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Spiders SIGNED

Fundamental Physics Using Black Widow, Redback and Transitional Pulsar Binaries

Total Cost €


EC-Contrib. €






Project "Spiders" data sheet

The following table provides information about the project.


Organization address
address: OXFORD ROAD
postcode: M13 9PL

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 United Kingdom [UK]
 Total cost 1˙995˙655 €
 EC max contribution 1˙995˙655 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-STG
 Funding Scheme ERC-STG
 Starting year 2017
 Duration (year-month-day) from 2017-04-01   to  2022-03-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF MANCHESTER UK (MANCHESTER) coordinator 1˙995˙655.00


 Project objective

I will use an innovative coupled approach to facilitate a paradigm shift in the use of neutron stars as a probe of high energy physics. The compactness, rapid rotation and large magnetic fields of neutron stars make them, along with black holes, the most extreme objects found in our Universe. Neutron stars are therefore formidable laboratories to study fundamental physics, as they allow us to probe regimes simply unavailable to Earth-based experiments. However, in spite of their potential utility, there are still a number of important outstanding questions in this field. Key amongst these are: What is the neutron star equation of state? How do neutron stars become the fastest rotating stellar objects in the Universe? How do millisecond pulsars affect their environment? Answering these questions has a broad multi-disciplinary impact, far beyond the field of neutron star research alone; however, at present our ability to answer these questions is limited by cherry picking individual objects for study. In this proposal I describe how I will move away from the biases inherent in the idiosyncratic nature of particular sources to a comprehensive population analysis, and specifically, how I will use a particular class of neutron star systems, known as “spider binaries”, to discover the most massive and the fastest spinning neutron stars that exist. Such extreme cases are of crucial importance for constraining the neutron star equation of state and thus determining the boundary for stellar mass black hole formation. This knowledge in turn can tell us about possible phase transitions of matter at high densities and provide observable quantities that can then be tested against Earth-based experiments, feeding back into high energy physics theories. I will achieve these goals through a transformational observational approach to finding new spider systems and drawing on innovative techniques from other fields to improve parameter estimation.


