Search Results - "Littlefair, S.P."

Magnetospherically driven optical and radio aurorae at the end of the stellar main sequence by Hallinan, G., Littlefair, S. P., Cotter, G., Bourke, S., Harding, L. K., Pineda, J. S., Butler, R. P., Golden, A., Basri, G., Doyle, J. G., Kao, M. M., Berdyugina, S. V., Kuznetsov, A., Rupen, M. P., Antonova, A.

“…Radio and optical spectroscopic observations of a brown dwarf reveal auroral emissions powered by magnetospheric currents, showing that aurorae may be a…”
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First detection of the outer edge of an AGN accretion disc: very fast multiband optical variability of NGC 4395 with GTC/HiPERCAM and LT/IO:O by McHardy, I M, Beard, M, Breedt, E, Knapen, J H, Vincentelli, F M, Veresvarska, M, Dhillon, V S, Marsh, T R, Littlefair, S P, Horne, K, Glew, R, Goad, M R, Kammoun, E, Emmanoulopoulos, D

“…ABSTRACT We present fast (∼200 s sampling) $\it ugriz$ photometry of the low -mass AGN NGC 4395 with the Liverpool Telescope, followed by very fast (3 s…”
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Multi-colour optical light curves of the companion star to the millisecond pulsar PSR J2051-0827 by Dhillon, V.S., Kennedy, M.R., Breton, R.P., Clark, C.J., Sánchez, D. Mata, Voisin, Guillaume, Breedt, E., Brown, A.J., Dyer, M.J., Green, M.J., Kerry, P., Littlefair, S.P., Marsh, T.R., Parsons, S.G., Pelisoli, I., Sahman, D.I., Wild, J.F., van Kerkwijk, M.H., Stappers, B.W.

“…We present simultaneous, multi-colour optical light curves of the companion star to the black-widow pulsar PSR J2051-0827, obtained approximately 10 years…”
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The evolution of rapid optical/X-ray timing correlations in the initial hard state of MAXI J1820+070 by Paice, J A, Gandhi, P, Shahbaz, T, Veledina, A, Malzac, J, Buckley, D A H, Charles, P A, Rajwade, K, Dhillon, V S, Littlefair, S P, Marsh, T R, Uttley, P, Vincentelli, F M, Misra, R

“…ABSTRACT We report on a multiepoch campaign of rapid optical/X-ray timing observations of the superbright 2018 outburst of MAXI J1820+070, a black hole…”
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A black hole X-ray binary at $\sim$ 100 Hz: multiwavelength timing of MAXI J1820+070 with HiPERCAM and NICER by Paice, J.A., Gandhi, P., Shahbaz, T., Uttley, P., Arzoumanian, Z., Charles, P.A., Dhillon, V.S., Gendreau, K.C., Littlefair, S.P., Malzac, J., Markoff, S., Marsh, T.R., Misra, R., Russell, D.M., Veledina, A.

“…We report on simultaneous sub-second optical and X-ray timing observations of the low-mass X-ray binary black hole candidate MAXI J1820+070. The bright 2018…”
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Brown Dwarf Mass Donor in an Accreting Binary by Littlefair, S.P, Dhillon, V.S, Marsh, T.R, Gänsicke, Boris T, Southworth, John, Watson, C.A

“…A long-standing and unverified prediction of binary star evolution theory is the existence of a population of white dwarfs accreting from substellar donor…”
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The mass of the white dwarf in the recurrent nova U Scorpii by Thoroughgood, T.D., Dhillon, V.S., Littlefair, S.P., Marsh, T.R., Smith, D.A.

“…We present spectroscopy of the eclipsing recurrent nova U Sco. The radial velocity semi-amplitude of the primary star was found to be from the motion of the…”
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K-band spectroscopy of the intermediate polar XY Ari by Littlefair, S.P., Dhillon, V.S., Marsh, T.R.

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The mass of the white dwarf in the recurrent nova U Scorpii by Thoroughgood, T.D., Dhillon, V.S., Littlefair, S.P., Marsh, T.R., Smith, D.A.

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Mirror eclipses in the cataclysmic variable IP Peg by Littlefair, S.P., Dhillon, V.S., Marsh, T.R., Harlaftis, E.T.

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K-band spectroscopy of the intermediate polar XY Ari by Littlefair, S.P., Dhillon, V.S., Marsh, T.R.

“…We present the K-band infrared spectrum of the intermediate polar XY Ari. The spectrum confirms the cataclysmic binary nature of XY Ari, showing emission lines…”
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Mirror eclipses in the cataclysmic variable IP Peg by Littlefair, S.P., Dhillon, V.S., Marsh, T.R., Harlaftis, E.T.

“…We present time resolved K-band infrared spectra of the dwarf nova (DN) IP Peg in early quiescence. The Brackett γ and He i (λ2.0581) lines in our data show…”
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