All Outputs (84)

Convective–reactive nucleosynthesis of K, Sc, Cl and p-process isotopes in O–C shell mergers (2017)
Journal Article
Ritter, C., Andrassy, R., Côté, B., Herwig, F., Woodward, P. R., Pignatari, M., & Jones, S. (2018). Convective–reactive nucleosynthesis of K, Sc, Cl and p-process isotopes in O–C shell mergers. Monthly notices of the Royal Astronomical Society. Letters, 474(1), L1-L6. https://doi.org/10.1093/mnrasl/slx126

© 2017 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. We address the deficiency of odd-Z elements P, Cl, K and Sc in Galactic chemical evolution models through an investigation of the nucleosynthesis... Read More about Convective–reactive nucleosynthesis of K, Sc, Cl and p-process isotopes in O–C shell mergers.

Conditions for thermally induced all-optical switching in ferrimagnetic alloys: Modeling of TbCo (2017)
Journal Article
Moreno, R., Ostler, T. A., Chantrell, R. W., & Chubykalo-Fesenko, O. (2017). Conditions for thermally induced all-optical switching in ferrimagnetic alloys: Modeling of TbCo. Physical Review B, 96(1), Article 014409. https://doi.org/10.1103/PhysRevB.96.014409

We present atomistic spin dynamics modeling of thermally induced magnetization switching (TIMS) of disordered ferrimagnetic TbCo alloys varying the Tb concentration, laser pulse fluence, and its duration. Our results indicate that deterministic TIMS... Read More about Conditions for thermally induced all-optical switching in ferrimagnetic alloys: Modeling of TbCo.

Very metal-poor stars observed by the RAVE survey (2017)
Journal Article
Matijevič, G., Chiappini, C., Grebel, E. K., Wyse, R. F. G., Zwitter, T., Bienaymé, O., …Watson, F. (2017). Very metal-poor stars observed by the RAVE survey. Astronomy and Astrophysics, 603, A19. https://doi.org/10.1051/0004-6361/201730417

© ESO, 2017. Metal-poor stars trace the earliest phases in the chemical enrichment of the Universe. They give clues about the early assembly of the Galaxy as well as on the nature of the first stellar generations. Multi-object spectroscopic surveys p... Read More about Very metal-poor stars observed by the RAVE survey.

PLATO as it is: A legacy mission for Galactic archaeology (2017)
Journal Article
Miglio, A., Chiappini, C., Mosser, B., Davies, G. R., Freeman, K., Girardi, L., …Worley, C. C. (2017). PLATO as it is: A legacy mission for Galactic archaeology. Astronomische Nachrichten, 338(6), 644-661. https://doi.org/10.1002/asna.201713385

Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high-resolution chrono-chemo-kinematical maps of the Galaxy. Data from large-scale astrometric and spectroscopic surveys will soon... Read More about PLATO as it is: A legacy mission for Galactic archaeology.

Beam electrons as a source of Hα flare ribbons (2017)
Journal Article
Druett, M., Scullion, E., Zharkova, V., Matthews, S., Zharkov, S., & Rouppe Van der Voort, L. (2017). Beam electrons as a source of Hα flare ribbons. Nature communications, 8, 13. https://doi.org/10.1038/ncomms15905

The observations of solar flare onsets show rapid increase of hard and soft X-rays, ultra-violet emission with large Doppler blue shifts associated with plasma upflows, and Hα hydrogen emission with red shifts up to 1–4 Å. Modern radiative hydrodynam... Read More about Beam electrons as a source of Hα flare ribbons.

The neutron capture process in the He shell in core-collapse supernovae: Presolar silicon carbide grains as a diagnostic tool for nuclear astrophysics (2017)
Journal Article
Pignatari, M., Hoppe, P., Trappitsch, R., Fryer, C., Timmes, F., Herwig, F., & Hirschi, R. (2018). The neutron capture process in the He shell in core-collapse supernovae: Presolar silicon carbide grains as a diagnostic tool for nuclear astrophysics. Geochimica et cosmochimica acta, 221, 37-46. https://doi.org/10.1016/j.gca.2017.06.005

Carbon-rich presolar grains are found in primitive meteorites, with isotopic measurements to date suggesting a core-collapse supernovae origin site for some of them. This holds for about 1-2 % of presolar silicon carbide (SiC) grains, so-called Type... Read More about The neutron capture process in the He shell in core-collapse supernovae: Presolar silicon carbide grains as a diagnostic tool for nuclear astrophysics.

Stellar origin of 15N-rich presolar SiC grains of type AB: Supernovae with explosive hydrogen burning (2017)
Journal Article
Liu, N., Nittler, L. R., Pignatari, M., Alexander, C. M. O., & Wang, J. (2017). Stellar origin of 15N-rich presolar SiC grains of type AB: Supernovae with explosive hydrogen burning. The Astrophysical journal, 842(1), L1. https://doi.org/10.3847/2041-8213/aa74e5

© 2017. The American Astronomical Society. All rights reserved. We report C, N, and Si isotopic data for 59 highly 13 C-enriched presolar submicron-to micron-sized SiC grains from the Murchison meteorite, including eight putative nova grains (PNGs)... Read More about Stellar origin of 15N-rich presolar SiC grains of type AB: Supernovae with explosive hydrogen burning.

Universal switching of plasmonic signals using optical resonator modes (2017)
Journal Article
McPolin, C. P., Olivier, N., Bouillard, J., O'Connor, D. P., Krasavin, A. V., Dickson, W., …Zayats, A. V. (2017). Universal switching of plasmonic signals using optical resonator modes. Light Science & Applications, 6(6), e16237. https://doi.org/10.1038/lsa.2016.237

We propose and investigate, both experimentally and theoretically, a novel mechanism for switching and modulating plasmonic signals based on a Fano interference process, which arises from the coupling between a narrow-band optical Fabry-Pérot cavity... Read More about Universal switching of plasmonic signals using optical resonator modes.

Modelling and simulation analysis for the prediction of the performance of intrinsic conducting polymer current limiting device (2017)
Journal Article
Jabarullah, N. H., Mauldin, C., Navarro, L. A., Golden, J., Madianos, L., & Kemp, N. T. (2017). Modelling and simulation analysis for the prediction of the performance of intrinsic conducting polymer current limiting device. Advanced science letters, 23(6), 5117-5120. https://doi.org/10.1166/asl.2017.7322

© 2017 American Scientific Publishers All rights reserved. Previous studies have shown that the current limiting concept and interruption of short-circuit currents in low power applications have been introduced, particularly in polymer switch based o... Read More about Modelling and simulation analysis for the prediction of the performance of intrinsic conducting polymer current limiting device.

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., 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., Soubiran, C., Basak, N., …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., …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., …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., …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., …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.