Articles

Articles

 

Recent Submissions

  • Robertson, D. R. S.; Gallo, Luigi C.; Zoghbi, A.; Fabian, A. C. (Oxford University Press, 2015-09-09)
    We examine simultaneous X-ray and UV light curves from multi-epoch 8 d XMM–Newton observations of the narrow line Seyfert 1 galaxy 1H 0707–495. The simultaneous observations reveal that both X-ray and UV emission are ...

  • Ludlam, R. M.; Cackett, E. M.; Gultekin, K.; Fabian, A. C.; Gallo, Luigi C.; Miniutti, G. (Oxford University Press, 2015-03)
    We study the X-ray properties of a sample of 14 optically selected low-mass active galactic nuclei (AGN) whose masses lie within the range 10[superscript 5]–2 × 10[superscript 6] M[subscript circled dot] with XMM–Newton. ...

  • Gallo, Luigi C.; Wilkins, D. R.; Bonson, K.; Chiang, C.-Y.; Grupe, D.; Parker, M. L.; Zoghbi, A.; Fabian, A. C.; Komossa, S.; Longinotti, A. L. (Oxford University Press, 2015-01)
    We report on the deepest X-ray observation of the narrow-line Seyfert 1 galaxy Mrk 335 in the low-flux state obtained with Suzaku. The data are compared to a 2006 high-flux Suzaku observation when the source was ∼10 times ...

  • Evans, N. R.; Szabo, R.; Derekas, A.; Szabados, L.; Cameron, C.; Matthews, J. M.; Sasselov, D.; Kuschnig, R.; Rowe, J. F.; Guenther, David B. (Oxford University Press, 2015-02)
    The quantity and quality of satellite photometric data strings is revealing details in Cepheid variation at very low levels. Specifically, we observed a Cepheid pulsating in the fundamental mode and one pulsating in the ...

  • McCalla, Margaret; McCalla, William (2017)
    William (Will) Copeland McCalla was born in St. Catharines, Ontario, Canada in 1872. Margaret Adam Ratcliffe was born in the same place in 1880. They married in 1902. He was a prosperous market gardener in the St. Catharines ...

  • Chiang, Chia-Ying; Walton, D. J.; Fabian, A. C.; Wilkins, D. R.; Gallo, Luigi C. (Oxford University Press, 2015-01)
    The extreme narrow-line Seyfert 1 galaxy IRAS 13224-3809 shows significant variability, frequency depended time lags, and strong Fe K line and Fe L features in the long 2011 XMM-Newton observation. In this work we study ...

  • Garcia, Gaston Andres; Mastnak, Mitja (International Press, 2015)
    We introduce a method to construct explicitly multiplicative 2-cocycles for bosonizations of Nichols algebras B(V ) over Hopf algebras H. These cocycles arise as liftings of H-invariant linear functionals on V [circle ...

  • Angiono, Ivan; Kochetov, Mikhail; Mastnak, Mitja (Elsevier, 2015-12)
    We study deformations of graded braided bialgebras using cohomological methods. In particular, we show that many examples of Nichols algebras, including the finite-dimensional ones arising in the Andruskiewitsch-Schneider ...

  • Bradler, Kamil (IOP Publishing, 2015-03-02)
    We prove that whenever the coherent information of a one-mode Gaussian channel is non-zero its supremum is achieved for the infinite input power. This is a well established fact for the zero added classical noise, whereas ...

  • Martemianov, M.; Kulikov, V.; Demissie, B. T.; Marinides, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Beck, R.; Borisov, N.; Braghieri, A.; Collicott, Cristina; Sarty, Adam James, 1965- (IOP Publishing, 2015-04-07)
    We report on a measurement of the neutron detection efficiency in NaI crystals in the Crystal Ball detector obtained from a study of single [pi][superscript 0] photoproduction on deuterium using the tagged photon beam at ...

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