The RAdial Velocity Experiment (RAVE): Parameterisation of RAVE spectra based on convolutional neural networks

Guiglion, G.; Matijevič, G.; Queiroz, A. B.A.; Valentini, M.; Steinmetz, M.; Chiappini, C.; Grebel, E. K.; McMillan, P. J.; Kordopatis, G.; Kunder, A.; Zwitter, T.; Khalatyan, A.; Anders, F.; Enke, H.; Minchev, I.; Monari, G.; Wyse, R. F.G.; Bienaymé, O.; Bland-Hawthorn, J.; Gibson, B. K.; Navarro, J. F.; Parker, Q.; Reid, W.; Seabroke, G. M.; Siebert, A.

doi:10.1051/0004-6361/202038271

Predictions for CO emission and the CO-to-H2 conversion factor in galaxy simulations with non-equilibrium chemistry (2024)
Journal Article
Thompson, O. A., Richings, A. J., Gibson, B. K., Faucher-Giguère, C. A., Feldmann, R., & Hayward, C. C. (2024). Predictions for CO emission and the CO-to-H2 conversion factor in galaxy simulations with non-equilibrium chemistry. Monthly notices of the Royal Astronomical Society, 532(2), 1948-1965. https://doi.org/10.1093/mnras/stae1486

Our ability to trace the star-forming molecular gas is important to our understanding of the Universe. We can trace this gas using CO emission, converting the observed CO intensity into the H2 gas mass of the region using the CO-to-H2 conversion fact... Read More about Predictions for CO emission and the CO-to-H2 conversion factor in galaxy simulations with non-equilibrium chemistry.

The environmental dependence of the stellar mass-gas metallicity relation in Horizon Run 5 (2024)
Journal Article
Rowntree, A., Singh, A., Vincenzo, F., Gibson, B. K., Gouin, C., Galárrag a-Espinosa, D., Lee, J., Kim, J., Laigle, C., Park, C., Pichon, C., Few, G., Hong, S. E., & Kim, Y. (2024). The environmental dependence of the stellar mass-gas metallicity relation in Horizon Run 5. Monthly notices of the Royal Astronomical Society, 531(4), 3858-3875. https://doi.org/10.1093/mnras/stae1384

Metallicity offers a unique window into the baryonic history of the cosmos, being instrumental in probing evolutionary processes in galaxies between different cosmic environments. We aim to quantify the contribution of these environments to the scatt... Read More about The environmental dependence of the stellar mass-gas metallicity relation in Horizon Run 5.

Differential Sensitivity of the KM3NeT/ARCA detector to a diffuse neutrino flux and to point-like source emission: Exploring the case of the Starburst Galaxies (2024)
Journal Article
Aiello, S., Albert, A., Alshamsi, M., Garre, S. A., Aly, Z., Ambrosone, A., …Zywucka, N. (2024). Differential Sensitivity of the KM3NeT/ARCA detector to a diffuse neutrino flux and to point-like source emission: Exploring the case of the Starburst Galaxies. Astroparticle Physics, 162, Article 102990. https://doi.org/10.1016/j.astropartphys.2024.102990

KM3NeT/ARCA is a Cherenkov neutrino telescope under construction in the Mediterranean sea, optimised for the detection of astrophysical neutrinos with energies above ∼1 TeV. In this work, using Monte Carlo simulations including all-flavour neutrinos,... Read More about Differential Sensitivity of the KM3NeT/ARCA detector to a diffuse neutrino flux and to point-like source emission: Exploring the case of the Starburst Galaxies.

Searches for neutrino counterparts of gravitational waves from the LIGO/Virgo third observing run with KM3NeT (2024)
Journal Article
Aiello, S., Albert, A., Alves Garre, S., Aly, Z., Ambrosone, A., Ameli, F., …Zywucka, N. (2024). Searches for neutrino counterparts of gravitational waves from the LIGO/Virgo third observing run with KM3NeT. Journal of cosmology and astroparticle physics, 2024(4), Article 26. https://doi.org/10.1088/1475-7516/2024/04/026

The KM3NeT neutrino telescope is currently being deployed at two different sites in the Mediterranean Sea. First searches for astrophysical neutrinos have been performed using data taken with the partial detector configuration already in operation. T... Read More about Searches for neutrino counterparts of gravitational waves from the LIGO/Virgo third observing run with KM3NeT.

Embedded software of the KM3NeT central logic board (2023)
Journal Article
Aiello, S., Albert, A., Alves Garre, S., Aly, Z., Ambrosone, A., Ameli, F., …Zywucka, N. (2024). Embedded software of the KM3NeT central logic board. Computer Physics Communications, 296, Article 109036. https://doi.org/10.1016/j.cpc.2023.109036

The KM3NeT Collaboration is building and operating two deep sea neutrino telescopes at the bottom of the Mediterranean Sea. The telescopes consist of latices of photomultiplier tubes housed in pressure-resistant glass spheres, called digital optical... Read More about Embedded software of the KM3NeT central logic board.

