All Outputs (545)

Quasar lenses and pairs in the VST-ATLAS and Gaia (2017)
Journal Article
Agnello, A., Schechter, P., Morgan, N., Treu, T., Grillo, C., Malesani, D., …Shanks, T. (2018). Quasar lenses and pairs in the VST-ATLAS and Gaia. Monthly Notices of the Royal Astronomical Society, 475(2), 2086-2096. https://doi.org/10.1093/mnras/stx3226

We report on discovery results from a quasar lens search in the ATLAS-DR3 public footprint. Spectroscopic follow-up campaigns, conducted at the 2.6 m Nordic Optical Telescope (La Palma) and 3.6 m New Technology Telescope (La Silla) in 2016, yielded s... Read More about Quasar lenses and pairs in the VST-ATLAS and Gaia.

Equivalence of cosmological observables in conformally related scalar tensor theories (2017)
Journal Article
Rondeau, F., & Li, B. (2017). Equivalence of cosmological observables in conformally related scalar tensor theories. Physical Review D, 96(12), Article 124009. https://doi.org/10.1103/physrevd.96.124009

Scalar tensor theories can be expressed in different frames, such as the commonly used Einstein and Jordan frames, and it is generally accepted that cosmological observables are the same in these frames. We revisit this by making a detailed side-by-s... Read More about Equivalence of cosmological observables in conformally related scalar tensor theories.

Collider Probes of Axion-Like Particles (2017)
Journal Article
Bauer, M., Neubert, M., & Thamm, A. (2017). Collider Probes of Axion-Like Particles. Journal of High Energy Physics, 2017(12), Article 044. https://doi.org/10.1007/jhep12%282017%29044

Axion-like particles (ALPs), which are gauge-singlets under the Standard Model (SM), appear in many well-motivated extensions of the SM. Describing the interactions of ALPs with SM fields by means of an effective Lagrangian, we discuss ALP decays int... Read More about Collider Probes of Axion-Like Particles.

ElecSus: Extension to arbitrary geometry magneto-optics (2017)
Journal Article
Keaveney, J., Adams, C. S., & Hughes, I. G. (2017). ElecSus: Extension to arbitrary geometry magneto-optics. Computer Physics Communications, 224, 311-324. https://doi.org/10.1016/j.cpc.2017.12.001

We present a major update to ElecSus, a computer program and underlying model to calculate the electric susceptibility of an alkali-metal atomic vapour. Knowledge of the electric susceptibility of a medium is essential to predict its absorptive and d... Read More about ElecSus: Extension to arbitrary geometry magneto-optics.

Mineral Surface Chemistry Control for Origin of Prebiotic Peptides (2017)
Journal Article
Erastova, V., Degiacomi, M. T., Fraser, D., & Greenwell, H. C. (2017). Mineral Surface Chemistry Control for Origin of Prebiotic Peptides. Nature Communications, 8, Article 2033. https://doi.org/10.1038/s41467-017-02248-y

Some seventy years ago, John Desmond Bernal proposed a role for clays in the origin of life. While much research has since been dedicated to the study of silicate clays, layered double hydroxides, believed to be common on the early Earth, have receiv... Read More about Mineral Surface Chemistry Control for Origin of Prebiotic Peptides.

Magnetostriction-polarization coupling in multiferroic Mn2MnWO6 (2017)
Journal Article
Li, M., McCabe, E. E., Stephens, P. W., Croft, M., Collins, L., Kalinin, S. V., …Greenblatt, M. (2017). Magnetostriction-polarization coupling in multiferroic Mn2MnWO6. Nature Communications, 8(1), Article 2037. https://doi.org/10.1038/s41467-017-02003-3

Double corundum-related polar magnets are promising materials for multiferroic and magnetoelectric applications in spintronics. However, their design and synthesis is a challenge, and magnetoelectric coupling has only been observed in Ni3TeO6 among t... Read More about Magnetostriction-polarization coupling in multiferroic Mn2MnWO6.

ALMACAL – III. A combined ALMA and MUSE survey for neutral, molecular, and ionized gas in an H i-absorption-selected system (2017)
Journal Article
Klitsch, A., Péroux, C., Zwaan, M., Smail, I., Oteo, I., Biggs, A., …Swinbank, A. (2018). ALMACAL – III. A combined ALMA and MUSE survey for neutral, molecular, and ionized gas in an H i-absorption-selected system. Monthly Notices of the Royal Astronomical Society, 475(1), 492-507. https://doi.org/10.1093/mnras/stx3184

Studying the flow of baryons into and out of galaxies is an important part of understanding the evolution of galaxies over time. We present a detailed case study of the environment around an intervening Ly α absorption line system at zabs = 0.633, se... Read More about ALMACAL – III. A combined ALMA and MUSE survey for neutral, molecular, and ionized gas in an H i-absorption-selected system.

