All Outputs (756)

Coherent control in quantum transport: Amplification, filtering and switching at finite bias (2017)
Journal Article
Thethi, R., & Emary, C. (2017). Coherent control in quantum transport: Amplification, filtering and switching at finite bias. Quantum Science and Technology, 2(2), 024011. https://doi.org/10.1088/2058-9565/aa72c8

We consider coherent feedback control of quantum transport and focus on the application of simple controllers and the effects of a finite bias voltage. We show that simple single-parameter controllers can give rise to a range of useful effects such a... Read More about Coherent control in quantum transport: Amplification, filtering and switching at finite bias.

Iron and nickel isotope compositions of presolar silicon carbide grains from supernovae (2017)
Journal Article
Kodolányi, J., Stephan, T., Trappitsch, R., Hoppe, P., Pignatari, M., Davis, A. M., & Pellin, M. J. (2018). Iron and nickel isotope compositions of presolar silicon carbide grains from supernovae. Geochimica et cosmochimica acta, 221, 127-144. https://doi.org/10.1016/j.gca.2017.05.029

© 2017 Elsevier Ltd. We report the carbon, silicon, iron, and nickel isotope compositions of twenty-five presolar SiC grains of mostly supernova (SN) origin. The iron and nickel isotope compositions were measured with the new Chicago Instrument for L... Read More about Iron and nickel isotope compositions of presolar silicon carbide grains from supernovae.

Optical diagnostics of laser-produced aluminium plasmas under water (2017)
Journal Article
Walsh, N., Costello, J. T., & Kelly, T. J. (2017). Optical diagnostics of laser-produced aluminium plasmas under water. Applied physics. B, Lasers and optics, 123(6), Article 179. https://doi.org/10.1007/s00340-017-6754-3

We report on the findings of double-pulse studies performed on an aluminium target submerged in water using Nd:YAG laser pulses. Shadowgraphy measurements were performed to examine the dynamic behaviour of the cavitation bubble that eventually forms... Read More about Optical diagnostics of laser-produced aluminium plasmas under water.

Periodic dispersion-corrected approach for isolation spectroscopy of N2 in an argon environment: Clusters, surfaces, and matrices (2017)
Journal Article
Makina, Y., Mahjoubi, K., Benoit, D. M., Jaidane, N.-E., Al-Mogren, M. M., & Hochlaf, M. (2017). Periodic dispersion-corrected approach for isolation spectroscopy of N2 in an argon environment: Clusters, surfaces, and matrices. The journal of physical chemistry. A, 121(21), 4093-4102. https://doi.org/10.1021/acs.jpca.7b00093

© 2017 American Chemical Society. Ab initio and Perdew, Burke, and Ernzerhof (PBE) density functional theory with dispersion correction (PBE-D3) calculations are performed to study N 2 -Ar n (n ≤ 3) complexes and N 2 trapped in Ar matrix (i.e., N 2 @... Read More about Periodic dispersion-corrected approach for isolation spectroscopy of N2 in an argon environment: Clusters, surfaces, and matrices.

On a role of quadruple component of magnetic field in defining solar activity in grand cycles (2017)
Journal Article
Popova, E., Zharkova, V., Shepherd, S., & Zharkov, S. (2018). On a role of quadruple component of magnetic field in defining solar activity in grand cycles. Journal of atmospheric and solar-terrestrial physics, 176, 61-68. https://doi.org/10.1016/j.jastp.2017.05.006

In this paper we revise our prediction of solar activity using a solar background magnetic field as a proxy by the inclusion of eigen vectors of solar magnetic waves produced by quadruple magnetic sources, in addition to the principal eigen modes gen... Read More about On a role of quadruple component of magnetic field in defining solar activity in grand cycles.

Observing the metal-poor solar neighbourhood: A comparison of galactic chemical evolution predictions (2017)
Journal Article
Mishenina, T., Pignatari, M., Côté, B., Thielemann, F.-K., Soubiran, C., Basak, N., Gorbaneva, T., Korotin, S. A., Kovtyukh, V. V., Wehmeyer, B., Bisterzo, S., Travaglio, C., Gibson, B. K., Jordan, C., Paul, A., Ritter, C., & Herwig, F. (2017). Observing the metal-poor solar neighbourhood: A comparison of galactic chemical evolution predictions. Monthly notices of the Royal Astronomical Society. Letters, 469(4), 4378-4399. https://doi.org/10.1093/mnras/stx1145

© 2017 The Authors. Atmospheric parameters and chemical compositions for 10 stars with metallicities in the region of -2.2 < [Fe/H] < -0.6 were precisely determined using high-resolution, high signal-tonoise, spectra. For each star, the abundance... Read More about Observing the metal-poor solar neighbourhood: A comparison of galactic chemical evolution predictions.

