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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
  • INAF-IASF
  • INFN Roma Tor Vergata
  • Istituto di Astrofisica e Planetologia Spaziali (IAPS)
  • University of Amsterdam
  • University of Geneva
  • Institut d’Estudis Espacials de Catalunya (IEEC)
  • Czech Technical University in Prague
  • University of Tübingen
  • UCL Mullard Space Science Laboratory
  • Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
  • IRAP/CNRS
  • INAF
  • Instituto Nacional de Pesquisas Espaciais
  • Technical University of Denmark
  • SRON - Netherlands Institute for Space Research
  • University of Helsinki
  • Naval Research Laboratory
  • INFN Sezione di Trieste
  • AIT Thales Alenia Space
  • Politecnico di Milano
  • Massachusetts Institute of Technology
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna
  • University of Pavia
  • University of Zielona Góra
  • ENEA Centro Ricerche Frascati
  • NASA Marshall Space Flight Center
  • Gothenburg University
  • Sabanci University
  • INFN Sezione di Bologna
  • University of Palermo
  • University of Padova
  • LAM
  • Middle East Technical University (METU)
  • Observatoire Astronomique de Strasbourg
  • Universitá di Cagliari
  • Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i.
  • University of Cambridge
  • University of Southampton
  • Institut Pierre Simon Laplace, CNRS and CEA
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo
  • The Hebrew University of Jerusalem
  • Durham University
  • University of Ferrara
  • ISSI Bern
  • University of Leicester
  • Japan Aerospace Exploration Agency
  • ASI
  • FINCA
  • Université Grenoble Alpes
  • Max Planck Institut für Extraterrestrische Physik
  • Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen
  • Johns Hopkins University
  • University of Crete
  • Stony Brook University
  • University of Calgary
  • Center for Astrophysics | Harvard & Smithsonian
  • ICS/University of Groningen
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan
  • University of Maryland, College Park
  • University of Alberta
  • University of Oulu
  • Polish Academy of Sciences
  • University of Arizona
  • Foundation for Research and Technology-Hellas
  • Cornell University
  • IDA Business Park
  • Aristotle University of Thessaloniki
  • Silesian University in
  • Pompeu Fabra University (UPF)

Research output: Contribution to journalArticlepeer-review

197 Citations (Scopus)

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
Publication statusPublished - 1 Oct 2012
Externally publishedYes

Keywords

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

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