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Phase mixing due to the Galactic potential: steps in the position and velocity distributions of popped star clusters (2013)
Journal Article
Candlish, G. N., Smith, R., Fellhauer, M., Gibson, B. K., Kroupa, P., & Assmann, P. (2014). Phase mixing due to the Galactic potential: steps in the position and velocity distributions of popped star clusters. Monthly notices of the Royal Astronomical Society, 437(4), 3702-3717. https://doi.org/10.1093/mnras/stt2166

As star clusters are expected to form with low star formation efficiencies, the gas in the cluster is expelled quickly and early in their development: the star cluster ‘pops’. This leads to an unbound stellar system, evolving in the Galactic potentia... Read More about Phase mixing due to the Galactic potential: steps in the position and velocity distributions of popped star clusters.

Phase mixing of popped star clusters (2013)
Conference Proceeding
Candlish, G. N., Smith, R., Fellhauer, M., Gibson, B. K., Kroupa, P., & Assmann, P. (2013). Phase mixing of popped star clusters. In A. Mateus, J. Gregorio-Hetem, & R. Cid Fernandes (Eds.),

As star clusters are expected to form with low star formation efficiencies, the gas in the cluster is expelled quickly and early in their development: the star cluster pops. This leads to an unbound stellar system. Previous N-body simulations have de... Read More about Phase mixing of popped star clusters.

The [α/Fe] ratios of very metal-poor stars within the integrated galactic initial mass function theory (2013)
Journal Article
Recchi, S., Calura, F., Kroupa, P., & Gibson, B. K. (2014). The [α/Fe] ratios of very metal-poor stars within the integrated galactic initial mass function theory. Monthly notices of the Royal Astronomical Society, 437(1), 994-1008. https://doi.org/10.1093/mnras/stt1971

The aim of this paper is to quantify the amplitude of the predicted plateau in [α/Fe] ratios associated with the most metal-poor stars of a galaxy. We assume that the initial mass function (IMF) in galaxies is steeper if the star formation rate (SFR)... Read More about The [α/Fe] ratios of very metal-poor stars within the integrated galactic initial mass function theory.

Diffuse interstellar band at 8620 Å in RAVE : a new method for detecting the diffuse interstellar band in spectra of cool stars (2013)
Journal Article
Bland-Hawthorn, J., Kos, J., Zwitter, T., Grebel, E. K., Bienayme, O., Binney, J., …Wyse, R. F. G. (2013). Diffuse interstellar band at 8620 Å in RAVE : a new method for detecting the diffuse interstellar band in spectra of cool stars. The Astrophysical journal, 778(2), 86. https://doi.org/10.1088/0004-637x/778/2/86

Diffuse interstellar bands (DIBs) are usually observed in spectra of hot stars, where interstellar lines are rarely blended with stellar ones. The need for hot stars is a strong limitation in the number of sightlines we can observe and their distribu... Read More about Diffuse interstellar band at 8620 Å in RAVE : a new method for detecting the diffuse interstellar band in spectra of cool stars.

The radial velocity experiment (RAVE): Fourth data release (2013)
Journal Article
Kordopatis, G., Gilmore, G., Steinmetz, M., Boeche, C., Seabroke, G. M., Siebert, A., …Žerjal, M. (2013). The radial velocity experiment (RAVE): Fourth data release. Astronomical Journal, 146(5), 134. https://doi.org/10.1088/0004-6256/146/5/134

We present the stellar atmospheric parameters (effective temperature, surface gravity, overall metallicity), radial velocities, individual abundances, and distances determined for 425,561 stars, which constitute the fourth public data release of the... Read More about The radial velocity experiment (RAVE): Fourth data release.

