Outputs (542)

Modernizing quantum annealing using local searches (2017)
Journal Article
Chancellor, N. (2017). Modernizing quantum annealing using local searches. New Journal of Physics, 19(2), Article 023024. https://doi.org/10.1088/1367-2630/aa59c4

I describe how real quantum annealers may be used to perform local (in state space) searches around specified states, rather than the global searches traditionally implemented in the quantum annealing algorithm (QAA). Such protocols will have numerou... Read More about Modernizing quantum annealing using local searches.

The NuSTAR Serendipitous Survey: The 40-month Catalog and the Properties of the Distant High-Energy X-ray Source Population (2017)
Journal Article
Lansbury, G., Stern, D., Aird, J., Alexander, D., Fuentes, C., Harrison, F., …Zhang, W. (2017). The NuSTAR Serendipitous Survey: The 40-month Catalog and the Properties of the Distant High-Energy X-ray Source Population. Astrophysical Journal, 836(1), Article 99. https://doi.org/10.3847/1538-4357/836/1/99

We present the first full catalog and science results for the NuSTAR serendipitous survey. The catalog incorporates data taken during the first 40 months of NuSTAR operation, which provide ~20Ms of effective exposure time over 331 fields, with an are... Read More about The NuSTAR Serendipitous Survey: The 40-month Catalog and the Properties of the Distant High-Energy X-ray Source Population.

Towards the next generation of simplified Dark Matter models (2017)
Journal Article
Albert, A., Bauer, M., Brooke, J., Buchmueller, O., Cerdeño, D. G., Citron, M., …Wardle, N. (2017). Towards the next generation of simplified Dark Matter models. Physics of the Dark Universe, 16, 49-70. https://doi.org/10.1016/j.dark.2017.02.002

This White Paper is an input to the ongoing discussion about the extension and refinement of simplified Dark Matter (DM) models. It is not intended as a comprehensive review of the discussed subjects, but instead summarises ideas and concepts arising... Read More about Towards the next generation of simplified Dark Matter models.

The LOFAR Two-metre Sky Survey. I. Survey description and preliminary data release (2017)
Journal Article
Shimwell, T., Röttgering, H., Best, P., Williams, W., Dijkema, T., de Gasperin, F., Hardcastle, M., Heald, G., Hoang, D., Horneffer, A., Intema, H., Mahony, E., Mandal, S., Mechev, A., Morabito, L., Oonk, J., Rafferty, D., Retana-Montenegro, E., Sabater, J., Tasse, C., …Zwart, J. (2017). The LOFAR Two-metre Sky Survey. I. Survey description and preliminary data release. Astronomy & Astrophysics, 598, https://doi.org/10.1051/0004-6361/201629313

The tangential velocity excess of the Milky Way satellites (2017)
Journal Article
Cautun, M., & Frenk, C. S. (2017). The tangential velocity excess of the Milky Way satellites. Monthly Notices of the Royal Astronomical Society: Letters, 468(1), L41-L45. https://doi.org/10.1093/mnrasl/slx025

We estimate the systemic orbital kinematics of the Milky Way classical satellites and compare them with predictions from the Λ cold dark matter (ΛCDM) model derived from a semi-analytical galaxy formation model applied to high-resolution cosmological... Read More about The tangential velocity excess of the Milky Way satellites.

Invisible decays in Higgs boson pair production (2017)
Journal Article
Banerjee, S., Batell, B., & Spannowsky, M. (2017). Invisible decays in Higgs boson pair production. Physical Review D, 95(3), Article 035009. https://doi.org/10.1103/physrevd.95.035009

Observation of Higgs pair production is an important long term objective of the LHC physics program as it will shed light on the scalar potential of the Higgs field and the nature of electroweak symmetry breaking. While numerous studies have examined... Read More about Invisible decays in Higgs boson pair production.

Crossing the Eddington Limit: Examining Disk Spectra at High Accretion Rates (2017)
Journal Article
Sutton, A., Swartz, D., Roberts, T., Middleton, M., Soria, R., & Done, C. (2017). Crossing the Eddington Limit: Examining Disk Spectra at High Accretion Rates. Astrophysical Journal, 836(1), Article 48. https://doi.org/10.3847/1538-4357/836/1/48

The faintest ultraluminous X-ray sources (ULXs), those with 0.3-10 keV luminosities 1 < L_X/10^39 < 3 erg s^-1, tend to have X-ray spectra that are disk-like but broader than expected for thin accretion disks. These `broadened disk' spectra are thoug... Read More about Crossing the Eddington Limit: Examining Disk Spectra at High Accretion Rates.

The KMOS Redshift One Spectroscopic Survey (KROSS): rotational velocities and angular momentum of z ≈ 0.9 galaxies (2017)
Journal Article
Harrison, C., Johnson, H., Swinbank, A., Stott, J., Bower, R., Smail, I., …Magdis, G. (2017). The KMOS Redshift One Spectroscopic Survey (KROSS): rotational velocities and angular momentum of z ≈ 0.9 galaxies. Monthly Notices of the Royal Astronomical Society, 467(2), 1965-1983. https://doi.org/10.1093/mnras/stx217

We present dynamical measurements for 586 Hα detected star-forming galaxies from the KMOS (K-band Multi-Object Spectrograph) Redshift One Spectroscopic Survey (KROSS). The sample represents typical star-forming galaxies at this redshift (z = 0.6–1.0)... Read More about The KMOS Redshift One Spectroscopic Survey (KROSS): rotational velocities and angular momentum of z ≈ 0.9 galaxies.

Soft Extragalactic X-Ray Binaries at the Eddington Threshold (2017)
Journal Article
Earnshaw, H., & Roberts, T. (2017). Soft Extragalactic X-Ray Binaries at the Eddington Threshold. Monthly Notices of the Royal Astronomical Society, 467(3), 2690-2705. https://doi.org/10.1093/mnras/stx308

The luminosity range at and just below the 1039 erg s−1 cut-off for defining ultraluminous X-ray sources (ULXs) is a little-explored regime. It none-the-less hosts a large number of X-ray sources, and has great potential for improving our understandi... Read More about Soft Extragalactic X-Ray Binaries at the Eddington Threshold.

Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations (2017)
Journal Article
Natarajan, P., Chadayammuri, U., Jauzac, M., Richard, J., Kneib, J., Ebeling, H., …Vogelsberger, M. (2017). Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations. Monthly Notices of the Royal Astronomical Society, 468(2), 1962-1980. https://doi.org/10.1093/mnras/stw3385

We map the lensing-inferred substructure in the first three clusters observed by the Hubble Space Telescope Frontier Fields (HSTFF) Initiative: Abell 2744 (z = 0.308), MACSJ 0416, (z = 0.396) and MACSJ 1149 (z = 0.543). Statistically resolving dark m... Read More about Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations.