All Outputs (9)

A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars (2018)
Journal Article
McKee, J. W., Stappers, B. W., Bassa, C. G., Chen, S., Cognard, I., Gaikwad, M., …Zhu, W. W. (2019). A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars. Monthly notices of the Royal Astronomical Society, 483(4), 4784-4802. https://doi.org/10.1093/mnras/sty3058

We have studied 4265 giant pulses (GPs) from the millisecond pulsar B1937+21; the largest-ever sample gathered for this pulsar, in observations made with the Large European Array for Pulsars. The pulse energy distribution of GPs associated with the i... Read More about A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars.

Tests of gravitational symmetries with pulsar binary J1713+0747 (2018)
Journal Article
Zhu, W. W., Desvignes, G., Wex, N., Caballero, R. N., Champion, D. J., Demorest, P. B., …Tiburzi, C. (2019). Tests of gravitational symmetries with pulsar binary J1713+0747. Monthly notices of the Royal Astronomical Society, 482(3), 3249-3260. https://doi.org/10.1093/mnras/sty2905

Symmetries play a fundamental role in modern theories of gravity. The strong equivalence principle (SEP) constitutes a collection of gravitational symmetries which are all implemented by general relativity. Alternative theories, however, are generall... Read More about Tests of gravitational symmetries with pulsar binary J1713+0747.

Studying the Solar system with the International Pulsar Timing Array (2018)
Journal Article
Caballero, R. N., Guo, Y. J., Lee, K. J., Lazarus, P., Champion, D. J., Desvignes, G., …Zhu, W. W. (2018). Studying the Solar system with the International Pulsar Timing Array. Monthly notices of the Royal Astronomical Society, 481(4), 5501-5516. https://doi.org/10.1093/MNRAS/STY2632

Pulsar-timing analyses are sensitive to errors in the Solar-system ephemerides (SSEs) that timing models utilize to estimate the location of the Solar-system barycentre, the quasi-inertial reference frame to which all recorded pulse times-of-arrival... Read More about Studying the Solar system with the International Pulsar Timing Array.

The kinematics of cluster galaxies via velocity dispersion profiles (2018)
Journal Article
Bilton, L. E., & Pimbblet, K. A. (2018). The kinematics of cluster galaxies via velocity dispersion profiles. Monthly notices of the Royal Astronomical Society, 481(2), 1507-1521. https://doi.org/10.1093/mnras/sty2379

© 2018 The Author(s). We present an analysis of the kinematics of a sample of 14 galaxy clusters via velocity dispersion profiles (VDPs), compiled using cluster parameters defined within the X-Ray Galaxy Clusters Database (BAX) cross-matched with dat... Read More about The kinematics of cluster galaxies via velocity dispersion profiles.

The multiphase circumgalactic medium traced by low metal ions in EAGLE zoom simulations (2018)
Journal Article
Oppenheimer, B. D., Schaye, J., Crain, R. A., Werk, J. K., & Richings, A. J. (2018). The multiphase circumgalactic medium traced by low metal ions in EAGLE zoom simulations. Monthly notices of the Royal Astronomical Society, 481(1), 835-859. https://doi.org/10.1093/mnras/sty2281

We explore the circumgalactic metal content traced by commonly observed low ion absorbers, including C II, SiII, SiIII, SiIV, and MgII. We use a set of cosmological hydrodynamical zoom simulations run with the EAGLE model and including a non-equilibr... Read More about The multiphase circumgalactic medium traced by low metal ions in EAGLE zoom simulations.

Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by supermassive black hole binaries (2018)
Journal Article
Perera, B. B., Stappers, B. W., Babak, S., Keith, M. J., Antoniadis, J., Bassa, C. G., …Taylor, S. R. (2018). Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by supermassive black hole binaries. Monthly notices of the Royal Astronomical Society, 478(1), 218-227. https://doi.org/10.1093/mnras/sty1116

We search for continuous gravitational waves (CGWs) produced by individual supermassive black hole binaries in circular orbits using high-cadence timing observations of PSR J1713+0747. We observe this millisecond pulsar using the telescopes in the Eu... Read More about Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by supermassive black hole binaries.

Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision (2018)
Journal Article
McKee, J. W., Lyne, A. G., Stappers, B. W., Bassa, C. G., & Jordan, C. A. (2018). Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision. Monthly notices of the Royal Astronomical Society, 479(3), 4216-4224. https://doi.org/10.1093/mnras/sty1727

We have measured variations in scattering time-scales in the Crab Pulsar over a 30-yr period, using observations made at 610 MHz with the 42-ft telescope at Jodrell Bank Observatory. Over more recent years, where regular Lovell Telescope observations... Read More about Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision.

Radiative cooling of swept-up gas in AGN-driven galactic winds and its implications for molecular outflows (2018)
Journal Article
Richings, A. J., & Faucher-Giguère, C. A. (2018). Radiative cooling of swept-up gas in AGN-driven galactic winds and its implications for molecular outflows. Monthly notices of the Royal Astronomical Society, 478(3), 3100-3119. https://doi.org/10.1093/MNRAS/STY1285

We recently used hydrochemical simulations to demonstrate that molecular outflows observed in luminous quasars can be explained by molecule formation within the active galactic nucleus (AGN) wind. However, these simulations cover a limited parameter... Read More about Radiative cooling of swept-up gas in AGN-driven galactic winds and its implications for molecular outflows.

Development of mobile-interfaced machine learning-based predictive models for improving students' performance in programming courses (2018)
Journal Article
Matthew, F. T., Adepoju, A. I., Ayodele, O., Olumide, O., Olatayo, O., Adebimpe, E., …Funmilola, E. (2018). Development of mobile-interfaced machine learning-based predictive models for improving students' performance in programming courses. International journal of advanced computer science and applications : IJACSA, 9(5), 105-115. https://doi.org/10.14569/IJACSA.2018.090514

Student performance modelling (SPM) is a critical step to assessing and improving students' performances in their learning discourse. However, most existing SPM are based on statistical approaches, which on one hand are based on probability, depictin... Read More about Development of mobile-interfaced machine learning-based predictive models for improving students' performance in programming courses.