In the thick of it: metal-poor disc stars in RAVE (2013)
Journal Article
Kordopatis, G., Gilmore, G., Wyse, R., Steinmetz, M., Siebert, A., Bienaymé, O., …Siviero, A. (2013). In the thick of it: metal-poor disc stars in RAVE. Monthly notices of the Royal Astronomical Society, 436(4), 3231-3246. https://doi.org/10.1093/mnras/stt1804

By selecting in the Radial Velocity Experiment-fourth data release (RAVE-DR4) survey the stars located between 1 and 2 kpc above the Galactic plane, we question the consistency of the simplest three-component model (thin disc, thick disc and halo) fo... Read More about In the thick of it: metal-poor disc stars in RAVE.

Galactic constraints on supernova progenitor models (2013)
Journal Article
Acharova, I. A., Gibson, B. K., Mishurov, Y. N., & Kovtyukh, V. V. (2013). Galactic constraints on supernova progenitor models. Astronomy and Astrophysics, 557, A107. https://doi.org/10.1051/0004-6361/201220944

Aims. To estimate the mean masses of oxygen and iron ejected per each type of supernovae (SNe) event from observations of the elemental abundance patterns in the Galactic disk and constrain the relevant SNe progenitor models. Methods. We undertake a... Read More about Galactic constraints on supernova progenitor models.

Constraining sub-grid physics with high-redshift spatially-resolved metallicity distributions (2013)
Journal Article
Gibson, B. K., Pilkington, K., Brook, C. B., Stinson, G. S., & Bailin, J. (2013). Constraining sub-grid physics with high-redshift spatially-resolved metallicity distributions. Astronomy and Astrophysics, 554, A47. https://doi.org/10.1051/0004-6361/201321239

Aims. We examine the role of energy feedback in shaping the distribution of metals within cosmological hydrodynamical simulations of L*disc galaxies. While negative abundance gradients today provide a boundary condition for galaxy evolution models, i... Read More about Constraining sub-grid physics with high-redshift spatially-resolved metallicity distributions.

The stellar metallicity distribution of disc galaxies and bulges in cosmological simulations (2012)
Journal Article
Calura, F., Gibson, B. K., Michel-Dansac, L., Stinson, G. S., Cignoni, M., Dotter, A., …Wadsley, J. (2012). The stellar metallicity distribution of disc galaxies and bulges in cosmological simulations. Monthly notices of the Royal Astronomical Society, 427(2), 1401-1417. https://doi.org/10.1111/j.1365-2966.2012.22052.x

By means of high-resolution cosmological hydrodynamical simulations of Milky Way (MW) like disc galaxies, we conduct an analysis of the associated stellar metallicity distribution functions (MDFs). After undertaking a kinematic decomposition of each... Read More about The stellar metallicity distribution of disc galaxies and bulges in cosmological simulations.

Properties of simulated Milky Way-mass galaxies in loose group and field environments (2012)
Journal Article
Few, C. G., Gibson, B. K., Courty, S., Michel-Dansac, L., Brook, C. B., & Stinson, G. S. (2012). Properties of simulated Milky Way-mass galaxies in loose group and field environments. Astronomy and Astrophysics, 547, Article ARTN A63. https://doi.org/10.1051/0004-6361/201219649

Aims. We test the validity of comparing simulated field disk galaxies with the empirical properties of systems situated within environments more comparable to loose groups, including the Milky Way's Local Group. Methods. Cosmological simulations of M... Read More about Properties of simulated Milky Way-mass galaxies in loose group and field environments.

Calibrating an updated smoothed particle hydrodynamics scheme within GCD+ (2012)
Journal Article
Kawata, D., Okamoto, T., Gibson, B. K., Barnes, D. J., & Cen, R. (2013). Calibrating an updated smoothed particle hydrodynamics scheme within GCD+. Monthly notices of the Royal Astronomical Society, 428(3), 1968-1979. https://doi.org/10.1093/mnras/sts161

We adapt a modern scheme of smoothed particle hydrodynamics (SPH) to our treeN-body/SPH galactic chemodynamics code GCD+. The applied scheme includes implementations of the artificial viscosity switch and artificial thermal conductivity proposed by M... Read More about Calibrating an updated smoothed particle hydrodynamics scheme within GCD+.