xCOLD GASS: The Complete IRAM 30 m Legacy Survey of Molecular Gas for Galaxy Evolution Studies (2017)
Journal Article
Saintonge, A., Catinella, B., Tacconi, L. J., Kauffmann, G., Genzel, R., Cortese, L., …Roberts-Borsani, G. W. (2017). xCOLD GASS: The Complete IRAM 30 m Legacy Survey of Molecular Gas for Galaxy Evolution Studies. Astrophysical Journal Supplement, 233(2), Article 22. https://doi.org/10.3847/1538-4365/aa97e0

We introduce xCOLD GASS, a legacy survey providing a census of molecular gas in the local universe. Building on the original COLD GASS survey, we present here the full sample of 532 galaxies with CO (1–0) measurements from the IRAM 30 m telescope. Th... Read More about xCOLD GASS: The Complete IRAM 30 m Legacy Survey of Molecular Gas for Galaxy Evolution Studies.

Identifying the subtle signatures of feedback from distant AGN using ALMA observations and the EAGLE hydrodynamical simulations (2017)
Journal Article
Scholtz, J., Alexander, D., Harrison, C., Rosario, D., McAlpine, S., Mullaney, J., …Swinbank, A. (2018). Identifying the subtle signatures of feedback from distant AGN using ALMA observations and the EAGLE hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 475(1), 1288-1305. https://doi.org/10.1093/mnras/stx3177

We present sensitive 870 μm continuum measurements from our ALMA programmes of 114 X-ray selected active galactic nuclei (AGN) in the Chandra Deep Field-South and Cosmic Evolution Survey fields. We use these observations in combination with data from... Read More about Identifying the subtle signatures of feedback from distant AGN using ALMA observations and the EAGLE hydrodynamical simulations.

The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy 1H 0323+342 (2017)
Journal Article
Kynoch, D., Landt, H., Ward, M. J., Done, C., Gardner, E., Boisson, C., …Pereira Santaella, M. (2018). The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy 1H 0323+342. Monthly Notices of the Royal Astronomical Society, 475(1), 404-423. https://doi.org/10.1093/mnras/stx3161

The detection of several radio-loud narrow-line Seyfert 1 (NLS1) galaxies by the Fermi Gamma-Ray Space Telescope hints at the existence of a rare, new class of γ-ray emitting active galactic nuclei with low black hole masses. Like flat spectrum radio... Read More about The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy 1H 0323+342.

Mystery solved: discovery of extended radio emission in the merging galaxy cluster Abell 2146 (2017)
Journal Article
Hlavacek-Larrondo, J., Gendron-Marsolais, M., Fecteau-Beaucage, D., van Weeren, R., Russell, H., Edge, A., …Taylor, G. (2018). Mystery solved: discovery of extended radio emission in the merging galaxy cluster Abell 2146. Monthly Notices of the Royal Astronomical Society, 475(2), 2743-2753. https://doi.org/10.1093/mnras/stx3160

Abell 2146 (z = 0.232) is a massive galaxy cluster currently undergoing a spectacular merger in the plane of the sky with a bullet-like morphology. It was the first system in which both the bow and upstream shock fronts were detected at X-ray wavelen... Read More about Mystery solved: discovery of extended radio emission in the merging galaxy cluster Abell 2146.

Carbonate and silicate biomineralization in a hypersaline microbial mat (Mesaieed sabkha, Qatar): Roles of bacteria, extracellular polymeric substances and viruses (2017)
Journal Article
Perri, E., Tucker, M. E., Słowakiewicz, M., Whitaker, F., Bowen, L., & Perrotta, I. D. (2018). Carbonate and silicate biomineralization in a hypersaline microbial mat (Mesaieed sabkha, Qatar): Roles of bacteria, extracellular polymeric substances and viruses. Sedimentology, 65(4), 1213-1245. https://doi.org/10.1111/sed.12419

In a modern peritidal microbial mat from Qatar, both biomediated carbonates and Mg‐rich clay minerals (palygorskite) were identified. The mat, ca 5 cm thick, shows a clear lamination reflecting different microbial communities. The initial precipitate... Read More about Carbonate and silicate biomineralization in a hypersaline microbial mat (Mesaieed sabkha, Qatar): Roles of bacteria, extracellular polymeric substances and viruses.

The Time-domain Spectroscopic Survey: Target Selection for Repeat Spectroscopy (2017)
Journal Article
MacLeod, C., Green, P., Anderson, S., Eracleous, M., Ruan, J., Runnoe, J., …Waters, C. (2017). The Time-domain Spectroscopic Survey: Target Selection for Repeat Spectroscopy. Astronomical Journal, 155(1), Article 6. https://doi.org/10.3847/1538-3881/aa99da

As astronomers increasingly exploit the information available in the time domain, spectroscopic variability in particular opens broad new channels of investigation. Here we describe the selection algorithms for all targets intended for repeat spectro... Read More about The Time-domain Spectroscopic Survey: Target Selection for Repeat Spectroscopy.

