All Outputs (82)

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., …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., …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., …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., …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.

Galaxy chemical evolution models: The role of molecular gas formation (2017)
Journal Article
Mollá, M., Díaz, Á. I., Ascasibar, Y., & Gibson, B. K. (2017). Galaxy chemical evolution models: The role of molecular gas formation. Monthly notices of the Royal Astronomical Society, 468(1), 305-318. https://doi.org/10.1093/mnras/stx419

In our classical grid of multiphase chemical evolution models, star formation in the disc occurs in two steps: first, molecular gas forms, and then stars are created by cloud-cloud collisions or interactions of massive stars with the surrounding mole... Read More about Galaxy chemical evolution models: The role of molecular gas formation.

Neutron spectroscopy of 26 Mg states: Constraining the stellar neutron source 22 Ne( α , n ) 25 Mg (2017)
Journal Article
Kivel, N., Karadimos, D., Käppeler, F., Kadi, Y., Krtička, M., Kopecky, S., …Schillebeeckx, P. (2017). Neutron spectroscopy of 26 Mg states: Constraining the stellar neutron source 22 Ne( α , n ) 25 Mg. Physics letters. B, 768, 1-6. https://doi.org/10.1016/j.physletb.2017.02.025

This work reports on accurate, high-resolution measurements of the 25 Mg(n,γ) 26 Mg and 25 Mg(n,tot) cross sections in the neutron energy range from thermal to about 300 keV, leading to a significantly improved 25 Mg(n,γ) 26 Mg parametrization. The r... Read More about Neutron spectroscopy of 26 Mg states: Constraining the stellar neutron source 22 Ne( α , n ) 25 Mg.

NanoSIMS isotope studies of rare types of presolar silicon carbide grains from the Murchison meteorite: Implications for supernova models and the role of 14C (2017)
Journal Article
Hoppe, P., Pignatari, M., Kodolányi, J., Gröner, E., & Amari, S. (2018). NanoSIMS isotope studies of rare types of presolar silicon carbide grains from the Murchison meteorite: Implications for supernova models and the role of 14C. Geochimica et cosmochimica acta, 221, 182-199. https://doi.org/10.1016/j.gca.2017.01.051

© 2017 Elsevier Ltd. We have conducted a NanoSIMS ion imaging survey of about 1800 presolar silicon carbide (SiC) grains from the Murchison meteorite. A total of 21 supernova (SN) X grains, two SN C grains, and two putative nova grains were identifie... Read More about NanoSIMS isotope studies of rare types of presolar silicon carbide grains from the Murchison meteorite: Implications for supernova models and the role of 14C.

Stellar (n,γ) cross sections of ²³Na (2017)
Journal Article
Uberseder, E., Heil, M., Käppeler, F., Lederer, C., Mengoni, A., Bisterzo, S., …Wiescher, M. (2017). Stellar (n,γ) cross sections of ²³Na. Physical Review C, 95(2), 025803. https://doi.org/10.1103/PhysRevC.95.025803

The cross section of the ²³Na(n,γ)²⁴Na reaction has been measured via the activation method at the Karlsruhe 3.7 MV Van de Graaff accelerator. NaCl samples were exposed to quasistellar neutron spectra at kT = 5.1 and 25 keV produced via the ¹⁸O(p,n)¹... Read More about Stellar (n,γ) cross sections of ²³Na.

Modeling the thickness dependence of the magnetic phase transition temperature in thin FeRh films (2017)
Journal Article
Ostler, T. A., Barton, C., Thomson, T., & Hrkac, G. (2017). Modeling the thickness dependence of the magnetic phase transition temperature in thin FeRh films. Physical Review B, 95(6), Article 064415. https://doi.org/10.1103/PhysRevB.95.064415

FeRh and its first-order phase transition can open new routes for magnetic hybrid materials and devices under the assumption that it can be exploited in ultra-thin-film structures. Motivated by experimental measurements showing an unexpected increase... Read More about Modeling the thickness dependence of the magnetic phase transition temperature in thin FeRh films.

Dual-modal SERS/fluorescence AuNP probe for mitochondrial imaging (2017)
Journal Article
Eling, C. J., Price, T. W., Marshall, A. R. L., Narda Viscomi, F., Robinson, P., Firth, G., …Stasiuk, G. J. (2017). Dual-modal SERS/fluorescence AuNP probe for mitochondrial imaging. ChemPlusChem, 82(5), 674-680. https://doi.org/10.1002/cplu.201600593

A novel SERS/fluorescent multimodal imaging probe for mitochondria has been synthesised using 12 nm diameter gold nanoparticles (AuNP) surface functionalised with a rhodamine thiol derivative ligand. The normal pH dependant acidic fluorescence of the... Read More about Dual-modal SERS/fluorescence AuNP probe for mitochondrial imaging.