Hierarchical formation of bulgeless galaxies - II. Redistribution of angular momentum via galactic fountains: Bulgeless discs II (2011)
Journal Article
Brook, C. B., Stinson, G., Gibson, B. K., Roškar, R., Wadsley, J., & Quinn, T. (2012). Hierarchical formation of bulgeless galaxies - II. Redistribution of angular momentum via galactic fountains: Bulgeless discs II. Monthly notices of the Royal Astronomical Society, 419(1), 771-779. https://doi.org/10.1111/j.1365-2966.2011.19740.x

Within a fully cosmological hydrodynamical simulation, we form a galaxy which rotates at 140 kms-1, and it is characterized by two loose spiral arms and a bar, indicative of a Hubble-type SBc/d galaxy. We show that our simulated galaxy has no classic... Read More about Hierarchical formation of bulgeless galaxies - II. Redistribution of angular momentum via galactic fountains: Bulgeless discs II.

The origin of the light distribution in spiral galaxies (2009)
Journal Article
Sanchez-Blazquez, P., Courty, S., Gibson, B. K., & Brook, C. B. (2009). The origin of the light distribution in spiral galaxies. Monthly notices of the Royal Astronomical Society, 398(2), 591-606. https://doi.org/10.1111/j.1365-2966.2009.15133.x

We analyse a high-resolution, fully cosmological, hydrodynamical disc galaxy simulation, to study the source of the double-exponential light profiles seen in many stellar discs, and the effects of stellar radial migration upon the spatiotemporal evol... Read More about The origin of the light distribution in spiral galaxies.

An HI survey of six local group analogs. I. Survey description and the search for high-velocity clouds (2007)
Journal Article
Pisano, D. J., Barnes, D. G., Gibson, B. K., Staveley-Smith, L., Freeman, K. C., & Kilborn, V. A. (2007). An HI survey of six local group analogs. I. Survey description and the search for high-velocity clouds. The Astrophysical journal, 662(2), 959-968. https://doi.org/10.1086/517986

We have conducted an H I 21 cm emission-line survey using the Parkes 20 cm multibeam instrument and the Australia Telescope Compact Array (ATCA) of six loose groups of galaxies chosen to be analogs to the Local Group. The goal of this survey is to ma... Read More about An HI survey of six local group analogs. I. Survey description and the search for high-velocity clouds.

The initial-final mass relationship: Spectroscopy of white dwarfs in NGC 2099 (M37) (2004)
Journal Article
Kalirai, J. S., Richer, H. B., Reitzel, D., Hansen, B. M., Rich, R. M., Fahlman, G. G., …Von Hippel, T. (2004). The initial-final mass relationship: Spectroscopy of white dwarfs in NGC 2099 (M37). Astrophysical journal. Letters, 618(2), L123-L127

We present new observations of very faint white dwarfs (WDs) in the rich open star cluster NGC 2099 (M37). Following deep, wide-field imaging of the cluster using the Canada-France-Hawaii Telescope, we have now obtained spectroscopic observations of... Read More about The initial-final mass relationship: Spectroscopy of white dwarfs in NGC 2099 (M37).

The evolution of the radial gradient of oxygen abundance in spiral galaxies (1900)
Book Chapter
Gibson, B., Ascasibar, Y., Cavichia, O., Costa, R. D. D. D., Díaz, Á., Maciel, W. J., & Mollá, M. (in press). 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.

Catching element formation in the act
Other
Fryer, C. L., Timmes, F., Hungerford, A. L., Couture, A., Adams, F., Aoki, W., …Pignatari, M. (2019). Catching element formation in the act

Gamma-ray astronomy explores the most energetic photons in nature to address some of the most pressing puzzles in contemporary astrophysics. It encompasses a wide range of objects and phenomena: stars, supernovae, novae, neutron stars, stellar-mass b... Read More about Catching element formation in the act.