Galaxy And Mass Assembly: search for a population of high-entropy galaxy groups (2017)
Journal Article
Pearson, R. J., Ponman, T. J., Norberg, P., Robotham, A. S., Babul, A., Bower, R. G., McCarthy, I. G., Brough, S., Driver, S. P., & Pimbblet, K. (2017). Galaxy And Mass Assembly: search for a population of high-entropy galaxy groups. Monthly notices of the Royal Astronomical Society, 469(3), 3489-3504. https://doi.org/10.1093/mnras/stx1081

Observations with the ChandraX-ray Observatory are used to examine the hot gas properties within a sample of 10 galaxy groups selected from the Galaxy And Mass Assembly survey's optical Friends-of-Friends group catalogue. Our groups have been screene... Read More about Galaxy And Mass Assembly: search for a population of high-entropy galaxy groups.

The RAVE-on Catalog of Stellar Atmospheric Parameters and Chemical Abundances for Chemo-dynamic Studies in the Gaia Era (2017)
Journal Article
Casey, A. R., Hawkins, K., Hogg, D. W., Ness, M., Rix, H. W., Kordopatis, G., Kunder, A., Steinmetz, M., Koposov, S., Enke, H., Sanders, J., Gilmore, G., Zwitter, T., Freeman, K. C., Casagrande, L., Matijevič, G., Seabroke, G., Bienaymé, O., Bland-Hawthorn, J., Gibson, B. K., …Wyse, R. (2017). The RAVE-on Catalog of Stellar Atmospheric Parameters and Chemical Abundances for Chemo-dynamic Studies in the Gaia Era. The Astrophysical journal, 840(1), 59. https://doi.org/10.3847/1538-4357/aa69c2

The orbits, atmospheric parameters, chemical abundances, and ages of individual stars in the Milky Way provide the most comprehensive illustration of galaxy formation available. The Tycho-Gaia Astrometric Solution (TGAS) will deliver astrometric para... Read More about The RAVE-on Catalog of Stellar Atmospheric Parameters and Chemical Abundances for Chemo-dynamic Studies in the Gaia Era.

Asymmetric metallicity patterns in the stellar velocity space with RAVE (2017)
Journal Article
Antoja, T., Kordopatis, G., Helmi, A., Monari, G., Famaey, B., Wyse, R. F. G., Grebel, E. K., Steinmetz, M., Bland-Hawthorn, J., Gibson, B. K., Bienaymé, O., Navarro, J. F., Parker, Q. A., Reid, W., Seabroke, G., Siebert, A., Siviero, A., & Zwitter, T. (2017). Asymmetric metallicity patterns in the stellar velocity space with RAVE. Astronomy and Astrophysics, 601, A59. https://doi.org/10.1051/0004-6361/201629387

© ESO, 2017. Context. The chemical abundances of stars encode information on their place and time of origin. Stars formed together in e.g. a cluster, should present chemical homogeneity. Also disk stars influenced by the effects of the bar and the sp... Read More about Asymmetric metallicity patterns in the stellar velocity space with RAVE.

Molecular gas dominated 50 kpc ram pressure stripped tail of the Coma galaxy D100 (2017)
Journal Article
Jáchym, P., Sun, M., Kenney, J. D. P., Cortese, L., Combes, F., Yagi, M., Yoshida, M., Palouš, J., & Roediger, E. (2017). Molecular gas dominated 50 kpc ram pressure stripped tail of the Coma galaxy D100. The Astrophysical journal, 839(2), 114. https://doi.org/10.3847/1538-4357/aa6af5

We have discovered large amounts of molecular gas, as traced by CO emission, in the ram pressure stripped gas tail of the Coma cluster galaxy D100 (GMP 2910), out to large distances of about 50 kpc. D100 has a 60 kpc long, strikingly narrow tail whic... Read More about Molecular gas dominated 50 kpc ram pressure stripped tail of the Coma galaxy D100.

