All Outputs (540)

Effects of chaos on the detectability of stellar streams (2019)
Journal Article
Mestre, M., Llinares, C., & Carpintero, D. D. (2020). Effects of chaos on the detectability of stellar streams. Monthly Notices of the Royal Astronomical Society, 492(3), 4398-4408. https://doi.org/10.1093/mnras/stz3505

Observations show that stellar streams originating in satellite dwarf galaxies are frequent in the Universe. While such events are predicted by theory, it is not clear how many of the streams that are generated are washed out afterwards to the point... Read More about Effects of chaos on the detectability of stellar streams.

Finding spin glass ground states using quantum walks (2019)
Journal Article
Callison, A., Chancellor, N., Mintert, F., & Kendon, V. (2019). Finding spin glass ground states using quantum walks. New Journal of Physics, 21, Article 123022. https://doi.org/10.1088/1367-2630/ab5ca2

Quantum computation using continuous-time evolution under a natural hardware Hamiltonian is a promising near- and mid-term direction toward powerful quantum computing hardware. We investigate the performance of continuous-time quantum walks as a tool... Read More about Finding spin glass ground states using quantum walks.

Quasisimultons in Thermal Atomic Vapors (2019)
Journal Article
Ogden, T. P., Whittaker, K., Keaveney, J., Wrathmall, S., Adams, C., & Potvliege, R. (2019). Quasisimultons in Thermal Atomic Vapors. Physical Review Letters, 123(24), Article 243604. https://doi.org/10.1103/physrevlett.123.243604

The propagation of two-color laser fields through optically thick atomic ensembles is studied. We demonstrate how the interaction between these two fields spawns the formation of copropagating, two-color solitonlike pulses akin to the simultons found... Read More about Quasisimultons in Thermal Atomic Vapors.

Characterization of the ground layer of turbulence at Paranal using a robotic SLODAR system (2019)
Journal Article
Butterley, T., Wilson, R., Sarazin, M., Dubbeldam, M., Osborn, J., & Clark, P. (2020). Characterization of the ground layer of turbulence at Paranal using a robotic SLODAR system. Monthly Notices of the Royal Astronomical Society, 492(1), 934-949. https://doi.org/10.1093/mnras/stz3498

We describe the implementation of a robotic SLODAR instrument at the Cerro Paranal observatory. The instrument measures the vertical profile of the optical atmospheric turbulence strength, in 8 resolution elements, to a maximum altitude ranging betwe... Read More about Characterization of the ground layer of turbulence at Paranal using a robotic SLODAR system.

The ACCELERATION programme: I. Cosmology with the redshift drift★ (2019)
Journal Article
Cooke, R. (2020). The ACCELERATION programme: I. Cosmology with the redshift drift★. Monthly Notices of the Royal Astronomical Society, 492(2), 2044-2057. https://doi.org/10.1093/mnras/stz3465

Detecting the change of a cosmological object’s redshift due to the time evolution of the Universal expansion rate is an ambitious experiment that will be attempted with future telescope facilities. In this paper, we describe the ACCELERATION program... Read More about The ACCELERATION programme: I. Cosmology with the redshift drift★.

Discovery of a Powerful >1061 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 (2019)
Journal Article
Calzadilla, M. S., McDonald, M., Bayliss, M., Benson, B. A., Bleem, L. E., Brodwin, M., …Reichardt, C. L. (2019). Discovery of a Powerful >1061 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300. Astrophysical Journal Letters, 887(1), Article L17. https://doi.org/10.3847/2041-8213/ab5b07

We present ~103 ks of Chandra observations of the galaxy cluster SPT-CLJ0528-5300 (SPT0528, z = 0.768). This cluster harbors the most radio-loud (L 1.4GHz = 1.01 × 1033 erg s−1 Hz−1) central active galactic nucleus (AGN) of any cluster in the South P... Read More about Discovery of a Powerful >1061 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300.

The Nature of Ionized Gas in the Milky Way Galactic Fountain (2019)
Journal Article
Werk, J. K., Rubin, K., Bish, H., Prochaska, J., Zheng, Y., O’Meara, J., …Deason, A. (2019). The Nature of Ionized Gas in the Milky Way Galactic Fountain. Astrophysical Journal, 887(1), Article 89. https://doi.org/10.3847/1538-4357/ab54cf

We address the spatial scale, ionization structure, mass, and metal content of gas at the Milky Way disk–halo interface detected as absorption in the foreground of seven closely spaced, high-latitude halo blue horizontal branch stars with heights z =... Read More about The Nature of Ionized Gas in the Milky Way Galactic Fountain.

