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All Outputs (117)

Galactic chemical evolution of radioactive isotopes (2019)
Journal Article
Côté, B., Lugaro, M., Reifarth, R., Pignatari, M., Világos, B., Yagüe, A., & Gibson, B. K. (2019). Galactic chemical evolution of radioactive isotopes. The Astrophysical journal, 878(2), Article 156. https://doi.org/10.3847/1538-4357/ab21d1

The presence of short-lived (∼ Myr) radioactive isotopes in meteoritic inclusions at the time of their formation represents a unique opportunity to study the circumstances that led to the formation of the Solar System. To interpret these observations... Read More about Galactic chemical evolution of radioactive isotopes.

The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo (2019)
Journal Article
Wyse, R. F., Sakari, C. M., Roederer, I. U., Placco, V. M., Beers, T. C., Ezzeddine, R., …Watson, F. (2019). The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo. The Astrophysical journal, 874(2), Article 148. https://doi.org/10.3847/1538-4357/ab0c02

A new moderately r-process-enhanced metal-poor star, RAVE J093730.5−062655, has been identified in the Milky Way halo as part of an ongoing survey by the R-Process Alliance. The temperature and surface gravity indicate that J0937−0626 is likely a hor... Read More about The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo.

Impact of observational selection functions on simulated age and metallicity distributions (2019)
Thesis
Atkin, D. (2019). Impact of observational selection functions on simulated age and metallicity distributions. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4222148

I use a novel approach to close the gap between observations and simulations of stellar abundance and ages by comparing observational data from Gaia-ESO 4th release (GES-iDR4) with that of a Milky Way-like galaxy simulation. The simulation is brought... Read More about Impact of observational selection functions on simulated age and metallicity distributions.

Local disc model in view of Gaia DR1 and RAVE data (2018)
Journal Article
Sysoliatina, K., Just, A., Koutsouridou, I., Grebel, E. K., Kordopatis, G., Steinmetz, M., …Seabroke, G. (2018). Local disc model in view of Gaia DR1 and RAVE data. Astronomy and Astrophysics, 620, A71. https://doi.org/10.1051/0004-6361/201833228

Aims. We test the performance of the semi-analytic self-consistent Just-Jahreiß disc model (JJ model) with the astrometric data from the Tycho-Gaia Astrometric Solution (TGAS) sub-catalogue of the first Gaia data release (Gaia DR1), as well as the ra... Read More about Local disc model in view of Gaia DR1 and RAVE data.

The r-process alliance: First release from the Northern search for r-process enhanced metal-poor stars in the Galactic Halo (2018)
Journal Article
Sakari, C. M., Placco, V. M., Farrell, E. M., Roederer, I. U., Wallerstein, G., Beers, T. C., …Watson, F. (2018). The r-process alliance: First release from the Northern search for r-process enhanced metal-poor stars in the Galactic Halo. The Astrophysical journal, 868(2), 110. https://doi.org/10.3847/1538-4357/aae9df

This paper presents the detailed abundances and r-process classifications of 126 newly identified metal-poor stars as part of an ongoing collaboration, the R-Process Alliance.

The time evolution of the Milky Way's oxygen abundance gradient (2018)
Journal Article
Mollá, M., Díaz, Á. I., Cavichia, O., Gibson, B. K., Maciel, W. J., Costa, R. D., …Few, C. G. (2019). The time evolution of the Milky Way's oxygen abundance gradient. Monthly notices of the Royal Astronomical Society, 482(3), 3071-3088. https://doi.org/10.1093/mnras/sty2877

© 2018 The Author(s). We study the evolution of oxygen abundance radial gradients as a function of time for the Milky Way Galaxy obtained with our MulChem chemical evolution model. We review the recent data of abundances for different objects observe... Read More about The time evolution of the Milky Way's oxygen abundance gradient.

An ambitwistor string field theory approach to supergravity (2018)
Thesis
Riccombeni, D. A. (2018). An ambitwistor string field theory approach to supergravity. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4398544

In this thesis a covariant closed superstring field theory, equivalent to classical ten-dimensional Type II supergravity, is presented. The defining conformal field theory is the ambitwistor string worldsheet theory of Mason and Skinner [1]. This t... Read More about An ambitwistor string field theory approach to supergravity.

