu(001).

Angular distribution in the neutron-induced fission of actinides (2013)
Journal Article
Leong, L., Tassan-Got, L., Tarrio, D., Audouin, L., Paradela, C., Duran, I., Le Naour, C., Altstadt, S., Andrzejewsky, J., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calvino, F., Calviani, M., …González, R. (2013). Angular distribution in the neutron-induced fission of actinides. EPJ Web of Conferences, 62, 08003. https://doi.org/10.1051/epjconf/20136208003

Above 1 MeV of incident neutron energy the fission fragment angular distribution (FFAD) has generally a strong anisotropic behavior due to the combination of the incident orbital momentum and the intrinsic spin of the fissioning nucleus. This effect... Read More about Angular distribution in the neutron-induced fission of actinides.

Measurement of the MACS of Ta 181 (n, γ) at kT=30 keV as a test of a method for Maxwellian neutron spectra generation (2013)
Journal Article
Praena, J., Mastinu, P., Pignatari, M., Quesada, J., García-López, J., Lozano, M., Dzysiuk, N., Capote, R., & Martín-Hernández, G. (2013). Measurement of the MACS of Ta 181 (n, γ) at kT=30 keV as a test of a method for Maxwellian neutron spectra generation. Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 727, 1-6. https://doi.org/10.1016/j.nima.2013.05.151

Measurement of the Maxwellian-Averaged Cross-Section (MACS) of the Ta(n,γ)181 reaction at kT=30 keV by the activation technique using an innovative method for the generation of Maxwellian neutron spectra is presented. The method is based on the shapi... Read More about Measurement of the MACS of Ta 181 (n, γ) at kT=30 keV as a test of a method for Maxwellian neutron spectra generation.

Environments and morphologies of red sequence galaxies with residual star formation in massive clusters (2013)
Journal Article
Crossett, J. P., Pimbblet, K. A., Stott, J. P., & Jones, D. H. (2014). Environments and morphologies of red sequence galaxies with residual star formation in massive clusters. Monthly notices of the Royal Astronomical Society, 437(3), 2521-2530. https://doi.org/10.1093/mnras/stt2065

We present a photometric investigation into recent star formation in galaxy clusters at z ∼ 0.1. We use spectral energy distribution templates to quantify recent star formation in large Xray-selected clusters from the LARCS survey using matched GALEX... Read More about Environments and morphologies of red sequence galaxies with residual star formation in massive clusters.

Phase mixing of popped star clusters (2013)
Presentation / Conference Contribution
Candlish, G. N., Smith, R., Fellhauer, M., Gibson, B. K., Kroupa, P., & Assmann, P. (2013, November). Phase mixing of popped star clusters. Presented at XIV Latin American Regional IAU Meeting

As star clusters are expected to form with low star formation efficiencies, the gas in the cluster is expelled quickly and early in their development: the star cluster pops. This leads to an unbound stellar system. Previous N-body simulations have de... Read More about Phase mixing of popped star clusters.

Water-in-water emulsions based on incompatible polymers and stabilized by triblock copolymers-templated polymersomes (2013)
Journal Article
Buzza, D. M. A., Fletcher, P. D. I., Georgiou, T. K., & Ghasdian, N. (2013). Water-in-water emulsions based on incompatible polymers and stabilized by triblock copolymers-templated polymersomes. Langmuir : the ACS journal of surfaces and colloids, 29(48), 14804-14814. https://doi.org/10.1021/la403356j

Aqueous solutions containing a mixture of polyethylene glycol (PEG) and dextran homopolymers form an aqueous two-phase system which can be emulsified to give a water-in-water emulsion. We show how these emulsions can be stabilized using triblock poly... Read More about Water-in-water emulsions based on incompatible polymers and stabilized by triblock copolymers-templated polymersomes.

Two-magnon bound state causes ultrafast thermally induced magnetisation switching (2013)
Journal Article
Barker, J., Atxitia, U., Hovorka, O., Ostler, T. A., Chubykalo-Fesenko, O., & Chantrell, R. W. (2013). Two-magnon bound state causes ultrafast thermally induced magnetisation switching. Scientific reports, 3, Article 3262. https://doi.org/10.1038/srep03262

There has been much interest recently in the discovery of thermally induced magnetisation switching using femtosecond laser excitation, where a ferrimagnetic system can be switched deterministically without an applied magnetic field. Experimental res... Read More about Two-magnon bound state causes ultrafast thermally induced magnetisation switching.

The [α/Fe] ratios of very metal-poor stars within the integrated galactic initial mass function theory (2013)
Journal Article
Recchi, S., Calura, F., Kroupa, P., & Gibson, B. K. (2014). The [α/Fe] ratios of very metal-poor stars within the integrated galactic initial mass function theory. Monthly notices of the Royal Astronomical Society, 437(1), 994-1008. https://doi.org/10.1093/mnras/stt1971

The aim of this paper is to quantify the amplitude of the predicted plateau in [α/Fe] ratios associated with the most metal-poor stars of a galaxy. We assume that the initial mass function (IMF) in galaxies is steeper if the star formation rate (SFR)... Read More about The [α/Fe] ratios of very metal-poor stars within the integrated galactic initial mass function theory.

