Outputs (72)

A simple and general method for solving detailed chemical evolution with delayed production of iron and other chemical elements (2016)
Journal Article
Vincenzo, F., Matteucci, F., & Spitoni, E. (2017). A simple and general method for solving detailed chemical evolution with delayed production of iron and other chemical elements. Monthly notices of the Royal Astronomical Society, 466(3), 2939–2947. https://doi.org/10.1093/mnras/stw3369

We present a theoretical method for solving the chemical evolution of galaxies, by assuming an instantaneous recycling approximation for chemical elements restored by massive stars and the Delay Time Distribution formalism for the delayed chemical en... Read More about A simple and general method for solving detailed chemical evolution with delayed production of iron and other chemical elements.

Evidence for HI replenishment in massive galaxies through gas accretion from the cosmic web (2016)
Journal Article
Kleiner, D., Pimbblet, K. A., Heath Jones, D., Koribalski, B. S., & Serra, P. (2017). Evidence for HI replenishment in massive galaxies through gas accretion from the cosmic web. Monthly notices of the Royal Astronomical Society, 466(4), 4692-4710. https://doi.org/10.1093/mnras/stw3328

We examine the H i -to-stellar mass ratio (H i fraction) for galaxies near filament backbones within the nearby Universe (d < 181 Mpc). This work uses the 6 degree Field Galaxy Survey (6dFGS) and the Discrete Persistent Structures Extractor (DisPerSE... Read More about Evidence for HI replenishment in massive galaxies through gas accretion from the cosmic web.

Atomic “bomb testing”: the Elitzur–Vaidman experiment violates the Leggett–Garg inequality (2016)
Journal Article
Robens, C., Alt, W., Emary, C., Meschede, D., & Alberti, A. (2017). Atomic “bomb testing”: the Elitzur–Vaidman experiment violates the Leggett–Garg inequality. Applied physics. B, Lasers and optics, 123(1), Article 12. https://doi.org/10.1007/s00340-016-6581-y

Elitzur and Vaidman have proposed a measurement scheme that, based on the quantum superposition principle, allows one to detect the presence of an object—in a dramatic scenario, a bomb—without interacting with it. It was pointed out by Ghirardi that... Read More about Atomic “bomb testing”: the Elitzur–Vaidman experiment violates the Leggett–Garg inequality.

The evolution of the radial gradient of oxygen abundance in spiral galaxies (2016)
Preprint / Working Paper
Mollá, M., Díaz, Á., Ascasibar, Y., Gibson, B., Cavichia, O., Costa, R. D. D. D., & Maciel, W. J. The evolution of the radial gradient of oxygen abundance in spiral galaxies

The aim of this work is to present our new series of chemical evolution models computed for spiral and low mass galaxies of different total masses and star formation efficiencies. We analyze the results of models, in particular the evolution of the r... Read More about The evolution of the radial gradient of oxygen abundance in spiral galaxies.

Amine catalysis for the organocatalytic diboration of challenging alkenes (2016)
Journal Article
Farre, A., Soares, K., Briggs, R. A., Balanta, A., Benoit, D. M., & Bonet, A. (2016). Amine catalysis for the organocatalytic diboration of challenging alkenes. Chemistry: a European journal, 22(49), 17552-17556. https://doi.org/10.1002/chem.201603979

© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The generation of in situ sp 2 –sp 3 diboron adducts has revolutionised the synthesis of organoboranes. Organocatalytic diboration reactions have represented a milestone in terms of unpredictable re... Read More about Amine catalysis for the organocatalytic diboration of challenging alkenes.

A simple, low cost interferometric autocorrelator with no moving parts (2016)
Journal Article
Kelly, T. J., Davitt, S. J., & Costello, J. T. (2016). A simple, low cost interferometric autocorrelator with no moving parts. Measurement Science and Technology, 27(11), 117003. https://doi.org/10.1088/0957-0233/27/11/117003

The design and implementation of a low cost interferometric autocorrelator with no moving parts is discussed. It is found that the device is optically simple, uses low cost components and self aligns. The device is used to measure the interferometric... Read More about A simple, low cost interferometric autocorrelator with no moving parts.

HI4PI: A full-sky Hi survey based on EBHIS and GASS (2016)
Journal Article
Ben Bekhti, N., Flöer, L., Keller, R., Kerp, J., Lenz, D., Winkel, B., Bailin, J., Calabretta, M. R., Dedes, L., Ford, H. A., Gibson, B. K., Haud, U., Janowiecki, S., Kalberla, P. M. W., Lockman, F. J., McClure-Griffiths, N. M., Murphy, T., Nakanishi, H., Pisano, D. J., Staveley-Smith, L., & HI4PI Collaboration:. (2016). HI4PI: A full-sky Hi survey based on EBHIS and GASS. Astronomy and Astrophysics, 594, A116. https://doi.org/10.1051/0004-6361/201629178

© 2016 ESO. Context. Measurement of the Galactic neutral atomic hydrogen (H i) column density, NH i, and brightness temperatures, TB, is of high scientific value for a broad range of astrophysical disciplines. In the past two decades, one of the most... Read More about HI4PI: A full-sky Hi survey based on EBHIS and GASS.

Stellar yields and abundances: new directions from planetary nebulae (2016)
Journal Article
Lugaro, M., Karakas, A. I., Pignatari, M., & Doherty, C. L. (2016). Stellar yields and abundances: new directions from planetary nebulae. IAU symposium and colloquium proceedings series / International Astronomical Union. Symposium, 12(S323), 86-94. https://doi.org/10.1017/s1743921317001247

Copyright © International Astronomical Union 2017. Planetary nebulae retain the signature of the nucleosynthesis and mixing events that occurred during the previous AGB phase. Observational signatures complement observations of AGB and post-AGB stars... Read More about Stellar yields and abundances: new directions from planetary nebulae.

Looking for imprints of the first stellar generations in metal-poor bulge field stars (2016)
Journal Article
Chiappini, C., Freeman, K., Ness, M., Depagne, E., Cantelli, E., Hirschi, R., Frischknecht, U., Maeder, A., Pignatari, M., Barbuy, B., Cantelli, E. W. C., Chiappini, C., Depagne, É., Freeman, K., Frischknecht, U., Hirschi, R., Maeder, A., Meynet, G., Ness, M., & Siqueira-Mello, C. (2016). Looking for imprints of the first stellar generations in metal-poor bulge field stars. Astronomy and Astrophysics, 593, A79-1-A79-16. https://doi.org/10.1051/0004-6361/201628104

© 2016 ESO. Context. Efforts to look for signatures of the first stars have concentrated on metal-poor halo objects. However, the low end of the bulge metallicity distribution has been shown to host some of the oldest objects in the Milky Way and hen... Read More about Looking for imprints of the first stellar generations in metal-poor bulge field stars.

Impacts of a flaring star-forming disc and stellar radial mixing on the vertical metallicity gradient (2016)
Journal Article
Kawata, D., Grand, R. J. J., Gibson, B. K., Casagrande, L., Hunt, J. A. S., & Brook, C. B. (2017). Impacts of a flaring star-forming disc and stellar radial mixing on the vertical metallicity gradient. Monthly notices of the Royal Astronomical Society, 464(1), 702-712. https://doi.org/10.1093/mnras/stw2363

Using idealized N-body simulations of a Milky Way-sized disc galaxy, we qualitatively study how the metallicity distributions of the thin disc star particles are modified by the formation of the bar and spiral arm structures. The thin disc in our num... Read More about Impacts of a flaring star-forming disc and stellar radial mixing on the vertical metallicity gradient.