The local rotation curve of the Milky Way based on SEGUE and RAVE data (2018)
Journal Article
Sysoliatina, K., Just, A., Golubov, O., Parker, Q. A., Grebel, E. K., Kordopatis, G., …Watson, F. (2018). The local rotation curve of the Milky Way based on SEGUE and RAVE data. Astronomy and Astrophysics, 614, A63. https://doi.org/10.1051/0004-6361/201731143

Aims. We construct the rotation curve of the Milky Way in the extended solar neighbourhood using a sample of Sloan Extension for Galactic Understanding and Exploration (SEGUE) G-dwarfs. We investigate the rotation curve shape for the presence of any... Read More about The local rotation curve of the Milky Way based on SEGUE and RAVE data.

Evolution of starburst galaxies in the Illustris simulation (2018)
Journal Article
Wilkinson, C. L., Pimbblet, K. A., Stott, J. P., Few, C. G., & Gibson, B. K. (2018). Evolution of starburst galaxies in the Illustris simulation. Monthly notices of the Royal Astronomical Society, 479(1), 758-767. https://doi.org/10.1093/mnras/sty1493

© 2018 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society. There is a consensus in the literature that starburst galaxies are triggered by interaction events. However, it remains an open question as to wha... Read More about Evolution of starburst galaxies in the Illustris simulation.

The origin of the Milky Way's halo age distribution (2018)
Journal Article
Carollo, D., Tissera, P. B., Beers, T. C., Gudin, D., Gibson, B. K., Freeman, K. C., & Monachesi, A. (2018). The origin of the Milky Way's halo age distribution. Astrophysical journal. Letters, 859(1), L7. https://doi.org/10.3847/2041-8213/aac2dc

© 2018. The American Astronomical Society.. We present an analysis of the radial age gradients for the stellar halos of five Milky Way (MW) mass-sized systems simulated as part of the Aquarius Project. The halos show a diversity of age trends, reflec... Read More about The origin of the Milky Way's halo age distribution.

Correlations between age, kinematics, and chemistry as seen by the RAVE survey (2018)
Journal Article
Wojno, J., Kordopatis, G., Steinmetz, M., McMillan, P., Binney, J., Famaey, B., …Seabroke, G. (2018). Correlations between age, kinematics, and chemistry as seen by the RAVE survey. Monthly notices of the Royal Astronomical Society, 477(4), 5612-5624. https://doi.org/10.1093/mnras/sty1016

We explore the connections between stellar age, chemistry, and kinematics across a Galactocentric distance of 7.5 < R(kpc) < 9.0, using a sample of ∼12 000 intermediate-mass (FGK) turn-off stars observed with the RAdial Velocity Experiment (RAVE) sur... Read More about Correlations between age, kinematics, and chemistry as seen by the RAVE survey.

Improved distances and ages for stars common to TGAS and RAVE (2018)
Journal Article
McMillan, P. J., Kordopatis, G., Kunder, A., Binney, J., Wojno, J., Zwitter, T., …Wyse, R. F. (2018). Improved distances and ages for stars common to TGAS and RAVE. Monthly notices of the Royal Astronomical Society, 477(4), 5279-5300. https://doi.org/10.1093/MNRAS/STY990

We combine parallaxes from the first Gaia data release with the spectrophotometric distance estimation framework for stars in the fifth RAVE survey data release. The combined distance estimates are more accurate than either determination in isolation... Read More about Improved distances and ages for stars common to TGAS and RAVE.

an overview of the MHONGOOSE survey: Observing nearby galaxies with MeerKAT (2018)
Journal Article
de Blok, W. J., Adams, E. A., Amram, P., Athanassoula, E., Bagetakos, I., Balkowski, C., …Zijlstra, A. (2018). an overview of the MHONGOOSE survey: Observing nearby galaxies with MeerKAT. Proceedings of Science, 277, Article 7. https://doi.org/10.22323/1.277.0007

© Copyright owned by the author(s). MHONGOOSE is a deep survey of the neutral hydrogen distribution in a representative sample of 30 nearby disk and dwarf galaxies with H I masses from ∼ 106 to ∼ 1011 M, and luminosities from MR ∼ 12 to MR ∼ −22. The... Read More about an overview of the MHONGOOSE survey: Observing nearby galaxies with MeerKAT.

