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Mass accretion and ejection in transitional millisecond pulsars

Total Cost €


EC-Contrib. €






Project "TMSP" data sheet

The following table provides information about the project.


Organization address
city: ROMA
postcode: 136

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Italy [IT]
 Project website
 Total cost 168˙277 €
 EC max contribution 168˙277 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-04-04   to  2018-04-03


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The behaviour of matter under extreme conditions and the reason why accretion onto many astrophysical objects is accompanied by outflows of plasma like jets, are key questions of astrophysical research. Neutron stars (NSs) are prime laboratories for this investigation. They are the solid-surface bodies in which the most extreme conditions of gravity, density, pressure and magnetization are realized. When they are part of a binary system, and matter is transferred from their companion star, several phenomena occur which have shed light on the physics of mass accretion and NS magnetospheres, as well as the production of high energy radiation and pulsations. An important new class of pulsars spinning at a period of few milliseconds and switching between plasma accretion and ejection was discovered in 2013; they are dubbed transitional millisecond pulsars. These sources alternate between radio and X-ray pulsar regimes as a result of the interaction between the in-flowing plasma and the outward pressure exerted by their magnetosphere and radiation. They experience over few weeks transitions from a rotationally powered regime, in which they behave like radio pulsars, to a regime in which they accrete matter and emit intense high-energy radiation, like standard X-ray binary systems. In between these regimes these NSs display intermediate states which are still to be investigated in detail. Transitional millisecond pulsars provide us with a unique laboratory to study the interaction between the matter inflowing towards the NS, its rotating magnetosphere and the outgoing radiation, particle wind and jets. With this program based on multi-waveband (radio, optical, X-rays, gamma-rays) observations, we will exploit the diagnostic potential of these systems to (i) determine how outflows of plasma are launched and how they are coupled to the accretion process; (ii) measure their mass and spin to constrain their evolutionary state; (iii) study the formation of accretion disks.


