Outputs (286)

Evaluation of the N 13 (α,p) O 16 thermonuclear reaction rate and its impact on the isotopic composition of supernova grains (2020)
Journal Article
Meyer, A., De Séréville, N., Laird, A. M., Hammache, F., Longland, R., Lawson, T., Pignatari, M., Audouin, L., Beaumel, D., Fortier, S., Kiener, J., Lefebvre-Schuhl, A., Pellegriti, M. G., Stanoiu, M., & Tatischeff, V. (2020). Evaluation of the N 13 (α,p) O 16 thermonuclear reaction rate and its impact on the isotopic composition of supernova grains. Physical Review C, 102(3), Article 035803. https://doi.org/10.1103/PhysRevC.102.035803

Background: It has been recently suggested that hydrogen ingestion into the helium shell of massive stars could lead to high C13 and N15 excesses when the shock of a core-collapse supernova passes through its helium shell. This prediction questions t... Read More about Evaluation of the N 13 (α,p) O 16 thermonuclear reaction rate and its impact on the isotopic composition of supernova grains.

GASP. XXI. Star Formation Rates in the Tails of Galaxies Undergoing Ram Pressure Stripping (2020)
Journal Article
Gullieuszik, M., Poggianti, B. M., McGee, S. L., Moretti, A., Vulcani, B., Tonnesen, S., Roediger, E., Jaffé, Y. L., Fritz, J., Franchetto, A., Omizzolo, A., Bettoni, D., Radovich, M., & Wolter, A. (2020). GASP. XXI. Star Formation Rates in the Tails of Galaxies Undergoing Ram Pressure Stripping. The Astrophysical journal, 899(1), Article 13. https://doi.org/10.3847/1538-4357/aba3cb

© 2020. The American Astronomical Society. All rights reserved.. Using MUSE observations from the GASP survey, we study 54 galaxies undergoing ram pressure stripping (RPS) and spanning a wide range in galaxy mass and host cluster mass. We use this ri... Read More about GASP. XXI. Star Formation Rates in the Tails of Galaxies Undergoing Ram Pressure Stripping.

Origin of Large Meteoritic SiC Stardust Grains in Metal-rich AGB Stars (2020)
Journal Article
Dell'Agli, F., D'Orazi, V., Schönb chler, M., Lugaro, M., Cseh, B., Világos, B., Karakas, A. I., Ventura, P., Dell’Agli, F., Trappitsch, R., Hampel, M., D’Orazi, V., Pereira, C. B., Tagliente, G., Szabó, G. M., Pignatari, M., Battino, U., Tattersall, A., Ek, M., Schönbächler, M., …Nittler, L. R. (2020). Origin of Large Meteoritic SiC Stardust Grains in Metal-rich AGB Stars. The Astrophysical journal, 898(2), Article 96. https://doi.org/10.3847/1538-4357/ab9e74

Stardust grains that originated in ancient stars and supernovae are recovered from meteorites and carry the detailed composition of their astronomical sites of origin. We present evidence that the majority of large (μm-sized) meteoritic silicon carbi... Read More about Origin of Large Meteoritic SiC Stardust Grains in Metal-rich AGB Stars.

Galaxy and Mass Assembly (GAMA): Demonstrating the Power of WISE in the Study of Galaxy Groups to z < 0.1 (2020)
Journal Article
Cluver, M. E., Jarrett, T. H., Taylor, E. N., Hopkins, A. M., Brough, S., Casura, S., Holwerda, B. W., Liske, J., Pimbblet, K. A., & Wright, A. H. (2020). Galaxy and Mass Assembly (GAMA): Demonstrating the Power of WISE in the Study of Galaxy Groups to z < 0.1. The Astrophysical journal, 898(1), Article 20. https://doi.org/10.3847/1538-4357/ab9cb8

© 2020. The American Astronomical Society. All rights reserved. Combining high-fidelity group characterization from the Galaxy and Mass Assembly survey and source-tailored z < 0.1 photometry from the Wide-Field Infrared Survey Explorer (WISE) survey,... Read More about Galaxy and Mass Assembly (GAMA): Demonstrating the Power of WISE in the Study of Galaxy Groups to z < 0.1.

