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  1. Article

    Open Access

    Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing

    Multiply lensed images of a same source experience a relative time delay in the arrival of photons due to the path length difference and the different gravitational potentials the photons travel through. This ...

    S. Birrer, M. Millon, D. Sluse, A. J. Shajib, F. Courbin… in Space Science Reviews (2024)

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  2. Article

    Open Access

    Microlensing of Strongly Lensed Quasars

    Strong gravitational lensing of quasars has the potential to unlock the poorly understood physics of these fascinating objects, as well as serve as a probe of the lensing mass distribution and of cosmological ...

    G. Vernardos, D. Sluse, D. Pooley, R. W. Schmidt, M. Millon… in Space Science Reviews (2024)

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  3. No Access

    Article

    The New SCIAMACHY Reference Solar Spectral Irradiance and Its Validation

    This paper describes a new reference solar spectrum retrieved from measurements of the satellite instrument SCIAMACHY in the wavelength region from ...

    T. Hilbig, M. Weber, K. Bramstedt, S. Noël, J. P. Burrows, J. M. Krijger… in Solar Physics (2018)

  4. No Access

    Article

    A New Solar Spectrum from 656 to 3088 nm

    The solar spectrum is a key parameter for different scientific disciplines such as solar physics, climate research, and atmospheric physics. The SOLar SPECtrometer (SOLSPEC) instrument of the Solar Monitoring Obs...

    M. Meftah, L. Damé, D. Bolsée, N. Pereira, D. Sluse, G. Cessateur… in Solar Physics (2017)

  5. No Access

    Chapter and Conference Paper

    SWIFT J195509+261406: Dramatic Flaring Activity from a New Galactic Magnetar

    Most of the transient sources that are detected in the gamma-ray sky are produced by extragalactic gamma-ray bursts (GRBs). However, it is known that there are some other astronomical objects that can produce ...

    A. de Ugarte Postigo, A. J. Castro-Tirado… in Highlights of Spanish Astrophysics V (2010)

  6. No Access

    Article

    Flares from a candidate Galactic magnetar suggest a missing link to dim isolated neutron stars

    Two groups report the observation of optical flares from SWIFT J195509.6+261406, an intriguing X-ray source located in our Galaxy and initially discovered as a γ-ray burst by the orbiting Swift observatory. St...

    A. J. Castro-Tirado, A. de Ugarte Postigo, J. Gorosabel, M. Jelínek… in Nature (2008)