Outputs (264)

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., Caballero, R. N., Champion, D. J., Cognard, I., Desvignes, G., Graikou, E., Guillemot, L., Janssen, G. H., Karuppusamy, R., Kramer, M., Lazarus, P., Lentati, L., Liu, K., Lyne, A. G., McKee, J. W., …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.

Evolution of starburst galaxies in the Illustris simulation (2018)
Journal Article
Wilkinson, C. L., Pimbblet, K. A., Stott, J. P., Few, C. G., & Gibson, B. K. (2018). Evolution of starburst galaxies in the Illustris simulation. Monthly notices of the Royal Astronomical Society, 479(1), 758-767. https://doi.org/10.1093/mnras/sty1493

© 2018 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society. There is a consensus in the literature that starburst galaxies are triggered by interaction events. However, it remains an open question as to wha... Read More about Evolution of starburst galaxies in the Illustris simulation.

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.

Galaxy and mass assembly (GAMA): Impact of the group environment on galaxy star formation (2018)
Journal Article
Barsanti, S., Owers, M. S., Brough, S., Davies, L. J. M., Driver, S. P., Gunawardhana, M. L. P., Holwerda, B. W., Liske, J., Loveday, J., Pimbblet, K. A., Robotham, A. S. G., & Taylor, E. N. (2018). Galaxy and mass assembly (GAMA): Impact of the group environment on galaxy star formation. The Astrophysical journal, 857(1), 71. https://doi.org/10.3847/1538-4357/aab61a

© 2018. The American Astronomical Society. All rights reserved. We explore how the group environment may affect the evolution of star-forming galaxies. We select 1197 Galaxy And Mass Assembly groups at 0.05 ≤ z ≤ 0.2 and analyze the projected phase s... Read More about Galaxy and mass assembly (GAMA): Impact of the group environment on galaxy star formation.

Galaxy And Mass Assembly (GAMA): the effect of galaxy group environment on active galactic nuclei (2018)
Journal Article
Gordon, Y. A., Pimbblet, K. A., Owers, M. S., Bland-Hawthorn, J., Brough, S., Brown, M. J. I., Cluver, M. E., Croom, S. M., Holwerda, B. W., Loveday, J., Mahajan, S., & Wang, L. (2018). Galaxy And Mass Assembly (GAMA): the effect of galaxy group environment on active galactic nuclei. Monthly notices of the Royal Astronomical Society, 475(3), 4223-4234. https://doi.org/10.1093/mnras/sty115

© 2017 The Author(s). In galaxy clusters, efficiently accreting active galactic nuclei (AGNs) are preferentially located in the infall regions of the cluster projected phase-space, and are rarely found in the cluster core. This has been attributed to... Read More about Galaxy And Mass Assembly (GAMA): the effect of galaxy group environment on active galactic nuclei.

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., Bolaji, O., & 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.

Classification of multi-temporal spectral indices for crop type mapping: A case study in Coalville, UK (2018)
Journal Article
Palchowdhuri, Y., Valcarce-Diñeiro, R., King, P., & Sanabria-Soto, M. (2018). Classification of multi-temporal spectral indices for crop type mapping: A case study in Coalville, UK. Journal of Agricultural Science, 156(1), 24-36. https://doi.org/10.1017/s0021859617000879

Remote sensing (RS) offers an efficient and reliable means to map features on Earth. Crop type mapping using RS at various temporal and spatial resolutions plays an important role spanning from environmental to economical. The main objective of the c... Read More about Classification of multi-temporal spectral indices for crop type mapping: A case study in Coalville, UK.

Galaxy And Mass Assembly (GAMA): blue spheroids within 87 Mpc (2017)
Journal Article
Mahajan, S., Drinkwater, M. J., Driver, S., Hopkins, A. M., Graham, A. W., Brough, S., Brown, M. J. I., Holwerda, B. W., Owers, M. S., & Pimbblet, K. A. (2018). Galaxy And Mass Assembly (GAMA): blue spheroids within 87 Mpc. Monthly notices of the Royal Astronomical Society, 475(1), 788-799. https://doi.org/10.1093/mnras/stx3202

© 2017 The Author(s). In this paper, we test if nearby blue spheroid (BSph) galaxies may become the progenitors of star-forming spiral galaxies or passively evolving elliptical galaxies. Our sample comprises 428 galaxies of various morphologies in th... Read More about Galaxy And Mass Assembly (GAMA): blue spheroids within 87 Mpc.

GAMA/G10-COSMOS/3D-HST: the 0 < z < 5 cosmic star formation history, stellar-mass, and dust-mass densities (2017)
Journal Article
Driver, S. P., Andrews, S. K., Davies, L. J., Robotham, A. S., Wright, A. H., Bremer, M. N., Conselice, C. J., Eales, S. A., Hopkins, A. M., Kafle, P. R., Kelvin, L. S., Maddox, S. J., Sansom, A. E., Wilkins, S. M., Driver, S. P., Andrews, S. K., Da Cunha, E., Davies, L. J., Lagos, C., Robotham, A. S. G., …Wilkins, S. M. (2018). GAMA/G10-COSMOS/3D-HST: the 0 < z < 5 cosmic star formation history, stellar-mass, and dust-mass densities. Monthly notices of the Royal Astronomical Society, 475(3), 2891-2935. https://doi.org/10.1093/mnras/stx2728

We use the energy-balance code MAGPHYS to determine stellar and dust masses, and dust corrected star formation rates for over 200 000 GAMA galaxies, 170 000 G10-COSMOS galaxies, and 200 000 3D-HST galaxies. Our values agree well with previously repor... Read More about GAMA/G10-COSMOS/3D-HST: the 0 < z < 5 cosmic star formation history, stellar-mass, and dust-mass densities.