The ram pressure stripped radio tails of galaxies in the Coma cluster (2020)
Journal Article
Chen, H., Sun, M., Yagi, M., Bravo-Alfaro, H., Brinks, E., Kenney, J., Combes, F., Sivanandam, S., Jachym, P., Fossati, M., Gavazzi, G., Boselli, A., Nulsen, P., Sarazin, C., Ge, C., Yoshida, M., & Roediger, E. (2020). The ram pressure stripped radio tails of galaxies in the Coma cluster. Monthly notices of the Royal Astronomical Society, 496(4), 4654-4673. https://doi.org/10.1093/mnras/staa1868

Previous studies have revealed a population of galaxies in galaxy clusters with ram pressure stripped (RPS) tails of gas and embedded young stars. We observed 1.4 GHz continuum and H I emission with the Very Large Array in its B-configuration in two... Read More about The ram pressure stripped radio tails of galaxies in the Coma cluster.

Environments of dwarf galaxies with optical AGN characteristics (2020)
Journal Article
Kristensen, M., Pimbblet, K., & Penny, S. (2020). Environments of dwarf galaxies with optical AGN characteristics. Monthly notices of the Royal Astronomical Society, 496(3), 2577-2590. https://doi.org/10.1093/mnras/staa1719

© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This study aims to explore the relation between dwarf galaxies (M∗ ≤ 5 × 109 M·) with active galactic nuclei (AGNs) and their environment by compar... Read More about Environments of dwarf galaxies with optical AGN characteristics.

The first microsolvation step for furans : new experiments and benchmarking strategies (2020)
Journal Article
Gottschalk, H. C., Poblotzki, A., Fatima, M., Obenchain, D. A., Pérez, C., Antony, J., Auer, A. A., Baptista, L., Benoit, D. M., Bistoni, G., Bohle, F., Dahmani, R., Firaha, D., Grimme, S., Hansen, A., Harding, M. E., Hochlaf, M., Holzer, C., Jansen, G., Klopper, W., …Schnell, M. (2020). The first microsolvation step for furans : new experiments and benchmarking strategies. The Journal of chemical physics, 152(16), 164303. https://doi.org/10.1063/5.0004465

The site-specific first microsolvation step of furan and some of its derivatives with methanol is explored to benchmark the ability of quantum-chemical methods to describe the structure, energetics, and vibrational spectrum at low temperature. Infrar... Read More about The first microsolvation step for furans : new experiments and benchmarking strategies.

Explaining the chemical trajectories of accreted and in-situ halo stars of the Milky Way (2020)
Journal Article
Brook, C. B., Kawata, D., Gibson, B. K., Gallart, C., & Vicente, A. (2020). Explaining the chemical trajectories of accreted and in-situ halo stars of the Milky Way. Monthly notices of the Royal Astronomical Society, 495(3), 2645-2651. https://doi.org/10.1093/mnras/staa992

© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. The Milky Way underwent its last significant merger ten billion years ago, when the Gaia-Enceladus-Sausage (GES) was accreted. Accreted GES stars a... Read More about Explaining the chemical trajectories of accreted and in-situ halo stars of the Milky Way.

FLASH early science - Discovery of an intervening H I 21-cm absorber from an ASKAP survey of the GAMA 23 field (2020)
Journal Article
Allison, J. R., Sadler, E. M., Bellstedt, S., Davies, L. J., Driver, S. P., Ellison, S. L., Huynh, M., Kapinska, A. D., Mahony, E. K., Moss, V. A., Robotham, A. S., Whiting, M. T., Curran, S. J., Darling, J., Hotan, A. W., Hunstead, R. W., Koribalski, B. S., Lagos, C. D., Pettini, M., Pimbblet, K. A., & Voronkov, M. A. (2020). FLASH early science - Discovery of an intervening H I 21-cm absorber from an ASKAP survey of the GAMA 23 field. Monthly notices of the Royal Astronomical Society, 494(3), 3627-3641. https://doi.org/10.1093/MNRAS/STAA949

© 2020 The Author(s) We present early science results from the First Large Absorption Survey in H I (FLASH), a spectroscopically blind survey for 21-cm absorption lines in cold hydrogen (H I) gas at cosmological distances using the Australian Square... Read More about FLASH early science - Discovery of an intervening H I 21-cm absorber from an ASKAP survey of the GAMA 23 field.

