LOFT - The large observatory for x-ray timing

M. Feroci, J. W. Den Herder, E. Bozzo, D. Barret, S. Brandt, M. Hernanz, M. Van Der Klis, M. Pohl, A. Santangelo, L. Stella, A. Watts, J. Wilms, S. Zane, M. Ahangarianabhari, A. Alpar, D. Altamirano, L. Alvarez, L. Amati, C. Amoros, N. AnderssonA. Antonelli, A. Argan, R. Artigue, P. Azzarello, G. Baldazzi, S. Balman, M. Barbera, T. Belloni, G. Bertuccio, S. Bianchi, A. Bianchini, P. Bodin, J. M.Bonnet Bidaud, S. Boutloukos, J. Braga, E. Brown, N. Bucciantini, L. Burderi, M. Bursa, C. Budtz-Jørgensen, E. Cackett, F. R. Cadoux, P. Cais, G. A. Caliandro, R. Campana, S. Campana, P. Casella, D. Chakrabarty, J. Chenevez, J. Coker, R. Cole, A. Collura, T. Courvoisier, A. Cros, A. Cumming, G. Cusumano, A. D'Aí, V. D'Elia, E. Del Monte, D. De Martino, A. De Rosa, S. Di Cosimo, S. Diebold, SalvoT Di, I. Donnarumma, A. Drago, M. Durant, D. Emmanoulopoulos, Y. Evangelista, A. Fabian, M. Falanga, Y. Favre, C. Feldman, C. Ferrigno, M. H. Finger, G. W. Fraser, F. Fuschino, D. K. Galloway, J. L.Galvez Sanchez, E. Garcia-Berro, B. Gendre, S. Gezari, A. B. Giles, M. Gilfanov, P. Giommi, G. Giovannini, M. Giroletti, A. Goldwurm, D. Götz, C. Gouiffes, M. Grassi, P. Groot, C. Guidorzi, D. Haas, F. Hansen, D. H. Hartmann, C. A. Haswell, A. Heger, J. Homan, A. Hornstrup, R. Hudec, J. Huovelin, A. Ingram, J. J.M. In't Zand, J. Isern, G. Israel, L. Izzo, P. Jonker, P. Kaaret, V. Karas, D. Karelin, D. Kataria, L. Keek, T. Kennedy, D. Klochkov, W. Kluzniak, K. Kokkotas, S. Korpela, C. Kouveliotou, I. Kreykenbohm, L. M. Kuiper, I. Kuvvetli, C. Labanti, D. Lai, F. K. Lamb, F. Lebrun, D. Lin, D. Linder, G. Lodato, F. Longo, N. Lund, T. J. Maccarone, D. Macera, D. Maier, P. Malcovati, V. Mangano, A. Manousakis, M. Marisaldi, A. Markowitz, A. Martindale, G. Matt, I. M. McHardy, A. Melatos, M. Mendez, S. Migliari, R. Mignani, M. C. Miller, J. M. Miller, T. Mineo, G. Miniutti, S. Morsink, C. Motch, S. Motta, M. Mouchet, F. Muleri, A. J. Norton, M. Nowak, P. O'Brien, M. Orienti, M. Orio, M. Orlandini, P. Orleanski, J. P. Osborne, R. Osten, F. Oze, L. Pacciani, A. Papitto, B. Paul, E. Perinati, V. Petracek, J. Portel, J. Poutanen, D. Psaltis, D. Rambaud, G. Ramsay, M. Rapisarda, A. Rachevski, P. S. Ray, N. Rea, S. Reddy, P. Reig, M. Reina Aranda, R. Remillard, C. Reynolds, P. Rodríguez-Gi, J. Rodriguez, P. Romano, E. M.R. Rossi, F. Ryde, L. Sabau-Graziati, G. Sala, R. Salvaterra, A. Sanna, S. Schanne, J. Schee, C. Schmid, A. Schwenk, A. D. Schwope, J. Y. Seyler, A. Shearer, A. Smith, D. M. Smith, P. J. Smith, V. Sochora, P. Soffitta, P. Soleri, B. Stappers, B. Stelzer, N. Stergioulas, G. Stratta, T. E. Strohmayer, Z. Stuchlik, S. Suchy, V. Sulemainov, T. Takahashi, F. Tamburini, C. Tenzer, L. Tolos, G. Torok, J. M. Torrejon, D. F. Torres, A. Tramacere, A. Trois, S. Turriziani, P. Uter, P. Uttley, A. Vacchi, P. Varniere, S. Vaughan, S. Vercellone, V. Vrba, D. Walton, S. Watanabe, R. Wawrzaszek, N. Webb, N. Weinberg, H. Wende, P. Wheatley, R. Wijers, R. Wijnands, M. Wille, C. A. Wilson-Hodge, B. Winter, K. Wood, G. Zampa, N. Zampa, L. Zampieri, A. Zdziarski, B. Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

33 Scopus citations


The LOFT mission concept is one of four candidates selected by ESA for the M3 launch opportunity as Medium Size missions of the Cosmic Vision programme. The launch window is currently planned for between 2022 and 2024. LOFT is designed to exploit the diagnostics of rapid X-ray flux and spectral variability that directly probe the motion of matter down to distances very close to black holes and neutron stars, as well as the physical state of ultradense matter. These primary science goals will be addressed by a payload composed of a Large Area Detector (LAD) and a Wide Field Monitor (WFM). The LAD is a collimated (<1 degree field of view) experiment operating in the energy range 2-50 keV, with a 10 m2 peak effective area and an energy resolution of 260 eV at 6 keV. The WFM will operate in the same energy range as the LAD, enabling simultaneous monitoring of a few-steradian wide field of view, with an angular resolution of <5 arcmin. The LAD and WFM experiments will allow us to investigate variability from submillisecond QPO's to yearlong transient outbursts. In this paper we report the current status of the project.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2012
Subtitle of host publicationUltraviolet to Gamma Ray
ISBN (Print)9780819491442
StatePublished - 2012
EventSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam, Netherlands
Duration: Jul 1 2012Jul 6 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray


  • Compact objects
  • X-ray imaging
  • X-ray spectroscopy
  • X-ray timing

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