Chandra and JVLA Observations of HST Frontier Fields Cluster MACS J0717.5+3745 (2017)
Journal Article
van Weeren, R. J., Ogrean, G. A., Jones, C., Forman, W. R., Andrade-Santos, F., Pearce, C. J. J., …Zitrin, A. (2017). Chandra and JVLA Observations of HST Frontier Fields Cluster MACS J0717.5+3745. The Astrophysical journal, 835(2), 197. https://doi.org/10.3847/1538-4357/835/2/197

To investigate the relationship between thermal and non-thermal components in merger galaxy clusters, we present deep JVLA and Chandra observations of the HST Frontier Fields cluster MACS J0717.5+3745. The Chandra image shows a complex merger event,... Read More about Chandra and JVLA Observations of HST Frontier Fields Cluster MACS J0717.5+3745.

A study of central galaxy rotation with stellar mass and environment (2017)
Journal Article
Lara-Lopez, M. A., Lopez-Sanchez, A. R., Oliva-Altamirano, P., Brough, S., Tran, K., Jimmy, …Couch, W. J. (2017). A study of central galaxy rotation with stellar mass and environment. The Astronomical journal, 153(2), 89. https://doi.org/10.3847/1538-3881/153/2/89

© 2017. The American Astronomical Society. All rights reserved. We present a pilot analysis of the influence of galaxy stellar mass and cluster environment on the probability of slow rotation in 22 central galaxies at mean redshift z = 0.07. This inc... Read More about A study of central galaxy rotation with stellar mass and environment.

Chromospherically Active Stars in the RAVE Survey. II. Young dwarfs in the Solar neighborhood (2017)
Journal Article
Žerjal, M., Zwitter, T., Matijevič, G., Grebel, E. K., Kordopatis, G., Munari, U., …Wyse, R. F. G. (2017). Chromospherically Active Stars in the RAVE Survey. II. Young dwarfs in the Solar neighborhood. The Astrophysical journal, 835(1), 61. https://doi.org/10.3847/1538-4357/835/1/61

A large sample of over 38,000 chromospherically active candidate solar-like stars and cooler dwarfs from the RAVE survey is addressed in this paper. An improved activity identification with respect to the previous study was introduced to build a cata... Read More about Chromospherically Active Stars in the RAVE Survey. II. Young dwarfs in the Solar neighborhood.

The Radial Velocity Experiment (RAVE): fifth data release (2017)
Journal Article
Kunder, A., Kordopatis, G., Steinmetz, M., Zwitter, T., McMillan, P. J., Casagrande, L., …Mosser, B. (2017). The Radial Velocity Experiment (RAVE): fifth data release. Astronomical Journal, 153(2), 75. https://doi.org/10.3847/1538-3881/153/2/75

Data Release 5 (DR5) of the Radial Velocity Experiment (RAVE) is the fifth data release from a magnitude-limited (9 < I < 12) survey of stars randomly selected in the Southern Hemisphere. The RAVE medium-resolution spectra (R ∼ 7500) covering the Ca-... Read More about The Radial Velocity Experiment (RAVE): fifth data release.

Capturing the 3D motion of an infalling galaxy via fluid dynamics (2017)
Journal Article
Su, Y., Kraft, R. P., Nulsen, P. E. J., Roediger, E., Forman, W. R., Churazov, E., …Machacek, M. E. (2017). Capturing the 3D motion of an infalling galaxy via fluid dynamics. The Astrophysical journal, 835(1), 19. https://doi.org/10.3847/1538-4357/835/1/19

The Fornax Cluster is the nearest galaxy cluster in the southern sky. NGC 1404 is a bright elliptical galaxy falling through the intracluster medium of the Fornax Cluster. The sharp leading edge of NGC 1404 forms a classical "cold front" that separat... Read More about Capturing the 3D motion of an infalling galaxy via fluid dynamics.

i-process Nucleosynthesis and Mass Retention Efficiency in He-shell Flash Evolution of Rapidly Accreting White Dwarfs (2017)
Journal Article
Denissenkov, P. A., Herwig, F., Battino, U., Ritter, C., Pignatari, M., Jones, S., & Paxton, B. (2017). i-process Nucleosynthesis and Mass Retention Efficiency in He-shell Flash Evolution of Rapidly Accreting White Dwarfs. Astrophysical journal. Letters, 834(2), L10. https://doi.org/10.3847/2041-8213/834/2/l10

© 2017. The American Astronomical Society. All rights reserved. Based on stellar evolution simulations, we demonstrate that rapidly accreting white dwarfs (WDs) in close binary systems are an astrophysical site for the intermediate neutron-capture pr... Read More about i-process Nucleosynthesis and Mass Retention Efficiency in He-shell Flash Evolution of Rapidly Accreting White Dwarfs.