Chromium Nucleosynthesis and Silicon-Carbon Shell Mergers in Massive Stars (2020)
Journal Article
Côté, B., Jones, S., Herwig, F., & Pignatari, M. (2020). Chromium Nucleosynthesis and Silicon-Carbon Shell Mergers in Massive Stars. The Astrophysical journal, 892(1), Article 57. https://doi.org/10.3847/1538-4357/ab77ac

We analyze the production of the element Cr in galactic chemical evolution (GCE) models using the NuGrid nucleosynthesis yields set. We show that the unusually large [Cr/Fe] abundance at [Fe/H] ≈ 0 reported by previous studies using those yields and... Read More about Chromium Nucleosynthesis and Silicon-Carbon Shell Mergers in Massive Stars.

The Nucleosynthetic Yields of Core-collapse Supernovae: Prospects for the Next Generation of Gamma-Ray Astronomy (2020)
Journal Article
Andrews, S., Fryer, C., Even, W., Jones, S., & Pignatari, M. (2020). The Nucleosynthetic Yields of Core-collapse Supernovae: Prospects for the Next Generation of Gamma-Ray Astronomy. The Astrophysical journal, 890(1), Article 35. https://doi.org/10.3847/1538-4357/ab64f8

Though the neutrino-driven convection model for the core-collapse explosion mechanism has received strong support in recent years, there are still many uncertainties in the explosion parameters—such as explosion energy, remnant mass, and end-of-life... Read More about The Nucleosynthetic Yields of Core-collapse Supernovae: Prospects for the Next Generation of Gamma-Ray Astronomy.

GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation? (2020)
Journal Article
Moretti, A., Paladino, R., Poggianti, B. M., Serra, P., Roediger, E., Gullieuszik, M., Tomičić, N., Radovich, M., Vulcani, B., Jaffé, Y. L., Fritz, J., Bettoni, D., Ramatsoku, M., & Wolter, A. (2020). GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation?. The Astrophysical journal, 889(1), https://doi.org/10.3847/1538-4357/ab616a

Within the GASP survey, aimed at studying the effect of ram pressure stripping on star formation quenching in cluster galaxies, we analyze here ALMA observations of the jellyfish galaxy JW100. We find an unexpected large amount of molecular gas (∼2.5... Read More about GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation?.

Galaxy and Mass Assembly (GAMA): Defining passive galaxy samples and searching for the UV upturn (2019)
Journal Article
Phillipps, S., Ali, S. S., Bremer, M. N., de Propris, R., Sansom, A. E., Cluver, M. E., Alpaslan, M., Brough, S., Brown, M. J., Davies, L. J., Driver, S. P., Grootes, M. W., Holwerda, B. W., Hopkins, A. M., James, P. A., Pimbblet, K., Robotham, A. S., Taylor, E. N., & Wang, L. (2020). Galaxy and Mass Assembly (GAMA): Defining passive galaxy samples and searching for the UV upturn. Monthly notices of the Royal Astronomical Society, 492(2), 2128-2139. https://doi.org/10.1093/mnras/stz3552

© 2019 The Author(s) We use data from the GAMA and GALEX surveys to demonstrate that the UV upturn, an unexpected excess of ultraviolet flux from a hot stellar component, seen in the spectra of many early-type galaxies, arises from processes internal... Read More about Galaxy and Mass Assembly (GAMA): Defining passive galaxy samples and searching for the UV upturn.

Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios (2019)
Journal Article
Hoppe, P., Stancliffe, R. J., Pignatari, M., & Amari, S. (2019). Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios. The Astrophysical journal, 887(1), 10. https://doi.org/10.3847/1538-4357/ab521c

We report high-resolution C, N, Al, Si, and S isotope data of 38 presolar SiC grains of type AB. Seventeen of these grains are of subtype AB1 (14N/15N < 440 = solar) and 20 of subtype AB2 (14N/15N ≥ 440), previously proposed to be mainly from superno... Read More about Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios.

The rotational profiles of cluster galaxies (2019)
Journal Article
Bilton, L. E., Hunt, M., Pimbblet, K. A., & Roediger, E. (2019). The rotational profiles of cluster galaxies. Monthly notices of the Royal Astronomical Society, 490(4), 5017-5032. https://doi.org/10.1093/mnras/stz2927

© 2019 The Author(s) We compile two samples of cluster galaxies with complimentary hydrodynamic and N-body analysis using FLASH code to ascertain how their differing populations drive their rotational profiles and to better understand their dynamical... Read More about The rotational profiles of cluster galaxies.

