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The Large Observatory for X-ray Timing (LOFT)

  • M. Feroci
  • , L. Stella
  • , M. van der Klis
  • , T. J.L. Courvoisier
  • , M. Hernanz
  • , R. Hudec
  • , A. Santangelo
  • , D. Walton
  • , A. Zdziarski
  • , D. Barret
  • , T. Belloni
  • , J. Braga
  • , S. Brandt
  • , C. Budtz-Jørgensen
  • , S. Campana
  • , J. W. den Herder
  • , J. Huovelin
  • , G. L. Israel
  • , M. Pohl
  • , P. Ray
  • A. Vacchi, S. Zane, A. Argan, P. Attinà, G. Bertuccio, E. Bozzo, R. Campana, D. Chakrabarty, E. Costa, A. de Rosa, E. Del Monte, S. Di Cosimo, I. Donnarumma, Y. Evangelista, D. Haas, P. Jonker, S. Korpela, C. Labanti, P. Malcovati, R. Mignani, F. Muleri, M. Rapisarda, A. Rashevsky, N. Rea, A. Rubini, C. Tenzer, C. Wilson-Hodge, B. Winter, K. Wood, G. Zampa, N. Zampa, M. A. Abramowicz, M. A. Alpar, D. Altamirano, J. M. Alvarez, L. Amati, C. Amoros, L. A. Antonelli, R. Artigue, P. Azzarello, M. Bachetti, G. Baldazzi, M. Barbera, C. Barbieri, S. Basa, A. Baykal, R. Belmont, L. Boirin, V. Bonvicini, L. Burderi, M. Bursa, C. Cabanac, E. Cackett, G. A. Caliandro, P. Casella, S. Chaty, J. Chenevez, M. J. Coe, A. Collura, A. Corongiu, S. Covino, G. Cusumano, F. D'Amico, S. Dall'Osso, D. de Martino, G. de Paris, G. Di Persio, T. Di Salvo, C. Done, M. Dovčiak, A. Drago, U. Ertan, S. Fabiani, M. Falanga, R. Fender, P. Ferrando, D. della Monica Ferreira, G. Fraser, F. Frontera, F. Fuschino, J. L. Galvez, P. Gandhi, P. Giommi, O. Godet, E. Göǧüş, A. Goldwurm, D. Götz, M. Grassi, P. Guttridge, P. Hakala, G. Henri, W. Hermsen, J. Horak, A. Hornstrup, J. J.M. in't Zand, J. Isern, E. Kalemci, G. Kanbach, V. Karas, D. Kataria, T. Kennedy, D. Klochkov, W. Kluźniak, K. Kokkotas, I. Kreykenbohm, J. Krolik, L. Kuiper, I. Kuvvetli, N. Kylafis, J. M. Lattimer, F. Lazzarotto, D. Leahy, F. Lebrun, D. Lin, N. Lund, T. Maccarone, J. Malzac, M. Marisaldi, A. Martindale, M. Mastropietro, J. McClintock, I. McHardy, M. Mendez, S. Mereghetti, M. C. Miller, T. Mineo, E. Morelli, S. Morsink, C. Motch, S. Motta, T. Muñoz-Darias, G. Naletto, V. Neustroev, J. Nevalainen, J. F. Olive, M. Orio, M. Orlandini, P. Orleanski, F. Ozel, L. Pacciani, S. Paltani, I. Papadakis, A. Papitto, A. Patruno, A. Pellizzoni, V. Petráček, J. Petri, P. O. Petrucci, B. Phlips, L. Picolli, A. Possenti, D. Psaltis, D. Rambaud, P. Reig, R. Remillard, J. Rodriguez, P. Romano, M. Romanova, T. Schanz, C. Schmid, A. Segreto, A. Shearer, A. Smith, P. J. Smith, P. Soffitta, N. Stergioulas, M. Stolarski, Z. Stuchlik, A. Tiengo, D. Torres, G. Török, R. Turolla, P. Uttley, S. Vaughan, S. Vercellone, R. Waters, A. Watts, R. Wawrzaszek, N. Webb, J. Wilms, L. Zampieri, A. Zezas, J. Ziolkowski
  • Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna
  • National Institute for Nuclear Physics
  • National Institute for Astrophysics
  • University of Amsterdam
  • University of Geneva
  • Institute of Space Studies of Catalonia
  • Czech Technical University in Prague
  • University of Tübingen
  • University College London
  • Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
  • Institute de Recherche en Astrophysique et Planétologie
  • Osservatorio Astronomico di Brera
  • Instituto Nacional de Pesquisas Espaciais
  • Technical University of Denmark
  • SRON Netherlands Institute for Space Research
  • University of Helsinki
  • Naval Research Laboratory
  • Alenia Spazio
  • Polytechnic University of Milan
  • Massachusetts Institute of Technology
  • University of Pavia
  • University of Zielona Gora
  • Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
  • NASA Marshall Space Flight Center
  • University of Gothenburg
  • Sabanci University
  • University of Palermo
  • University of Padua
  • LAM
  • Middle East Technical University
  • Observatoire Astronomique de Strasbourg
  • University of Cagliari
  • Czech Academy of Sciences
  • University of Cambridge
  • University of Southampton
  • CEA Saclay
  • Hebrew University of Jerusalem
  • Durham University
  • University of Ferrara
  • ISSI Bern
  • University of Leicester
  • Japan Aerospace Exploration Agency
  • ASI
  • FINCA
  • UJF Grenoble 1 CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), UMR 5274
  • Max Planck Institute for Extraterrestrial Physics
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Johns Hopkins University
  • University of Crete
  • University of Calgary
  • Harvard-Smithsonian Ctr. Astrophys.
  • University of Groningen
  • University of Maryland, College Park
  • University of Alberta
  • University of Oulu
  • Space Research Centre
  • University of Arizona
  • Foundation for Research and Technology-Hellas
  • Cornell University
  • University of Galway
  • Aristotle University of Thessaloniki
  • Silesian University in Opava
  • ICREA

Research output: Contribution to journalArticlepeer-review

196 Scopus citations

Abstract

High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultradense matter and to black hole masses and spins. A 10 m 2-class instrument in combination with good spectral resolution is required to exploit the relevant diagnostics and answer two of the fundamental questions of the European Space Agency (ESA) Cosmic Vision Theme "Matter under extreme conditions", namely: does matter orbiting close to the event horizon follow the predictions of general relativity? What is the equation of state of matter in neutron stars? The Large Observatory For X-ray Timing (LOFT), selected by ESA as one of the four Cosmic Vision M3 candidate missions to undergo an assessment phase, will revolutionise the study of collapsed objects in our galaxy and of the brightest supermassive black holes in active galactic nuclei. Thanks to an innovative design and the development of large-area monolithic silicon drift detectors, the Large Area Detector (LAD) on board LOFT will achieve an effective area of ~12 m 2 (more than an order of magnitude larger than any spaceborne predecessor) in the 2-30 keV range (up to 50 keV in expanded mode), yet still fits a conventional platform and small/medium-class launcher. With this large area and a spectral resolution of <260 eV, LOFT will yield unprecedented information on strongly curved spacetimes and matter under extreme conditions of pressure and magnetic field strength.

Original languageEnglish
Pages (from-to)415-444
Number of pages30
JournalExperimental Astronomy
Volume34
Issue number2
DOIs
StatePublished - Oct 2012

Keywords

  • Missions
  • X-ray timing
  • black holes
  • compact objects
  • neutron stars

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