year authors and title journal last update
List of publications.
2019 L. Nieder, C. J. Clark, C. G. Bassa, J. Wu, A. Singh, J. Y. Donner, B. Allen, R. P. Breton, V. S. Dhillon, H.-B. Eggenstein, J. W. T. Hessels, M. R. Kennedy, M. Kerr, S. Littlefair, T. R. Marsh, D. Mata Sánchez, M. A. Papa, P. S. Ray, B. Steltner, J. P. W. Verbiest
Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952−0607
published pages: 42, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab357e
The Astrophysical Journal 883/1 2020-04-24
2020 K M Rajwade, M B Mickaliger, B W Stappers, C G Bassa, R P Breton, A Karastergiou, E F Keane
Limits on absorption from a 332-MHz survey for fast radio bursts
published pages: 4418-4427, ISSN: 0035-8711, DOI: 10.1093/mnras/staa616
Monthly Notices of the Royal Astronomical Society 493/3 2020-04-24
2019 J Casares, T Muñoz-Darias, D Mata Sánchez, P A Charles, M A P Torres, M Armas Padilla, R P Fender, J García-Rojas
Accretion and outflow in V404 Cyg
published pages: 1356-1365, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1793
Monthly Notices of the Royal Astronomical Society 488/1 2020-04-24
2018 F Jiménez-Ibarra, T Muñoz-Darias, M Armas Padilla, D M Russell, J Casares, M A P Torres, D Mata Sánchez, P G Jonker, F Lewis
The complex evolution of the X-ray binary transient MAXI J1807+132 along the decay of its discovery outburst
published pages: 2078-2088, ISSN: 0035-8711, DOI: 10.1093/mnras/sty3457
Monthly Notices of the Royal Astronomical Society 484/2 2020-04-24
2019 S. ter Veen, J. E. Enriquez, H. Falcke, J. P. Rachen, M. van den Akker, P. Schellart, A. Bonardi, R. P. Breton, J. W. Broderick, S. Corbel, A. Corstanje, J. Eislöffel, J.-M. Grießmeier, J. R. Hörandel, A. J. van der Horst, C. J. Law, J. van Leeuwen, A. Nelles, L. Rossetto, A. Rowlinson, T. Winchen, P. Zarka
The FRATS project: real-time searches for fast radio bursts and other fast transients with LOFAR at 135 MHz
published pages: A57, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201732515
Astronomy & Astrophysics 621 2020-04-24
2019 E J Polzin, R P Breton, B W Stappers, B Bhattacharyya, G H Janssen, S Osłowski, M S E Roberts, C Sobey
Long-term variability of a black widow’s eclipses – A decade of PSR J2051$-$0827
published pages: 889-908, ISSN: 0035-8711, DOI: 10.1093/mnras/stz2579
Monthly Notices of the Royal Astronomical Society 490/1 2020-04-24
2020 Guillaume Voisin, René P Breton, Charlotte Summers
A spider timing model: accounting for quadrupole deformations and relativity in close pulsar binaries
published pages: 1550-1565, ISSN: 0035-8711, DOI: 10.1093/mnras/stz3430
Monthly Notices of the Royal Astronomical Society 492/2 2020-04-24
2019 T. Muñoz-Darias, F. Jiménez-Ibarra, G. Panizo-Espinar, J. Casares, D. Mata Sánchez, G. Ponti, R. P. Fender, D. A. H. Buckley, P. Garnavich, M. A. P. Torres, M. Armas Padilla, P. A. Charles, J. M. Corral-Santana, J. J. E. Kajava, E. J. Kotze, C. Littlefield, J. Sánchez-Sierras, D. Steeghs, J. Thomas
Hard-state Accretion Disk Winds from Black Holes: The Revealing Case of MAXI J1820+070
published pages: L4, ISSN: 2041-8213, DOI: 10.3847/2041-8213/ab2768
The Astrophysical Journal 879/1 2020-04-24
2020 E J Polzin, R P Breton, B Bhattacharyya, D Scholte, C Sobey, B W Stappers
Study of spider pulsar binary eclipses and discovery of an eclipse mechanism transition
published pages: , ISSN: 0035-8711, DOI: 10.1093/mnras/staa596
Monthly Notices of the Royal Astronomical Society 2020-04-24
