activity
19992024
most citedMagnetar powered GRBs: Explaining the extended emission and X-ray plateau of short GRB light curves

155 citations · 1.2k across the 31 of their papers we have counts for

collaborators

31 papers

astro-ph.HE2024

Investigating the Hard State of MAXI J1820+070: A Comprehensive Bayesian Approach to Black Hole Spin and Accretion Properties

Sachin D. Dias, Simon Vaughan, Mehdy Lefkir +1

We analyse the X-ray spectrum of the black hole X-ray binary MAXI J1820+070 using observations from XMM-Newton and NuSTAR during 'hard' states of its 2018-2019 outburst. We take a…

astro-ph.SR2020★ 10 cited

Confirming new white dwarf-ultracool dwarf binary candidates

Miriam Hogg, Sarah Casewell, Graham Wynn +8

We present the results of a study to discover prospective new white dwarf-L dwarf binaries as identified by their near-infrared excesses in the UKIDSS catalogue. We obtained optica…

astro-ph.GA2018★ 4 cited

Does slow and steady win the race? Investigating feedback processes in giant molecular clouds

L. Garratt-Smithson, G. A. Wynn, C. Power +1

We investigate the effects of gradual heating on the evolution of turbulent molecular clouds of mass M and virial parameters ranging between . This…

astro-ph.SR2017★ 24 cited

X-ray orbital modulation of a white dwarf accreting from an L dwarf: The system SDSS J121209.31+013627.7

B. Stelzer, D. de Martino, S. L. Casewell +2

In an XMM-Newton observation of the binary SDSS J121209.31+013627.7, consisting of a white dwarf and an L dwarf, we detect X-ray orbital modulation as proof of accretion from the s…

astro-ph.SR2016★ 6 cited

High-resolution optical spectroscopy of RS Ophiuchi during 2008 -- 2009

A. Somero, P. Hakala, G. A. Wynn

RS Ophiuchi is a symbiotic variable and a recurrent nova. We have monitored it with the Nordic Optical Telescope and obtained 30 high resolution (R=46 000) optical spectra over one…

astro-ph.SR2016★ 14 cited

A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs

Ben Burningham, M. Hardcastle, J. D. Nichols +9

We have conducted a mini-survey for low-frequency radio emission from some of the closest brown dwarfs to the Sun with rapid rotation rates: SIMP J013656.5+093347, WISEPC J150649.9…