Saxitoxin and tetrodotoxin bioavailability increases in future oceans (2019)
Journal Article
Roggatz, C. C., Fletcher, N., Benoit, D. M., Algar, A. C., Doroff, A., Wright, B., Wollenberg Valero, K. C., & Hardege, J. D. (2019). Saxitoxin and tetrodotoxin bioavailability increases in future oceans. Nature Climate Change, 9(11), 840-844. https://doi.org/10.1038/s41558-019-0589-3

© 2019, The Author(s), under exclusive licence to Springer Nature Limited. Increasing atmospheric CO2 levels are largely absorbed by the ocean, decreasing surface water pH1. In combination with increasing ocean temperatures, these changes have been i... Read More about Saxitoxin and tetrodotoxin bioavailability increases in future oceans.

ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy (2019)
Journal Article
Jáchym, P., Kenney, J. D., Sun, M., Combes, F., Cortese, L., Scott, T. C., Sivanandam, S., Brinks, E., Roediger, E., Palouš, J., & Fumagalli, M. (2019). ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy. The Astrophysical journal, 883(2), Article 145. https://doi.org/10.3847/1538-4357/ab3e6c

© 2019 The American Astronomical Society. All rights reserved. We present the first high-resolution map of the cold molecular gas distribution as traced by CO(2-1) emission with ALMA in a long ram pressure stripped tail. The Norma cluster galaxy ESO... Read More about ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy.

Intramolecular stretching vibrational states and frequency shifts of (H2)2 confined inside the large cage of clathrate hydrate from an eight-dimensional quantum treatment using small basis sets (2019)
Journal Article
Felker, P. M., Lauvergnat, D., Scribano, Y., Benoit, D. M., & Bačić, Z. (2019). Intramolecular stretching vibrational states and frequency shifts of (H2)2 confined inside the large cage of clathrate hydrate from an eight-dimensional quantum treatment using small basis sets. The Journal of chemical physics, 151(12), Article 124311. https://doi.org/10.1063/1.5124051

We report the results of calculations pertaining to the HH intramolecular stretching fundamentals of (p-H2)2 encapsulated in the large cage of structure II clathrate hydrate. The eight-dimensional (8D) quantum treatment assumes rotationless (j = 0) H... Read More about Intramolecular stretching vibrational states and frequency shifts of (H2)2 confined inside the large cage of clathrate hydrate from an eight-dimensional quantum treatment using small basis sets.

Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 Surveys (2019)
Journal Article
Birko, D., Zwitter, T., Grebel, E. K., Parker, Q. A., Kordopatis, G., Bland-Hawthorn, J., Freeman, K., Guiglion, G., Gibson, B. K., Navarro, J., Reid, W., Seabroke, G. M., Steinmetz, M., & Watson, F. (in press). Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 Surveys. Astronomical Journal, 158(4), Article 155. https://doi.org/10.3847/1538-3881/ab3cc1

The combination of the final version of the Radial Velocity Experiment (RAVE) spectroscopic survey data release 6 with radial velocities (RVs) and astrometry from Gaia DR2 allows us to identify and create a catalog of single-lined binary star candida... Read More about Single-lined Spectroscopic Binary Star Candidates from a Combination of the RAVE and Gaia DR2 Surveys.

The s process in rotating low-mass AGB stars: Nucleosynthesis calculations in models matching asteroseismic constraints (2019)
Journal Article
Den Hartogh, J. W., Hirschi, R., Lugaro, M., Doherty, C. L., Battino, U., Herwig, F., Pignatari, M., & Eggenberger, P. (2019). The s process in rotating low-mass AGB stars: Nucleosynthesis calculations in models matching asteroseismic constraints. Astronomy and Astrophysics, 629, Article A123. https://doi.org/10.1051/0004-6361/201935476

Aims. We investigate the s-process during the AGB phase of stellar models whose cores are enforced to rotate at rates consistent with asteroseismology observations of their progenitors and successors. Methods. We calculated new 2 M⊙ , Z  =  0.01 mode... Read More about The s process in rotating low-mass AGB stars: Nucleosynthesis calculations in models matching asteroseismic constraints.