EXTraS Papers

Here is a list of our papers, publishing EXTraS results. Click here for a full list of publications, including talks and posters.


  • L. Sidoli, K. Postnov, A. Belfiore, M. Marelli, D. Salvetti, R. Salvaterra, A. De Luca, and P. Esposito (arXiv):

    Supergiant Fast X-ray Transients uncovered by the EXTraS project: flares reveal the development of magnetospheric instability in accreting neutron stars

    Monthly Notices of the Royal Astronomical Society, V. 487(1), p.420-434, 2019. Doi: 10.1093/mnras/stz1283

  • M. Marelli, D. De Martino, S. Mereghetti, A. De Luca, R. Salvaterra, L. Sidoli, G. Israel, and G. Rodriguez (arXiv):

    The First Orbital Period of a Very Bright and Fast Nova in M31: M31N 2013-01b

    The Astrophysical Journal, V. 866(2), 125, 2018. Doi:10.3847/1538-4357/aadc67

  • S. Mereghetti, A. De Luca, D. Salvetti, A. Belfiore, M. Marelli, A. Paizis, M. Rigoselli, R. Salvaterra, L. Sidoli, A. Tiengo (arXiv):

    EXTraS discovery of a peculiar flaring X-ray source in the Galactic globular cluster NGC 6540

    Astronomy & Astrophysics, V. 616 pp. A36, 2018. Doi: 10.1051/0004-6361/201833086

  • M. Marelli, D. Salvetti, F. Gastaldello, S. Ghizzardi, S. Molendi, A. De Luca, A. Moretti, M. Rossetti, A. Tiengo (arXiv):

    A Systematic Analysis of the XMM-Newton Background: I. Dataset and Extraction Procedures

    Experimental Astronomy, V. 44(3), pp.297-308, 2017. Doi: 10.1007/s10686-017-9542-5

  • D. Salvetti, M. Marelli, F. Gastaldello, S. Ghizzardi, S. Molendi, A. De Luca, A. Moretti, M. Rossetti, A. Tiengo (arXiv):

    A systematic analysis of the XMM-Newton background: II. Properties of the in-Field-Of-View excess component

    Experimental Astronomy, V. 44(3), pp.309-320, 2017. Doi: 10.1007/s10686-017-9539-0

  • S. Ghizzardi, M. Marelli, D. Salvetti, F. Gastaldello, S. Molendi, A. De Luca, A. Moretti, M. Rossetti, A. Tiengo (arXiv):

    A systematic analysis of the XMM-Newton background: III. Impact of the magnetospheric environment

    Experimental Astronomy, V. 44(3), pp.273-285, 2017. Doi: 10.1007/s10686-017-9554-1

  • F. Gastaldello, S. Ghizzardi, M. Marelli, D. Salvetti, S. Molendi, A. De Luca, A. Moretti, M. Rossetti, A. Tiengo (arXiv):

    A systematic analysis of the XMM-Newton background: IV. Origin of the unfocused and focused components

    Experimental Astronomy, V. 44(3), pp.321-336, 2017. Doi: 10.1007/s10686-017-9549-y

  • M. Marelli, A. Tiengo, A. De Luca, D. Salvetti, L. Saronni, L. Sidoli, A. Paizis, R. Salvaterra, A. Belfiore, G. Israel, F. Haberl, and D. D'Agostino (arXiv):

    Discovery of periodic dips in the brightest hard X-ray source of M31 with EXTraS

    The Astrophysical Journal Letters, V. 851(2), L27, 2017.Doi: 10.3847/2041-8213/aa9b2e

  • G.L. Israel, A. Belfiore, L. Stella, P. Esposito, P. Casella, A. De Luca, M. Marelli, A.Papitto, M. Perri, S. Puccetti, G. A. Rodriguez Castillo, D. Salvetti, A. Tiengo, L. Zampieri, D. D'Agostino, J. Greiner, F. Haberl, G. Novara, R. Salvaterra, R. Turolla, M. Watson, J. Wilms, and A. Wolter (arXiv):

    An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907

    ScienceV. 355(6327), pp 817-819, 2017. Doi: 10.1126/science.aai8635

  • G.L. Israel, A. Papitto, P. Esposito, L. Stella, L. Zampieri, A. Belfiore, G. A. Rodriguez Castillo, A. De Luca, A. Tiengo, F. Haberl, J. Greiner, R. Salvaterra, S. Sandrelli, and G. Lisini (arxiv

    Discovery of a 0.42-s pulsar in the ultraluminous X-ray source NGC 7793 P13 

    Monthly Notices of the Royal Astronomical Society, V. 466, pp.  L48, 2017. Doi: 10.1093/mnrasl/slw218

  • F. Haberl, G. L. Israel, G. A. Rodriguez Castillo, G. Vasilopoulos, C. Delvaux, A. De Luca, S. Carpano, P. Esposito, G. Novara, R. Salvaterra, A. Tiengo, D. D'Agostino, and A. Udalski (arXiv)

    EXTraS discovery of two pulsators in the direction of the LMC: a Be/X-ray binary pulsar in the LMC and a candidate double-degenerate polar in the foreground

    Astronomy & Astrophysics, V. 598, pp. A69, 2017. Doi: 10.1051/0004-6361/201629744

  • P. Esposito, G. L. Israel, A. Belfiore, G. Novara, L. Sidoli, G. A. Rodriguez Castillo, A. De Luca, A. Tiengo, F. Haberl, R. Salvaterra, A. M. Read, D. Salvetti, S. Sandrelli, M. Marelli, J. Wilms, and D. D'Agostino (arXiv) :

    EXTraS discovery of an 1.2-s X-ray pulsar in M 31

    Monthly Notices of the Royal Astronomical Society, V. 457(1), pp. L5-L9, 2016. Doi: 10.1093/mnrasl/slv194

  • D. Pizzocaro, B. Stelzer, R. Paladini, A. Tiengo, G. Lisini, G. Novara, G. Vianello, A. Belfiore, M. Marelli, D. Salvetti, I. Pillitteri, S. Sciortino, D. D'Agostino, F. Haberl, M. Watson, J. Wilms, R. Salvaterra, and A. De Luca (arXiv) :

    Results from DROXO IV. EXTraS discovery of an X-ray flare from the Class I protostar candidate ISO-Oph 85

    Astronomy and Astrophysics, V. 587, pp. A36, 2016. Doi: 10.1051/0004-6361/201526562