Crystal structure and anti-site boundary defect characterisation of Cu2ZnSnSe4 (2017)
Journal Article
Mendis, B., McKenna, K., Gurieva, G., Rumsey, M., & Schorr, S. (2018). Crystal structure and anti-site boundary defect characterisation of Cu2ZnSnSe4. Journal of Materials Chemistry A: materials for energy and sustainability, 6(1), 189-197. https://doi.org/10.1039/c7ta08263k

The crystal structure identification of the photovoltaic material Cu2ZnSnSe4 (CZTSe) is challenging due to the distinguishing feature between the two polymorphs, kesterite and stannite, being the arrangement of Cu and Zn ions. Here an energy dispersi... Read More about Crystal structure and anti-site boundary defect characterisation of Cu2ZnSnSe4.

Scientific Synergy between LSST and Euclid (2017)
Journal Article
Rhodes, J., Nichol, R. C., Aubourg, É., Bean, R., Boutigny, D., Bremer, M. N., …Linden, A. V. D. (2017). Scientific Synergy between LSST and Euclid. Astrophysical Journal Supplement, 233(2), Article 21. https://doi.org/10.3847/1538-4365/aa96b0

Euclid and the Large Synoptic Survey Telescope (LSST) are poised to dramatically change the astronomy landscape early in the next decade. The combination of high-cadence, deep, wide-field optical photometry from LSST with high-resolution, wide-field... Read More about Scientific Synergy between LSST and Euclid.

Electroweak Higgs production with HiggsPO at NLO QCD (2017)
Journal Article
Greljo, A., Isidori, G., Lindert, J. M., Marzocca, D., & Zhang, H. (2017). Electroweak Higgs production with HiggsPO at NLO QCD. The European Physical Journal C, 77(12), Article 838. https://doi.org/10.1140/epjc/s10052-017-5422-4

We present the HiggsPO UFO model for Monte Carlo event generation of electroweak VH and VBF Higgs production processes at NLO in QCD in the formalism of Higgs pseudo-observables (PO). We illustrate the use of this tool by studying the QCD corrections... Read More about Electroweak Higgs production with HiggsPO at NLO QCD.

Precise predictions for V+jets dark matter backgrounds (2017)
Journal Article
Lindert, J., Pozzorini, S., Boughezal, R., Campbell, J., Denner, A., Dittmaier, S., …Williams, C. (2017). Precise predictions for V+jets dark matter backgrounds. The European Physical Journal C, 77(12), Article 829. https://doi.org/10.1140/epjc/s10052-017-5389-1

High-energy jets recoiling against missing transverse energy (MET) are powerful probes of dark matter at the LHC. Searches based on large MET signatures require a precise control of the Z(νν¯)+Z(νν¯)+ jet background in the signal region. This can be... Read More about Precise predictions for V+jets dark matter backgrounds.

Reducing biases on H0 measurements using strong lensing and galaxy dynamics: results from the eagle simulation (2017)
Journal Article
Tagore, A., Barnes, D., Jackson, N., Kay, S., Schaller, M., Schaye, J., & Theuns, T. (2018). Reducing biases on H0 measurements using strong lensing and galaxy dynamics: results from the eagle simulation. Monthly Notices of the Royal Astronomical Society, 474(3), 3403-3422. https://doi.org/10.1093/mnras/stx2965

Cosmological parameter constraints from observations of time-delay lenses are becoming increasingly precise. However, there may be significant bias and scatter in these measurements due to, among other things, the so-called mass-sheet degeneracy. To... Read More about Reducing biases on H0 measurements using strong lensing and galaxy dynamics: results from the eagle simulation.

The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface (2017)
Journal Article
Rowan-Robinson, R., Stashkevich, A., Roussigne, Y., Belmeguenai, M., Cherif, S., Thiaville, A., …Atkinson, D. (2017). The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface. Scientific Reports, 7(1), Article 16835. https://doi.org/10.1038/s41598-017-17137-z

The Dzyaloshinskii-Moriya interaction has been shown to stabilise Nèel domain walls in magnetic thin films, allowing high domain wall velocities driven by spin current effects. The interfacial Dzyaloshinskii-Moriya interaction (IDMI) occurs at the in... Read More about The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface.

The KMOS Cluster Survey (KCS). III. Fundamental Plane of Cluster Galaxies at z ≃ 1.80 in JKCS 041 (2017)
Journal Article
Prichard, L. J., Davies, R. L., Beifiori, A., Chan, J. C., Cappellari, M., Houghton, R. C., …Wegner, M. (2017). The KMOS Cluster Survey (KCS). III. Fundamental Plane of Cluster Galaxies at z ≃ 1.80 in JKCS 041. Astrophysical Journal, 850(2), Article 203. https://doi.org/10.3847/1538-4357/aa96a6

We present data for 16 galaxies in the overdensity JKCS 041 at $z\simeq 1.80$ as part of the K-band Multi-Object Spectrograph (KMOS) Cluster Survey (KCS). With 20 hr integrations, we have obtained deep absorption-line spectra from which we derived ve... Read More about The KMOS Cluster Survey (KCS). III. Fundamental Plane of Cluster Galaxies at z ≃ 1.80 in JKCS 041.