The limitations of Rankine-Hugoniot jump conditions for estimating infall velocity during a minor galaxy cluster merger. (2023)
Thesis
Huntley, M. L.-R. (2023). The limitations of Rankine-Hugoniot jump conditions for estimating infall velocity during a minor galaxy cluster merger. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4425365

Type Ia Supernova Nucleosynthesis: Metallicity-dependent Yields (2023)
Journal Article
Keegans, J. D., Pignatari, M., Stancliffe, R. J., Travaglio, C., Jones, S., Gibson, B. K., …Few, G. (2023). Type Ia Supernova Nucleosynthesis: Metallicity-dependent Yields. Astrophysical Journal Supplement, 268(1), Article 8. https://doi.org/10.3847/1538-4365/ace102

Type Ia supernova explosions (SN Ia) are fundamental sources of elements for the chemical evolution of galaxies. They efficiently produce intermediate-mass (with Z between 11 and 20) and iron group elements - for example, about 70% of the solar iron... Read More about Type Ia Supernova Nucleosynthesis: Metallicity-dependent Yields.

On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation (2023)
Journal Article
Singh, A., Park, C., Choi, E., Kim, J., Jun, H., Gibson, B. K., …Snaith, O. (2023). On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation. The Astrophysical journal, 953(1), Article 64. https://doi.org/10.3847/1538-4357/acdd6b

We use the Horizon Run 5 cosmological simulation to study the effect of galaxy intrinsic properties and the local environment on active galactic nuclei (AGNs) characterized by their threshold of the accretion rate. We select galaxies in the stellar m... Read More about On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation.

The chemical evolution of the solar neighbourhood for planet-hosting stars (2023)
Journal Article
Pignatari, M., Trueman, T. C., Womack, K. A., Gibson, B. K., Côte, B., Turrini, D., …Lugaro, M. (2023). The chemical evolution of the solar neighbourhood for planet-hosting stars. Monthly notices of the Royal Astronomical Society, 524(4), 6295-6330. https://doi.org/10.1093/mnras/stad2167

Theoretical physical-chemical models for the formation of planetary systems depend on data quality for the Sun's composition, that of stars in the solar neighbourhood, and of the estimated 'pristine' compositions for stellar systems. The effective sc... Read More about The chemical evolution of the solar neighbourhood for planet-hosting stars.

Modelling the Chemical Evolution of the Milky Way: Short-lived Radioactive Isotopes from AGB Stars and the impact of SNe Ia (2023)
Thesis
Trueman, T. (2023). Modelling the Chemical Evolution of the Milky Way: Short-lived Radioactive Isotopes from AGB Stars and the impact of SNe Ia. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4366004

Inhomogeneous Galactic chemical evolution: modelling ultra-faint dwarf galaxies of the Large Magellanic Cloud (2023)
Journal Article
Alexander, R. K., Vincenzo, F., Ji, A. P., Richstein, H., Jordan, C. J., & Gibson, B. K. (2023). Inhomogeneous Galactic chemical evolution: modelling ultra-faint dwarf galaxies of the Large Magellanic Cloud. Monthly notices of the Royal Astronomical Society, 522(4), 5415-5433. https://doi.org/10.1093/mnras/stad1312

Ultra-faint dwarf galaxies (UFDs) are among the oldest and most metal-poor galaxies in the cosmos, observed to contain no gas and a high dark matter mass fraction. Understanding the chemical abundance dispersion in such extreme environments could she... Read More about Inhomogeneous Galactic chemical evolution: modelling ultra-faint dwarf galaxies of the Large Magellanic Cloud.

Chemical evolution of fluorine in the Milky Way (2022)
Journal Article
Womack, K., Vincenzo, F., Gibson, B., Côté, B., Pignatari, M., Brinkman, H. E., …Karakas, A. (2023). Chemical evolution of fluorine in the Milky Way. Monthly notices of the Royal Astronomical Society, 518(1), 1543-1556. https://doi.org/10.1093/mnras/stac3180

Fluorine has many different potential sites and channels of production, making narrowing down a dominant site of fluorine production particularly challenging. In this work, we investigate which sources are the dominant contributors to the galactic fl... Read More about Chemical evolution of fluorine in the Milky Way.

Horizons: nuclear astrophysics in the 2020s and beyond (2022)
Journal Article
Schatz, H., Becerril Reyes, A. D., Best, A., Brown, E. F., Chatziioannou, K., Chipps, K. A., …Pignatari, M. (2022). Horizons: nuclear astrophysics in the 2020s and beyond. Journal of Physics G: Nuclear and Particle Physics, 49(11), Article 110502. https://doi.org/10.1088/1361-6471/ac8890

Nuclear astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the chemical elements. This white paper summarizes progress and status of... Read More about Horizons: nuclear astrophysics in the 2020s and beyond.

Formation and Morphology of the First Galaxies in the Cosmic Morning (2022)
Journal Article
Park, C., Lee, J., Kim, J., Jeong, D., Pichon, C., Gibson, B. K., …Few, C. G. (2022). Formation and Morphology of the First Galaxies in the Cosmic Morning. The Astrophysical journal, 937(1), https://doi.org/10.3847/1538-4357/ac85b5

We investigate the formation and morphological evolution of the first galaxies in the cosmic morning (10 ≳ z ≳ 4) using the Horizon Run 5 (HR5) simulation. For galaxies above the stellar mass M ⋆ , min = 2 × 10 9 M ⊙ , we classify them into disk, sph... Read More about Formation and Morphology of the First Galaxies in the Cosmic Morning.