Is the Milky Way still breathing? RAVE–Gaia streaming motions (2018)
Journal Article
Carrillo, I., Minchev, I., Kordopatis, G., Steinmetz, M., Binney, J., Anders, F., …Zwitter, T. (2018). Is the Milky Way still breathing? RAVE–Gaia streaming motions. Monthly notices of the Royal Astronomical Society, 475(2), 2679-2696. https://doi.org/10.1093/mnras/stx3342

We use data from the Radial Velocity Experiment (RAVE) and the Tycho-Gaia astrometric solution (TGAS) catalogue to compute the velocity fields yielded by the radial (VR), azimuthal (Vϕ),and vertical (Vz) components of associated Galactocentric veloci... Read More about Is the Milky Way still breathing? RAVE–Gaia streaming motions.

The Foundation Supernova Survey: Motivation, design, implementation, and first data release (2017)
Journal Article
Foley, R. J., Scolnic, D., Rest, A., Jha, S. W., Pan, Y., Riess, A. G., …Willman, M. (2018). The Foundation Supernova Survey: Motivation, design, implementation, and first data release. Monthly notices of the Royal Astronomical Society, 475(1), 193-219. https://doi.org/10.1093/mnras/stx3136

© 2017 The Author(s). The Foundation Supernova Survey aims to provide a large, high-fidelity, homogeneous, and precisely calibrated low-redshift Type Ia supernova (SN Ia) sample for cosmology. The calibration of the current low-redshift SN sample is... Read More about The Foundation Supernova Survey: Motivation, design, implementation, and first data release.

The role of stellar radial motions in shaping galaxy surface brightness profiles (2017)
Journal Article
Ruiz-Lara, T., Few, C. G., Florido, E., Gibson, B. K., Pérez, I., & Sánchez-Blázquez, P. (2017). The role of stellar radial motions in shaping galaxy surface brightness profiles. Astronomy and Astrophysics, 608, A126. https://doi.org/10.1051/0004-6361/201731485

Aims. The physics driving features such as breaks observed in galaxy surface brightness (SB) profiles remains contentious. Here, we assess the importance of stellar radial motions in shaping their characteristics. Methods. We use the simulated Milky... Read More about The role of stellar radial motions in shaping galaxy surface brightness profiles.

Metallicity gradient of the thick disc progenitor at high redshift (2017)
Journal Article
Kawata, D., Prieto, C. A., Brook, C. B., Casagrande, L., Ciucă, I., Gibson, B. K., …Hunt, J. A. S. (2018). Metallicity gradient of the thick disc progenitor at high redshift. Monthly notices of the Royal Astronomical Society, 473(1), 867-878. https://doi.org/10.1093/mnras/stx2464

© 2017 The Authors. We have developed a novel Markov Chain Monte Carlo chemical 'painting' technique to explore possible radial and vertical metallicity gradients for the thick disc progenitor. In our analysis, we match an N-body simulation to the da... Read More about Metallicity gradient of the thick disc progenitor at high redshift.

The Gaia-ESO Survey: matching chemodynamical simulations to observations of the Milky Way (2017)
Journal Article
Thompson, B. B., Few, C. G., Bergemann, M., Gibson, B. K., MacFarlane, B. A., Serenelli, A., …Zaggia, S. (2018). The Gaia-ESO Survey: matching chemodynamical simulations to observations of the Milky Way. Monthly notices of the Royal Astronomical Society, 473(1), 185-197. https://doi.org/10.1093/MNRAS/STX2316

The typical methodology for comparing simulated galaxies with observational surveys is usually to apply a spatial selection to the simulation to mimic the region of interest covered by a comparable observational survey sample. In this work, we compar... Read More about The Gaia-ESO Survey: matching chemodynamical simulations to observations of the Milky Way.