Diffuse interstellar band at 8620 Å in RAVE : a new method for detecting the diffuse interstellar band in spectra of cool stars (2013)
Journal Article
Bland-Hawthorn, J., Kos, J., Zwitter, T., Grebel, E. K., Bienayme, O., Binney, J., Freeman, K. C., Gibson, B. K., Gilmore, G., Kordopatis, G., Navarro, J. F., Parker, Q., Reid, W. A., Seabroke, G., Siebert, A., Siviero, A., Steinmetz, M., Watson, F., & Wyse, R. F. G. (2013). Diffuse interstellar band at 8620 Å in RAVE : a new method for detecting the diffuse interstellar band in spectra of cool stars. The Astrophysical journal, 778(2), 86. https://doi.org/10.1088/0004-637x/778/2/86

Diffuse interstellar bands (DIBs) are usually observed in spectra of hot stars, where interstellar lines are rarely blended with stellar ones. The need for hot stars is a strong limitation in the number of sightlines we can observe and their distribu... Read More about Diffuse interstellar band at 8620 Å in RAVE : a new method for detecting the diffuse interstellar band in spectra of cool stars.

Relics of ancient post-AGB stars in a primitive meteorite (2013)
Journal Article
Jadhav, M., Pignatari, M., Herwig, F., Zinner, E., Gallino, R., & Huss, G. R. (2013). Relics of ancient post-AGB stars in a primitive meteorite. Astrophysical journal. Letters, 777(2), L27. https://doi.org/10.1088/2041-8205/777/2/l27

Graphite is one of the many presolar circumstellar condensate species found in primitive meteorites. While the isotopic compositions of low-density graphite grains indicate an origin in core-collapse supernovae, some high-density grains have extreme... Read More about Relics of ancient post-AGB stars in a primitive meteorite.

The narrow X-ray tail and double Hα tails of ESO 137-002 in A3627 (2013)
Journal Article
Zhang, B., Sun, M., Ji, L., Sarazin, C., Lin, X. B., Nulsen, P. E. J., Roediger, E., Donahue, M., Forman, W., Jones, C., Voit, G. M., & Kong, X. (2013). The narrow X-ray tail and double Hα tails of ESO 137-002 in A3627. The Astrophysical journal, 777(2), Article 122. https://doi.org/10.1088/0004-637x/777/2/122

We present the analysis of a deep Chandra observation of a ~2 L * late-type galaxy, ESO 137-002, in the closest rich cluster A3627. The Chandra data reveal a long (gsim40 kpc) and narrow tail with a nearly constant width (~3 kpc) to the southeast of... Read More about The narrow X-ray tail and double Hα tails of ESO 137-002 in A3627.

The radial velocity experiment (RAVE): Fourth data release (2013)
Journal Article
Kordopatis, G., Gilmore, G., Steinmetz, M., Boeche, C., Seabroke, G. M., Siebert, A., Zwitter, T., Binney, J., De Laverny, P., Recio-Blanco, A., Williams, M. E. K., Piffl, T., Enke, H., Roeser, S., Bijaoui, A., Wyse, R. F. G., Freeman, K., Munari, U., Carrillo, I., Anguiano, B., …Žerjal, M. (2013). The radial velocity experiment (RAVE): Fourth data release. Astronomical Journal, 146(5), 134. https://doi.org/10.1088/0004-6256/146/5/134

We present the stellar atmospheric parameters (effective temperature, surface gravity, overall metallicity), radial velocities, individual abundances, and distances determined for 425,561 stars, which constitute the fourth public data release of the... Read More about The radial velocity experiment (RAVE): Fourth data release.

In the thick of it: metal-poor disc stars in RAVE (2013)
Journal Article
Kordopatis, G., Gilmore, G., Wyse, R., Steinmetz, M., Siebert, A., Bienaymé, O., McMillan, P. J., Minchev, I., Zwitter, T., Gibson, B. K., Seabroke, G., Grebel, E. K., Bland-Hawthorn, J., Boeche, C., Freeman, K. C., Munari, U., Navarro, J. F., Parker, Q., Reid, W. A., & Siviero, A. (2013). In the thick of it: metal-poor disc stars in RAVE. Monthly notices of the Royal Astronomical Society, 436(4), 3231-3246. https://doi.org/10.1093/mnras/stt1804

By selecting in the Radial Velocity Experiment-fourth data release (RAVE-DR4) survey the stars located between 1 and 2 kpc above the Galactic plane, we question the consistency of the simplest three-component model (thin disc, thick disc and halo) fo... Read More about In the thick of it: metal-poor disc stars in RAVE.

Evidence for radiogenic sulfur-32 in type Ab presolar silicon carbide grains? (2013)
Journal Article
Fujiya, W., Hoppe, P., Zinner, E., Pignatari, M., & Herwig, F. (2013). Evidence for radiogenic sulfur-32 in type Ab presolar silicon carbide grains?. Astrophysical journal. Letters, 776(2), L29. https://doi.org/10.1088/2041-8205/776/2/l29

We report C, Si, and S isotope measurements on 34 presolar silicon carbide grains of Type AB, characterized by 12 C/ 13 C < 10. Nitrogen, Mg-Al-, and Ca-Ti-isotopic compositions were measured on a subset of these grains. Three grains show large 3... Read More about Evidence for radiogenic sulfur-32 in type Ab presolar silicon carbide grains?.

Viscous Kelvin-Helmholtz instabilities in highly ionised plasmas (2013)
Journal Article
Roediger, E., Kraft, R. P., Nulsen, P., Churazov, E., Forman, W., Brüggen, M., & Kokotanekova, R. (2013). Viscous Kelvin-Helmholtz instabilities in highly ionised plasmas. Monthly notices of the Royal Astronomical Society, 436(2), 1721-1740. https://doi.org/10.1093/mnras/stt1691

Transport coefficients in highly ionised plasmas like the intra-cluster medium (ICM) are still ill-constrained. They influence various processes, among them the mixing at shear flow interfaces due to the Kelvin-Helmholtz instability (KHI). The observ... Read More about Viscous Kelvin-Helmholtz instabilities in highly ionised plasmas.