Skip to main content

Research Repository

Advanced Search

All Outputs (540)

The ‘Big Dipper’: the nature of the extreme variability of the AGN SDSS J2232−0806 (2019)
Journal Article
Kynoch, D., Ward, M. J., Lawrence, A., Bruce, A. G., Landt, H., & MacLeod, C. L. (2019). The ‘Big Dipper’: the nature of the extreme variability of the AGN SDSS J2232−0806. Monthly Notices of the Royal Astronomical Society, 485(2), 2573-2588. https://doi.org/10.1093/mnras/stz517

SDSS J2232−0806 (the ‘Big Dipper’) has been identified as a ‘slow-blue nuclear hypervariable’: a galaxy with no previously known active nucleus, blue colours, and large-amplitude brightness evolution occurring on a time-scale of years. Subsequent obs... Read More about The ‘Big Dipper’: the nature of the extreme variability of the AGN SDSS J2232−0806.

Accurate simulation of W, Z, and Higgs boson decays in Sherpa (2019)
Journal Article
Krauss, F., Lindert, J. M., Linten, R., & Schönherr, M. (2019). Accurate simulation of W, Z, and Higgs boson decays in Sherpa. The European Physical Journal C, 79(2), Article 143. https://doi.org/10.1140/epjc/s10052-019-6614-x

We discuss the inclusion of next-to–next-to leading order electromagnetic and of next-to leading order electroweak corrections to the leptonic decays of weak gauge and Higgs bosons in the Sherpa event generator. To this end, we modify the Yennie– Fra... Read More about Accurate simulation of W, Z, and Higgs boson decays in Sherpa.

Orientation effects on the near-infrared broad-band emission of quasars (2019)
Journal Article
Bisogni, S., Lusso, E., Marconi, A., & Risaliti, G. (2019). Orientation effects on the near-infrared broad-band emission of quasars. Monthly Notices of the Royal Astronomical Society, 485(1), 1405-1411. https://doi.org/10.1093/mnras/stz495

We recently proposed the equivalent width (EW) of the narrow [O III]5007 Å emission line as an orientation indicator for active galactic nuclei. We tested this method on about 12 300 optically selected broad-line quasars from the SDSS seventh Data Re... Read More about Orientation effects on the near-infrared broad-band emission of quasars.

Disruption of satellite galaxies in simulated groups and clusters: the roles of accretion time, baryons, and pre-processing (2019)
Journal Article
Bahé, Y. M., Schaye, J., Barnes, D. J., Dalla Vecchia, C., Kay, S. T., Bower, R. G., …Theuns, T. (2019). Disruption of satellite galaxies in simulated groups and clusters: the roles of accretion time, baryons, and pre-processing. Monthly Notices of the Royal Astronomical Society, 485(2), 2287-2311. https://doi.org/10.1093/mnras/stz361

We investigate the disruption of group and cluster satellite galaxies with total mass (dark matter plus baryons) above 1010M⊙ in the Hydrangea simulations, a suite of 24 high-resolution cosmological hydrodynamical zoom-in simulations based on the EAG... Read More about Disruption of satellite galaxies in simulated groups and clusters: the roles of accretion time, baryons, and pre-processing.

Impact of filaments on galaxy formation in their residing dark matter haloes (2019)
Journal Article
Liao, S., & Gao, L. (2019). Impact of filaments on galaxy formation in their residing dark matter haloes. Monthly Notices of the Royal Astronomical Society, 485(1), 464-473. https://doi.org/10.1093/mnras/stz441

We use a high-resolution zoom-in hydrodynamical simulation to investigate the impact of filaments on galaxy formation in their residing dark matter haloes. A method based on the density field and the Hoshen–Kopelman algorithm is developed to identify... Read More about Impact of filaments on galaxy formation in their residing dark matter haloes.

Higgs boson production at the LHC using the qT subtraction formalism at N3LO QCD (2019)
Journal Article
Cieri, L., Chen, X., Gehrmann, T., Glover, E., & Huss, A. (2019). Higgs boson production at the LHC using the qT subtraction formalism at N3LO QCD. Journal of High Energy Physics, 2019(2), Article 96. https://doi.org/10.1007/jhep02%282019%29096

We consider higher-order QCD corrections to Higgs boson production through gluon-gluon fusion in the large top quark mass limit in hadron collisions. We extend the transverse-momentum (qT ) subtraction method to next-to-next-to-next-to-leading order... Read More about Higgs boson production at the LHC using the qT subtraction formalism at N3LO QCD.