• New Branch in Family Tree of Exoplanets Discovered

     Since the mid-1990s, when the first planet around another sun-like star was discovered, astronomers have been amassing what is now a large collection of exoplanets—nearly 3,500 have been confirmed so far. In a new Caltech-led study,…

  • Surprise! When a brown dwarf is actually a planetary mass object

    Sometimes a brown dwarf is actually a planet—or planet-like anyway. A team led by Carnegie’s Jonathan Gagné, and including researchers from the Institute for Research on Exoplanets (iREx) at Université de Montréal, University of California San…

  • New measurements of the WASP-47 System Point to a Puzzling Formation History

    A team led by iREx researcher Lauren Weiss combined measurements from the W. M. Keck Observatory in Hawaii and the Kepler Space Telescope to study the four known planets around WASP-47, a solar-like star located 650…

  • Our Trottier Summer Interns 2017

    iREx will count 6 new researchers this summer. The Trottier summer interns will work from May to August with iREx researchers. These undergraduate students were selected among more than 20 applicants from all over Canada. To…

  • LHS 1140b, another world to study with the Webb Telescope

    An exoplanet a bit bigger and more massive than the Earth was just detected in the habitable zone of its parent star, which is located 41 light-years away. It was possible to measure both the mass…

  • David Lafrenière, recipient of the CASCA Harvey B. Richer Gold Medal

    David Lafrenière, professor at Université de Montréal and member of iREx, is the recipient of the Harvey B. Richer Gold Medal. This Canadian Astronomical Society (CASCA) medal is awarded every two years, and for the first time in…

  • Hunting for giant planet analogs in our own backyard

    There may be a large number of undetected bright, substellar objects similar to giant exoplanets in our own solar neighborhood, according to new work from a team led by Carnegie’s Jonathan Gagné and including researchers from…

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  • Seven Earth-sized planets around the ultra-cool dwarf TRAPPIST-1

    About a year ago, the discovery of 3 Earth-sized planets orbiting the very cold star TRAPPIST-1 stirred excitement in the astronomical community. At a distance of forty light-years, this star is among our nearest celestial neighbours….

  • CRAQ Summer School 2017 “Exoplanet Atmospheres”

    iREx is collaborating to organize this year’s edition of the Centre for Research in Astrophysics of Quebec (CRAQ) Summer School on Exoplanet Atmospheres. The school will take place June 12-14th, in Montreal. Instructors : René Doyon…

  • Exoplanet

    An exoplanet, or extrasolar planet, is an object orbiting another star than our Sun. If such definition seems deceptively simple, the current state of the research is driven by the search of a more refined and…