At the origin of the binary systems of stars, a couple’s story

Pairs of massive stars are born and evolve through phases governed by mechanisms that are still poorly understood. By observing these stellar systems during specific phases of their evolution, it is possible to trace their history in order to understand where they come from, and thus better predict their future evolution. Two studies published in the journal Astronomy and Astrophysics […]

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Seminar: “Three years after the detection of gravitational waves: and now?”

  The Paris Diderot Physics UFR is pleased to announce its first general seminar of the 2018-2019 season which will take place on Friday 28 September at 10am, in the Pierre-Gilles de Gennes amphitheatre, Condorcet Building, level -1 The seminar will be given by Matteo Barsuglia of the APC laboratory, which is very involved in UnivEarthS through the projects I13: […]

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ISIS-OG GdR Meeting: Open questions in signal analysis for gravitational astronomy – 8 October 2018

The first observations of advanced LIGO and Virgo mark the advent of a new gravitational astronomy, with great potential for discovery in many fields from fundamental physics to astronomy and cosmology. This will develop over the next few years as data is taken in the future and in the longer term using new ground-based instruments, such as the Einstein telescope, […]

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Reinterpreting Low Frequency LIGO/Virgo Events as Gravitationally-Lensed Magnified Stellar-Mass Black Hole Mergers at Cosmological Distances

Professor George Smoot (Université Paris Diderot, Hong Kong University of Science and Technology, Nazarbayev University, University of California) will give a colloquium entitled “Reinterpreting Low Frequency LIGO/Virgo Events as Gravitationally-Lensed Magnified Stellar-Mass Black Hole Mergers at Cosmological Distances” (abstract below), in Amphitheater Pierre Gilles de Gennes at 11am on Friday, July 6.     Title: Reinterpreting Low Frequency LIGO/Virgo Events as Gravitationally-Lensed Magnified Stellar-Mass Black Hole Mergers at Cosmological Distances  […]

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Gamma-ray bursts and supernovae: from the central engines to the observer

  A four-week scientific program on extreme explosive events (such as gamma-ray bursts, compact object mergers, core-collapse supernovae) is held at Institut d’Astrophysique Spatiale and sponsored by the Ψ2 initiative of the Paris-Saclay University. In this program we aim to bring together and foster interactions between several communities (core collapse supernovae, gamma-ray bursts, neutron star mergers and magnetars). For this […]

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