year authors and title journal last update
List of publications.
2017 M. C. Baglio, S. Campana, P. D’Avanzo, A. Papitto, L. Burderi, T. Di Salvo, T. Muñoz-Darias, N. Rea, D. F. Torres
The puzzling case of the accreting millisecond X-ray pulsar IGR J00291+5934: flaring optical emission during quiescence
published pages: A109, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201629524
Astronomy & Astrophysics 600 2019-06-18
2017 A. Sanna, F. Pintore, E. Bozzo, C. Ferrigno, A. Papitto, A. Riggio, T. Di Salvo, R. Iaria, A. D\'Aì, E. Egron, L. Burderi
Spectral and timing properties of IGR J00291+5934 during its 2015 outburst
published pages: 2910-2917, ISSN: 0035-8711, DOI: 10.1093/mnras/stw3332
Monthly Notices of the Royal Astronomical Society 466/3 2019-06-18
2016 A. Papitto, E. Bozzo, C. Sanchez-Fernandez, P. Romano, D. F. Torres,, C. Ferrigno, J. J. E. Kajava, E. Kuulkers
The 2015 outburst of the accreting millisecond pulsar IGR J17511–3057 as seen by INTEGRAL, Swift , and XMM-Newton
published pages: A71, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201628238
Astronomy & Astrophysics 596 2019-06-18
2018 G. A. Rodríguez Castillo, G. Israel, P. Esposito, A. Papitto, L. Stella, A. Tiengo, A. De Luca
Discovery of 3 s pulsations from the Brightest Hard X-ray Source in M31
published pages: , ISSN: 1538-4357, DOI:
The Astrophysical Journal (submitted) 2019-06-18
2016 S. Campana, F. Coti Zelati, A. Papitto, N. Rea, D. F. Torres, M. C. Baglio, P. D’Avanzo
A physical scenario for the high and low X-ray luminosity states in the transitional pulsar PSR J1023+0038
published pages: A31, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201629035
Astronomy & Astrophysics 594 2019-06-18
2018 A. Papitto, N. Rea, F. Coti Zelati, D. de Martino, S. Scaringi, S. Campana, E. de Ońa Wilhelmi, C. Knigge, A. Serenelli, L. Stella, D. F. Torres, P. D’Avanzo, G. L. Israel
The First Continuous Optical Monitoring of the Transitional Millisecond Pulsar PSR J1023+0038 with Kepler
published pages: L12, ISSN: 2041-8213, DOI: 10.3847/2041-8213/aabee9
The Astrophysical Journal 858/2 2019-06-18
2017 C. Ferrigno, E. Bozzo, A. Sanna, F. Pintore, A. Papitto, A. Riggio, L. Burderi, T. Di Salvo, R. Iaria, A. D\'Aì
Discovery of a soft X-ray 8 mHz QPO from the accreting millisecond pulsar IGR J00291+5934
published pages: 3450-3459, ISSN: 0035-8711, DOI: 10.1093/mnras/stw3344
Monthly Notices of the Royal Astronomical Society 466/3 2019-06-18
2017 M. Matranga, A. Papitto, T. Di Salvo, E. Bozzo, D. F. Torres, R. Iaria, L. Burderi, N. Rea, D. de Martino, C. Sanchez-Fernandez, A. F. Gambino, C. Ferrigno, L. Stella
XMM-Newton and INTEGRAL view of the hard state of EXO 1745−248 during its 2015 outburst
published pages: A39, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201629731
Astronomy & Astrophysics 603 2019-06-18
2017 Gian Luca Israel, Andrea Belfiore, Luigi Stella, Paolo Esposito, Piergiorgio Casella, Andrea De Luca, Martino Marelli, Alessandro Papitto, Matteo Perri, Simonetta Puccetti, Guillermo A. Rodríguez Castillo, David Salvetti, Andrea Tiengo, Luca Zampieri, Daniele D’Agostino, Jochen Greiner, Frank Haberl, Giovanni Novara, Ruben Salvaterra, Roberto Turolla, Mike Watson, Joern Wilms, Anna Wolter
An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907
published pages: 817-819, ISSN: 0036-8075, DOI: 10.1126/science.aai8635
Science 355/6327 2019-06-18
2016 M. Burgay, A. Possenti, A. Sanna, A. Papitto, L. Burderi, E. Bozzo, A. Riggio, T. Di Salvo, C. Ferrigno, N. Rea, R. Iaria, A. Corongiu
Parkes upper limit on pulsed radio emission from MAXI J0911-655 at 20-cm
published pages: , ISSN: , DOI:
The Astronomer\'s Telegram 2019-06-18
2016 R. Iaria, T. Di Salvo, M. Del Santo, F. Pintore, A. Sanna, A. Papitto, L. Burderi, A. Riggio, A. F. Gambino, M. Matranga
Study of the reflection spectrum of the LMXB 4U 1702-429
published pages: A21, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201628210
Astronomy & Astrophysics 596 2019-06-18