Substrate Induced Strain Field in FeRh Epilayers Grown on Single Crystal MgO (001) Substrates (2017)
Journal Article
Barton, C. W., Ostler, T. A., Huskisson, D., Kinane, C. J., Haigh, S. J., Hrkac, G., & Thomson, T. (2017). Substrate Induced Strain Field in FeRh Epilayers Grown on Single Crystal MgO (001) Substrates. Scientific reports, 7, Article 44397. https://doi.org/10.1038/srep44397

Equi-Atomic FeRh is highly unusual in that it undergoes a first order meta-magnetic phase transition from an antiferromagnet to a ferromagnet above room temperature (T r â ‰ 370 K). This behavior opens new possibilities for creating multifunctional m... Read More about Substrate Induced Strain Field in FeRh Epilayers Grown on Single Crystal MgO (001) Substrates.

A RAVE investigation on Galactic open clusters: II. Open cluster pairs, groups and complexes (2017)
Journal Article
Conrad, C., Scholz, R.-D., Kharchenko, N. V., Piskunov, A. E., Röser, S., Schilbach, E., De Jong, R. S., Schnurr, O., Steinmetz, M., Grebel, E. K., Zwitter, T., Bienaymé, O., Bland-Hawthorn, J., Gibson, B. K., Gilmore, G., Kordopatis, G., Kunder, A., Navarro, J. F., Parker, Q., Reid, W., …Wyse, R. (2017). A RAVE investigation on Galactic open clusters: II. Open cluster pairs, groups and complexes. Astronomy and Astrophysics, 600, A106. https://doi.org/10.1051/0004-6361/201630012

© ESO, 2017. Context. It is generally agreed upon that stars form in open clusters (OCs) and stellar associations, but little is known about structures in the Galactic OC population; whether OCs and stellar associations are born isolated or if they p... Read More about A RAVE investigation on Galactic open clusters: II. Open cluster pairs, groups and complexes.

RAVE stars in K2: I. Improving RAVE red giants spectroscopy using asteroseismology from K2 Campaign 1 (2017)
Journal Article
Valentini, M., Chiappini, C., Davies, G. R., Elsworth, Y. P., Mosser, B., Lund, M. N., Miglio, A., Chaplin, W. J., Rodrigues, T. S., Boeche, C., Steinmetz, M., Matijevič, G., Kordopatis, G., Bland-Hawthorn, J., Munari, U., Bienaymé, O., Freeman, K. C., Gibson, B. K., Gilmore, G., Grebel, E. K., …Mott, A. (2017). RAVE stars in K2: I. Improving RAVE red giants spectroscopy using asteroseismology from K2 Campaign 1. Astronomy and Astrophysics, 600, A66. https://doi.org/10.1051/0004-6361/201629701

© 2017 ESO. We present a set of 87 RAVE stars with detected solar like oscillations, observed during Campaign 1 of the K2 mission (RAVE K2-C1 sample). This data set provides a useful benchmark for testing the gravities provided in RAVE data release 4... Read More about RAVE stars in K2: I. Improving RAVE red giants spectroscopy using asteroseismology from K2 Campaign 1.

On the abundance of extreme voids II : a survey of void mass functions (2017)
Journal Article
Chongchitnan, S., & Hunt, M. (2017). On the abundance of extreme voids II : a survey of void mass functions. Journal of cosmology and astroparticle physics, 2017(03), Article 049. https://doi.org/10.1088/1475-7516/2017/03/049

The abundance of cosmic voids can be described by an analogue of halo mass functions for galaxy clusters. In this work, we explore a number of void mass functions: from those based on excursion-set theory to new mass functions obtained by modifying h... Read More about On the abundance of extreme voids II : a survey of void mass functions.

Novel liquid crystalline organic semiconducting oligomers incorporating N-heterocyclic carbazole moieties for fluorescent OLEDs (2017)
Journal Article
Hu, G., Kitney, S. P., Kelly, S. M., Harrison, W., & O’Neill, M. (2017). Novel liquid crystalline organic semiconducting oligomers incorporating N-heterocyclic carbazole moieties for fluorescent OLEDs. Liquid crystals, 44(11), 1632-1645. https://doi.org/10.1080/02678292.2017.1306633

A novel class of nematic liquid crystalline organic semiconducting oligomers incorporating N-heterocyclic carbazole moieties has been synthesised using simple and highly efficient reaction pathways. The electroluminescent colour of these novel oligom... Read More about Novel liquid crystalline organic semiconducting oligomers incorporating N-heterocyclic carbazole moieties for fluorescent OLEDs.

