Browsing Articles by Author "Gallo, Luigi C."

Browsing Articles by Author "Gallo, Luigi C."

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    Suzaku observations of Mrk 335: confronting partial covering and relativistic reflection 
    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 ...

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    Suzaku observations of ‘bare’ active galactic nuclei 
    Walton, D. J.; Nardini, E.; Fabian, A. C.; Gallo, Luigi C.; Reis, R. C. (Oxford University Press, 2013-02)
    We present an X-ray spectral analysis of a large sample of 25 ‘bare’ active galactic nuclei (AGN), sources with little or no complicating intrinsic absorption, observed with Suzaku. Our work focuses on studying the potential ...

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    Swift, NuStar and XMM-Newton observations of the NLS1 galaxy RX J2317.8–4422 in an extreme X-ray low flux state 
    Grupe, Dirk; Komossa, S.; Gallo, Luigi C.; Schartel, Norbert; Parker, Michael; Santos-Lleo, Maria; Fabian, Andrew C.; Harrison, Fiona; Miniutti, Giovanni (Oxford University PressRoyal Astronomical Society, 2019-03-20)
    We report the discovery of RX J2317.8–4422 in an extremely low X-ray flux state by the Neil Gehrels Swift observatory in 2014 April/May. In total, the low-energy X-ray emission dropped by a factor of 100. ...

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    X-ray spectral and variability properties of low-mass active galactic nuclei 
    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. ...

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    XMM-Newton observations of the narrow-line Seyfert 1 galaxy Mrk 335 in a historical low X-ray flux state 
    Gallo, Luigi C.; Grupe, Dirk; Komossa, Stefanie; Fabian, Andrew C.; Larsson, Josefin; Pradhan, Anil K.; Xu, Dawei; Miniutti, Giovanni (American Astronomical Society, 2008-07)
    We report the discovery of strong soft X-ray emission lines and a hard continuum above 2 keV in the narrow-line Seyfert 1 galaxy Mrk 335 during an extremely low X-ray flux state. Mrk 335 was observed for 22 ks by XMM-Newton ...

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