2018 Colin J. Clark, Holger J. Pletsch, Jason Wu, Lucas Guillemot, Matthew Kerr, Tyrel J. Johnson, Fernando Camilo, David Salvetti, Bruce Allen, David Anderson, Carsten Aulbert, Christian Beer, Oliver Bock, Andres Cuéllar, Heinz-Bernd Eggenstein, Henning Fehrmann, Michael Kramer, Shawn A. Kwang, Bernd Machenschalk, Lars Nieder, Markus Ackermann, Marco Ajello, Luca Baldini, Jean Ballet, Guido Barbiellini, Denis Bastieri, Ronaldo Bellazzini, Elisabetta Bissaldi, Roger D. Blandford, Elliott D. Bloom, Raffaella Bonino, Eugenio Bottacini, Terri J. Brandt, Johan Bregeon, Philippe Bruel, Rolf Buehler, Toby H. Burnett, Sara Buson, Rob A. Cameron, Regina Caputo, Patrizia A. Caraveo, Elisabetta Cavazzuti, Claudia Cecchi, Eric Charles, Alexandre Chekhtman, Stefano Ciprini, Lynn R. Cominsky, Denise Costantin, Sara Cutini, Filippo D’Ammando, Andrea De Luca, Rachele Desiante, Leonardo Di Venere, Mattia Di Mauro, Niccolò Di Lalla, Seth W. Digel, Cecilia Favuzzi, Elizabeth C. Ferrara, Anna Franckowiak, Yasushi Fukazawa, Stefan Funk, Piergiorgio Fusco, Fabio Gargano, Dario Gasparrini, Nico Giglietto, Francesco Giordano, Marcello Giroletti, Germán A. Gomez-Vargas, David Green, Isabelle A. Grenier, Sylvain Guiriec, Alice K. Harding, John W. Hewitt, Deirdre Horan, Guðlaugur Jóhannesson, Shiki Kensei, Michael Kuss, Giovanni La Mura, Stefan Larsson, Luca Latronico, Jian Li, Francesco Longo, Francesco Loparco, Michael N. Lovellette, Pasquale Lubrano, Jeffrey D. Magill, Simone Maldera, Alberto Manfreda, Mario N. Mazziotta, Julie E. McEnery, Peter F. Michelson, Nestor Mirabal, Warit Mitthumsiri, Tsunefumi Mizuno, Maria Elena Monzani, Aldo Morselli, Igor V. Moskalenko, Eric Nuss, Takashi Ohsugi, Nicola Omodei, Monica Orienti, Elena Orlando, Michele Palatiello, Vaidehi S. Paliya, Francesco de Palma, David Paneque, Jeremy S. Perkins, Massimo Persic, Melissa Pesce-Rollins, Troy A. Porter, Giacomo Principe, Silvia Rainò, Riccardo Rando, Paul S. Ray, Massimiliano Razzano, Anita Reimer, Olaf Reimer, Roger W. Romani, Pablo M. Saz Parkinson, Carmelo Sgrò, Eric J. Siskind, David A. Smith, Francesca Spada, Gloria Spandre, Paolo Spinelli, Jana B. Thayer, David J. Thompson, Diego F. Torres, Eleonora Troja, Giacomo Vianello, Kent Wood, Matthew Wood
Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
published pages: eaao7228, ISSN: 2375-2548, DOI: 10.1126/sciadv.aao7228
Science Advances 4/2 2020-02-25
2018 J W Broderick, R P Fender, J C A Miller-Jones, S A Trushkin, A J Stewart, G E Anderson, T D Staley, K M Blundell, M Pietka, S Markoff, A Rowlinson, J D Swinbank, A J van der Horst, M E Bell, R P Breton, D Carbone, S Corbel, J Eislöffel, H Falcke, J-M Grießmeier, J W T Hessels, V I Kondratiev, C J Law, G J Molenaar, M Serylak, B W Stappers, J van Leeuwen, R A M J Wijers, R Wijnands, M W Wise, P Zarka
LOFAR 150-MHz observations of SS 433 and W 50
published pages: 5360-5377, ISSN: 0035-8711, DOI: 10.1093/mnras/sty081
Monthly Notices of the Royal Astronomical Society 475/4 2020-02-25
2018 M R Kennedy, C J Clark, G Voisin, R P Breton
Kepler K2 observations of the transitional millisecond pulsar PSR J1023+0038
published pages: 1120-1132, ISSN: 0035-8711, DOI: 10.1093/mnras/sty731
Monthly Notices of the Royal Astronomical Society 477/1 2020-02-25
2018 E J Polzin, R P Breton, A O Clarke, V I Kondratiev, B W Stappers, J W T Hessels, C G Bassa, J W Broderick, J-M Grießmeier, C Sobey, S ter Veen, J van Leeuwen, P Weltevrede
The low-frequency radio eclipses of the black widow pulsar J1810+1744
published pages: 1968-1981, ISSN: 0035-8711, DOI: 10.1093/mnras/sty349
Monthly Notices of the Royal Astronomical Society 476/2 2020-02-25
2017 C. G. Bassa, Z. Pleunis, J. W. T. Hessels, E. C. Ferrara, R. P. Breton, N. V. Gusinskaia, V. I. Kondratiev, S. Sanidas, L. Nieder, C. J. Clark, T. Li, A. S. van Amesfoort, T. H. Burnett, F. Camilo, P. F. Michelson, S. M. Ransom, P. S. Ray, K. Wood
LOFAR Discovery of the Fastest-spinning Millisecond Pulsar in the Galactic Field
published pages: L20, ISSN: 2041-8213, DOI: 10.3847/2041-8213/aa8400
The Astrophysical Journal 846/2 2020-02-25

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