Erratum to: Atomic “bomb testing”: the Elitzur–Vaidman experiment violates the Leggett–Garg inequality (2017)
Journal Article
Robens, C., Alt, W., Emary, C., Meschede, D., & Alberti, A. (2017). Erratum to: Atomic “bomb testing”: the Elitzur–Vaidman experiment violates the Leggett–Garg inequality. Applied physics. B, Lasers and optics, 123(4), 98. https://doi.org/10.1007/s00340-017-6639-5

© 2017, The Author(s). In the original version of the article, the shaded band in Fig. 3 representing the theoretical model was omitted. The original article has been revised to provide the correct figure (Fig. 3), which is also shown below. (Figure... Read More about Erratum to: Atomic “bomb testing”: the Elitzur–Vaidman experiment violates the Leggett–Garg inequality.

The selection function of the RAVE survey (2017)
Journal Article
Wojno, J., Kordopatis, G., Piffl, T., Binney, J., Steinmetz, M., Matijevič, G., Bland-Hawthorn, J., Sharma, S., McMillan, P., Watson, F., Reid, W., Kunder, A., Enke, H., Grebel, E. K., Seabroke, G., Wyse, R. F. G., Zwitter, T., Bienaymé, O., Freeman, K. C., Gibson, B. K., …Siebert, A. (2017). The selection function of the RAVE survey. Monthly notices of the Royal Astronomical Society, 468(3), 3368-3380. https://doi.org/10.1093/mnras/stx606

We characterize the selection function of RAdial Velocity Experiment (RAVE) using 2 Micron All Sky Survey (2MASS) as our underlying population, which we assume represents all stars that could have potentially been observed.We evaluate the completenes... Read More about The selection function of the RAVE survey.

A chemical signature from fast-rotating low-metallicity massive stars: ROA 276 in ω Centauri (2017)
Journal Article
Yong, D., Norris, J. E., Da Costa, G. S., Stanford, L. M., Karakas, A. I., Shingles, L. J., Hirschi, R., & Pignatari, M. (2017). A chemical signature from fast-rotating low-metallicity massive stars: ROA 276 in ω Centauri. The Astrophysical journal, 837(2), 176. https://doi.org/10.3847/1538-4357/aa6250

© 2017. The American Astronomical Society. All rights reserved. We present a chemical abundance analysis of a metal-poor star, ROA 276, in the stellar system ω Centauri. We confirm that this star has an unusually high [Sr/Ba] abundance ratio. Additio... Read More about A chemical signature from fast-rotating low-metallicity massive stars: ROA 276 in ω Centauri.

On the high-pressure phase stability and elastic properties of β-titanium alloys (2017)
Journal Article
Smith, D., Joris, O. P. J., Sankaran, A., Weekes, H. E., Bull, D. J., Dye, D., Errandonea, D., Smith, D., Joris, O. P. J., Sankaran, A., Weekes, H. E., Bull, D. J., Prior, T. J., Dye, D., Errandonea, D., & Proctor, J. E. (2017). On the high-pressure phase stability and elastic properties of β-titanium alloys. Journal of Physics: Condensed Matter, 29(15), 155401. https://doi.org/10.1088/1361-648x/aa60b6

We have studied the compressibility and stability of different β-titanium alloys at high pressure, including binary Ti-Mo, Ti-24Nb-4Zr-8Sn (Ti2448) and Ti-36Nb-2Ta-0.3O (gum metal). We observed stability of the β phase in these alloys to 40 GPa, well... Read More about On the high-pressure phase stability and elastic properties of β-titanium alloys.

New analytical solutions for chemical evolution models: characterizing the population of star-forming and passive galaxies (2017)
Journal Article
Spitoni, E., Vincenzo, F., & Matteucci, F. (2017). New analytical solutions for chemical evolution models: characterizing the population of star-forming and passive galaxies. Astronomy and Astrophysics, 599, Article A6. https://doi.org/10.1051/0004-6361/201629745

Context. Analytical models of chemical evolution, including inflow and outflow of gas, are important tools for studying how the metal content in galaxies evolves as a function of time.
Aims. We present new analytical solutions for the evolution of t... Read More about New analytical solutions for chemical evolution models: characterizing the population of star-forming and passive galaxies.