2016 Jian Li, Diego F. Torres, Nanda Rea, Emma de Oña Wilhelmi, Alessandro Papitto, Xian Hou, Christopher W. Mauche
published pages: 35, ISSN: 1538-4357, DOI: 10.3847/0004-637X/832/1/35
The Astrophysical Journal 832/1 2019-06-18
2017 A. Sanna, T. Di Salvo, L. Burderi, A. Riggio, F. Pintore, A. F. Gambino, R. Iaria, M. Tailo, F. Scarano, A. Papitto
On the timing properties of SAX J1808.4−3658 during its 2015 outburst
published pages: 463-477, ISSN: 0035-8711, DOI: 10.1093/mnras/stx1588
Monthly Notices of the Royal Astronomical Society 471/1 2019-06-18
2018 A. Sanna, A. Bahramian, E. Bozzo, C. Heinke, D. Altamirano, R. Wijnands, N. Degenaar, T. Maccarone, A. Riggio, T. Di Salvo, R. Iaria, M. Burgay, A. Possenti, C. Ferrigno, A. Papitto, G. R. Sivakoff, N. D’Amico, L. Burderi
Discovery of 105 Hz coherent pulsations in the ultracompact binary IGR J16597–3704
published pages: L2, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201732262
Astronomy & Astrophysics 610 2019-06-18
2016 A. Papitto
The ms pulsar - low mass X-ray binary link
published pages: 543-547, ISSN: 1824-016X, DOI:
Memorie della Societa Astronomica Italiana 87 2019-06-18
2017 Diego F. Torres, Long Ji, Jian Li, Alessandro Papitto, Nanda Rea, Emma de Oña Wilhelmi, Shu Zhang
A Search for Transitions between States in Redbacks and Black Widows Using Seven Years of Fermi -LAT Observations
published pages: 68, ISSN: 1538-4357, DOI: 10.3847/1538-4357/836/1/68
The Astrophysical Journal 836/1 2019-06-18
2017 F. Ambrosino, A. Papitto, L. Stella, F. Meddi, P. Cretaro, L. Burderi, T. Di Salvo, G. L. Israel, A. Ghedina, L. Di Fabrizio, L. Riverol
Optical pulsations from a transitional millisecond pulsar
published pages: 854-858, ISSN: 2397-3366, DOI: 10.1038/s41550-017-0266-2
Nature Astronomy 1/12 2019-06-18
2016 G. L. Israel, A. Papitto, P. Esposito, L. Stella, L. Zampieri, A. Belfiore, G. A. Rodríguez Castillo, A. De Luca, A. Tiengo, F. Haberl, J. Greiner, R. Salvaterra, S. Sandrelli, G. Lisini
Discovery of a 0.42-s pulsar in the ultraluminous X-ray source NGC 7793 P13
published pages: L48-L52, ISSN: 1745-3933, DOI: 10.1093/mnrasl/slw218
Monthly Notices of the Royal Astronomical Society: Letters 466/1 2019-06-18
2018 E. Bozzo, A. Bahramian, C. Ferrigno, A. Sanna, J. Strader, F. Lewis, D. M. Russell, T. di Salvo, L. Burderi, A. Riggio, A. Papitto, P. Gandhi, P. Romano
IGR J17329-2731: The birth of a symbiotic X-ray binary
published pages: A22, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201832588
Astronomy & Astrophysics 613 2019-06-18
2017 N. Rea, F. Coti Zelati, P. Esposito, P. D\'Avanzo, D. de Martino, G. L. Israel, D. F. Torres, S. Campana, T. M. Belloni, A. Papitto, N. Masetti, L. Carrasco, A. Possenti, M. Wieringa, E. De Oña Wilhelmi, J. Li, E. Bozzo, C. Ferrigno, M. Linares, T. M. Tauris, M. Hernanz, I. Ribas, M. Monelli, A. Borghese, M. C. Baglio, J. Casares
Multiband study of RX J0838−2827 and XMM J083850.4−282759: a new asynchronous magnetic cataclysmic variable and a candidate transitional millisecond pulsar
published pages: 2902-2916, ISSN: 0035-8711, DOI: 10.1093/mnras/stx1560
Monthly Notices of the Royal Astronomical Society 471/3 2019-06-18
2017 F. Coti Zelati, N. Rea, R. Turolla, J. A. Pons, A. Papitto, P. Esposito, G. L. Israel, S. Campana, S. Zane, A. Tiengo, R. P. Mignani, S. Mereghetti, F. K. Baganoff, D. Haggard, G. Ponti, D. F. Torres, A. Borghese, J. Elfritz
Chandra monitoring of the Galactic Centre magnetar SGR J1745−2900 during the initial 3.5 years of outburst decay
published pages: 1819-1829, ISSN: 0035-8711, DOI: 10.1093/mnras/stx1700
Monthly Notices of the Royal Astronomical Society 471/2 2019-06-18
2017 A. Sanna, A. Papitto, L. Burderi, E. Bozzo, A. Riggio, T. Di Salvo, C. Ferrigno, N. Rea, R. Iaria
Discovery of a new accreting millisecond X-ray pulsar in the globular cluster NGC 2808
published pages: A34, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201629406
Astronomy & Astrophysics 598 2019-06-18

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