The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn (2019)
Journal Article
Wang, L., Gies, D. R., Lester, K. V., Guo, Z., Matson, R. A., Peters, G. J., …Maxted, P. F. (2020). The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn. Astronomical Journal, 159(1), Article 4. https://doi.org/10.3847/1538-3881/ab52fa

EL CVn is the prototype of a class of eclipsing binaries that consist of an A- or F-type main-sequence star and a hot, low-mass, pre-He white dwarf (pre-He WD), the stripped down remains of the former mass donor. Here we present the first direct dete... Read More about The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn.

Physical Constraints from Near-infrared Fast Photometry of the Black Hole Transient GX 339–4 (2019)
Journal Article
Vincentelli, F., Casella, P., Petrucci, P., Maccarone, T., Russell, D., Uttley, P., …Tomsick, J. (2019). Physical Constraints from Near-infrared Fast Photometry of the Black Hole Transient GX 339–4. Astrophysical Journal Letters, 887(1), Article L19. https://doi.org/10.3847/2041-8213/ab5860

We present results from the first multi-epoch X-ray/IR fast-photometry campaign on the black hole transient GX 339–4, during its 2015 outburst decay. We studied the evolution of the power spectral densities finding strong differences between the two... Read More about Physical Constraints from Near-infrared Fast Photometry of the Black Hole Transient GX 339–4.

Simulating MOS science on the ELT: Lyα forest tomography (2019)
Journal Article
Japelj, J., Laigle, C., Puech, M., Pichon, C., Rahmani, H., Dubois, Y., …Yang, Y. (2019). Simulating MOS science on the ELT: Lyα forest tomography. Astronomy & Astrophysics, 632, https://doi.org/10.1051/0004-6361/201936048

Mapping the large-scale structure through cosmic time has numerous applications in studies of cosmology and galaxy evolution. At z ≳ 2, the structure can be traced by the neutral intergalactic medium (IGM) by way of observing the Lyα forest towards d... Read More about Simulating MOS science on the ELT: Lyα forest tomography.

Cosmological baryon transfer in the simba simulations (2019)
Journal Article
Borrow, J., Anglés-Alcázar, D., & Davé, R. (2020). Cosmological baryon transfer in the simba simulations. Monthly Notices of the Royal Astronomical Society, 491(4), 6102-6119. https://doi.org/10.1093/mnras/stz3428

We present a framework for characterizing the large-scale movement of baryons relative to dark matter in cosmological simulations, requiring only the initial conditions and final state of the simulation. This is performed using the spread metric that... Read More about Cosmological baryon transfer in the simba simulations.

Silica nanoparticles with thermally activated delayed fluorescence for live cell imaging (2019)
Journal Article
Crucho, C. I., Avó, J., Nobuyasu, R., N. Pinto, S., Fernandes, F., Lima, J. C., …Dias, F. B. (2020). Silica nanoparticles with thermally activated delayed fluorescence for live cell imaging. Materials Science and Engineering: C, 109, Article 110528. https://doi.org/10.1016/j.msec.2019.110528

Thermally activated delayed fluorescence (TADF) has revolutionized the field of organic light emitting diodes owing to the possibility of harvesting non-emissive triplet states and converting them in emissive singlet states. This mechanism generates... Read More about Silica nanoparticles with thermally activated delayed fluorescence for live cell imaging.

On the Prospect of Using the Maximum Circular Velocity of Halos to Encapsulate Assembly Bias in the Galaxy–Halo Connection (2019)
Journal Article
Zehavi, I., Kerby, S. E., Contreras, S., Jiménez, E., Padilla, N., & Baugh, C. M. (2019). On the Prospect of Using the Maximum Circular Velocity of Halos to Encapsulate Assembly Bias in the Galaxy–Halo Connection. Astrophysical Journal, 887(1), Article 17. https://doi.org/10.3847/1538-4357/ab4d4d

We investigate a conceptual modification of the halo occupation distribution approach, using the halos’ present-day maximal circular velocity, Vmax, as an alternative to halo mass. In particular, using a semianalytic galaxy formation model applied to... Read More about On the Prospect of Using the Maximum Circular Velocity of Halos to Encapsulate Assembly Bias in the Galaxy–Halo Connection.

