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Theoretical study of the CO2 adsorption by Zeolitic Imidazolate Frameworks (ZIFs) (2017)
Journal Article
Izzaouihda, S., Abou El Makarim, H., Benoit, D. M., & Komiha, N. (2017). Theoretical study of the CO2 adsorption by Zeolitic Imidazolate Frameworks (ZIFs). Journal of physical chemistry. C, 121(37), 20259-20265. https://doi.org/10.1021/acs.jpcc.7b04977

Density functional theory with Grimme's empirical correction, DFT-D3, has been used to examine the adsorption of a carbon dioxide molecule by different sets of zeolitic imidazolate framework materials (ZIF-1 to -4, -6 to -10, and -zni). We have calcu... Read More about Theoretical study of the CO2 adsorption by Zeolitic Imidazolate Frameworks (ZIFs).

Precise measurement of the thermal and stellar Fe 54 (n,γ) Fe 55 cross sections via accelerator mass spectrometry (2017)
Journal Article
Wallner, A., Buczak, K., Belgya, T., Bichler, M., Coquard, L., Dillmann, I., Golser, R., Käppeler, F., Karakas, A., Kutschera, W., Lederer, C., Mengoni, A., Priller, A., Reifarth, R., Steier, P., Szentmiklosi, L., Kaeppeler, F., & Pignatari, M. (2017). Precise measurement of the thermal and stellar Fe 54 (n,γ) Fe 55 cross sections via accelerator mass spectrometry. Physical Review C, 96(2), Article ARTN 025808. https://doi.org/10.1103/PhysRevC.96.025808

© 2017 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the a... Read More about Precise measurement of the thermal and stellar Fe 54 (n,γ) Fe 55 cross sections via accelerator mass spectrometry.

Climbing the cosmic ladder with stellar twins in RAVE with Gaia (2017)
Journal Article
Jofré, P., Traven, G., Hawkins, K., Gilmore, G., Sanders, J. L., Mädler, T., Steinmetz, M., Kunder, A., Kordopatis, G., McMillan, P., Bienaymé, O., Bland-Hawthorn, J., Gibson, B. K., Grebel, E. K., Munari, U., Navarro, J., Parker, Q., Reid, W., Seabroke, G., & Zwitter, T. (2017). Climbing the cosmic ladder with stellar twins in RAVE with Gaia. Monthly notices of the Royal Astronomical Society, 472(3), 2517-2533. https://doi.org/10.1093/mnras/stx1877

© 2017 The Author. We apply the twin method to determine parallaxes to 232 545 stars of the RAVE survey using the parallaxes of Gaia DR1 as a reference. To search for twins in this large data set, we apply the t-student stochastic neighbour embedding... Read More about Climbing the cosmic ladder with stellar twins in RAVE with Gaia.

The evolutionary sequence of post-starburst galaxies (2017)
Journal Article
Wilkinson, C. L., Pimbblet, K. A., & Stott, J. P. (2017). The evolutionary sequence of post-starburst galaxies. Monthly notices of the Royal Astronomical Society, 472(2), 1447-1457. https://doi.org/10.1093/mnras/stx2034

© 2017 The Authors. There are multiple ways in which to select post-starburst galaxies in the literature. In this work, we present a study into how two well-used selection techniques have consequences on observable post-starburst galaxy parameters, s... Read More about The evolutionary sequence of post-starburst galaxies.

Zariski density and computing in arithmetic groups (2017)
Journal Article
Detinko, A., Flannery, D. L., & Hulpke, A. (2018). Zariski density and computing in arithmetic groups. Mathematics of Computation, 87(310), 967-986. https://doi.org/10.1090/mcom/3236

For n > 2, let Gamma _n denote either SL(n, {Z}) or Sp(n, {Z}). We give a practical algorithm to compute the level of the maximal principal congruence subgroup in an arithmetic group H\leq \Gamma _n. This forms the main component of our methods for c... Read More about Zariski density and computing in arithmetic groups.

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.

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., Bland-Hawthorn, J., Freeman, K. C., Gibson, B. K., Gilmore, G., Helmi, A., Kordopatis, G., Kunder, A., Munari, U., Navarro, J. F., Parker, Q. A., Reid, W., Seabroke, G., Siviero, A., Steinmetz, M., & 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.

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.

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.

Orbits of primitive k-homogenous groups on (N − k)-partitions with applications to semigroups (2017)
Journal Article
Araújo, J., Bentz, W., & Cameron, P. J. (2018). Orbits of primitive k-homogenous groups on (N − k)-partitions with applications to semigroups. Transactions of the American Mathematical Society, 371(1), 105-136. https://doi.org/10.1090/tran/7274

© 2018 American Mathematical Society. The purpose of this paper is to advance our knowledge of two of the most classic and popular topics in transformation semigroups: automorphisms and the size of minimal generating sets. In order to do this, we exa... Read More about Orbits of primitive k-homogenous groups on (N − k)-partitions with applications to semigroups.

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.

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.

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.