Dwarf galaxies with AGN and their environments in observations and simulations (2022)
Thesis
Kristensen, M. T. (2022). Dwarf galaxies with AGN and their environments in observations and simulations. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4224649

This thesis is a study of dwarf galaxies with active galactic nucleis (AGN) characteristics, their environments, and identification of them in both observations and simulations. More specifically, it attempts to answer the questions of what environme... Read More about Dwarf galaxies with AGN and their environments in observations and simulations.

A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics (2022)
Journal Article
Cross, T. M., Benoit, D. M., Pignatari, M., & Gibson, B. K. (2022). A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics. The Astrophysical journal, 925(1), Article 57. https://doi.org/10.3847/1538-4357/ac3976

This work presents the first steps to modeling synthetic rovibrational spectra for all molecules of astrophysical interest using a new approach implemented in the Prometheus code. The goal is to create a new comprehensive source of first-principles m... Read More about A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics.

Radioactive nuclei in the early Solar system: analysis of the 15 isotopes produced by core-collapse supernovae (2021)
Journal Article
Lawson, T. V., Pignatari, M., Stancliffe, R. J., Den Hartogh, J., Jones, S., Fryer, C. L., …Lugaro, M. (2022). Radioactive nuclei in the early Solar system: analysis of the 15 isotopes produced by core-collapse supernovae. Monthly notices of the Royal Astronomical Society, 511(1), 886-902. https://doi.org/10.1093/mnras/stab3684

Short-lived radioactive isotopes (SLRs) with half-lives between 0.1 and 100 Myr can be used to probe the origin of the Solar system. In this work, we examine the core-collapse supernovae production of the 15 SLRs produced: 26Al, 36Cl, 41Ca, 53Mn, 60F... Read More about Radioactive nuclei in the early Solar system: analysis of the 15 isotopes produced by core-collapse supernovae.

Project ThaiPASS: international outreach blending astronomy and Python (2021)
Journal Article
Keegans, J. D., Stancliffe, R. J., Bilton, L. E., Cashmore, C. R., Gibson, B. K., Kristensen, M. T., Lawson, T. V., Pignatari, M., Vaezzadeh, I., Côté, B., & Chongchitnan, S. (2021). Project ThaiPASS: international outreach blending astronomy and Python. Physics Education, 56(3), Article 035001. https://doi.org/10.1088/1361-6552/abdae7

We present our outreach program, the Thailand–UK Python+Astronomy Summer School (ThaiPASS), a collaborative project comprising UK and Thai institutions and assess its impact and possible application to schools in the United Kingdom. Since its incepti... Read More about Project ThaiPASS: international outreach blending astronomy and Python.

The horizon run 5 cosmological hydrodynamical simulation: probing galaxy formation from kilo- to gigaparsec scales (2021)
Journal Article
Lee, J., Shin, J., Snaith, O. N., Kim, Y., Few, C. G., Devriendt, J., Dubois, Y., Cox, L. M., Hong, S. E., Kwon, O. K., Park, C., Pichon, C., Kim, J., Gibson, B. K., & Park, C. (2021). The horizon run 5 cosmological hydrodynamical simulation: probing galaxy formation from kilo- to gigaparsec scales. The Astrophysical journal, 908(1), Article 11. https://doi.org/10.3847/1538-4357/abd08b

Horizon Run 5 (HR5) is a cosmological hydrodynamical simulation that captures the properties of the universe on a Gpc scale while achieving a resolution of 1 kpc. Inside the simulation box, we zoom in on a high-resolution cuboid region with a volume... Read More about The horizon run 5 cosmological hydrodynamical simulation: probing galaxy formation from kilo- to gigaparsec scales.

The RAdial Velocity Experiment (RAVE): Parameterisation of RAVE spectra based on convolutional neural networks (2020)
Journal Article
Guiglion, G., Matijevič, G., Queiroz, A. B., Valentini, M., Steinmetz, M., Chiappini, C., Grebel, E. K., McMillan, P. J., Kordopatis, G., Kunder, A., Zwitter, T., Khalatyan, A., Anders, F., Enke, H., Minchev, I., Monari, G., Wyse, R. F., Bienaymé, O., Bland-Hawthorn, J., Gibson, B. K., …Siebert, A. (2020). The RAdial Velocity Experiment (RAVE): Parameterisation of RAVE spectra based on convolutional neural networks. Astronomy and Astrophysics, 644, Article A168. https://doi.org/10.1051/0004-6361/202038271

© ESO 2020. Context Data-driven methods play an increasingly important role in the field of astrophysics In the context of large spectroscopic surveys of stars, data-driven methods are key in deducing physical parameters for millions of spectra in a... Read More about The RAdial Velocity Experiment (RAVE): Parameterisation of RAVE spectra based on convolutional neural networks.

All Outputs (122)