Thermal stability of winds driven by radiation pressure in super-Eddington accretion discs (2019)
Journal Article
Pinto, C., Mehdipour, M., Walton, D., Middleton, M., Roberts, T., Fabian, A., …Ness, J. -. (2020). Thermal stability of winds driven by radiation pressure in super-Eddington accretion discs. Monthly Notices of the Royal Astronomical Society, 491(4), 5702-5716. https://doi.org/10.1093/mnras/stz3392

Ultraluminous X-ray sources (ULXs) are mainly powered by accretion in neutron stars or stellar-mass black holes. Accreting at rates exceeding the Eddington limit by factors of a few up to hundreds, radiation pressure is expected to inflate the accret... Read More about Thermal stability of winds driven by radiation pressure in super-Eddington accretion discs.

Higgs vacuum decay in a braneworld (2019)
Journal Article
Cuspinera, L., Gregory, R., Marshall, K. M., & Moss, I. G. (2020). Higgs vacuum decay in a braneworld. International Journal of Modern Physics D, 29(1), Article 2050005. https://doi.org/10.1142/s0218271820500054

We examine the effect of large extra dimensions on vacuum decay in the Randall– Sundrum (RS) braneworld paradigm. We assume the scalar field is confined to the brane, and compute the probability for forming an “anti-de Sitter” (AdS) bubble inside a c... Read More about Higgs vacuum decay in a braneworld.

Discovery of a soft X-ray lag in the Ultraluminous X-ray Source NGC 1313 X-1 (2019)
Journal Article
Kara, E., Pinto, C., Walton, D., Alston, W., Bachetti, M., Barret, D., …Webb, N. (2020). Discovery of a soft X-ray lag in the Ultraluminous X-ray Source NGC 1313 X-1. Monthly Notices of the Royal Astronomical Society, 491(4), 5172-5178. https://doi.org/10.1093/mnras/stz3318

Ultraluminous X-ray Sources (ULXs) provide a unique opportunities to probe the geometry and energetics of super-Eddington accretion. The radiative processes involved in super-Eddington accretion are not well understood, and so studying correlated var... Read More about Discovery of a soft X-ray lag in the Ultraluminous X-ray Source NGC 1313 X-1.

∆Ms theory precision confronts flavour anomalies (2019)
Journal Article
Di Luzio, L., Kirk, M., Lenz, A., & Rauh, T. (2019). ∆Ms theory precision confronts flavour anomalies. Journal of High Energy Physics, 2019(12), Article 9. https://doi.org/10.1007/jhep12%282019%29009

Based on recent HQET sum rule and lattice calculations we present updated Standard Model predictions for the mass differences of neutral B mesons: ΔMSMs=(18.4+0.7−1.2)ps−1 and ΔMSMd=(0.533+0.022−0.036)ps−1 study their impact onnew physics models that... Read More about ∆Ms theory precision confronts flavour anomalies.

Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung (2019)
Journal Article
Banerjee, S., Gupta, R. S., Reiness, J. Y., & Spannowsky, M. (2019). Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung. Physical Review D, 100(11), Article 115004. https://doi.org/10.1103/physrevd.100.115004

We propose differential observables for pp → Zðlþl−Þhðb¯bÞ that can be used to completely determine the tensor structure of the hZZ=hZ¯ff couplings relevant to this process in the dimension-six Standard Model (SM) effective field theory. In particula... Read More about Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung.

Novel B-decay signatures of light scalars at high energy facilities (2019)
Journal Article
Blance, A., Chala, M., Ramos, M., & Spannowsky, M. (2019). Novel B-decay signatures of light scalars at high energy facilities. Physical Review D, 100(11), Article 115015. https://doi.org/10.1103/physrevd.100.115015

We study the phenomenology of light scalars of masses m1 and m2 coupling to heavy flavor-violating vector bosons of mass mV. For m1;2 ≲ few GeV, this scenario triggers the rare B meson decays B0s → 3μþ3μ−, B0 → 3μþ3μ−, Bþ → Kþ3μþ3μ−, and B0s → K03μþ3... Read More about Novel B-decay signatures of light scalars at high energy facilities.

Higgs phenomenology as a probe of sterile neutrinos (2019)
Journal Article
Butterworth, J. M., Chala, M., Englert, C., Spannowsky, M., & Titov, A. (2019). Higgs phenomenology as a probe of sterile neutrinos. Physical Review D, 100(11), Article 115019. https://doi.org/10.1103/physrevd.100.115019

Physics beyond the Standard Model can manifest itself as both new light states and heavy degrees of freedom. In this paper, we assume that the former comprise only a sterile neutrino, N. Therefore, the most agnostic description of the new physics is... Read More about Higgs phenomenology as a probe of sterile neutrinos.