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HSTPROMO Internal Proper-motion Kinematics of Dwarf Spheroidal Galaxies. I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco

Vitral E., van der Marel R. P., Sohn S. T., et al., 2024. ApJ, 970, 1

  • NASA: NASA’s Hubble Traces Dark Matter in Dwarf Galaxy Using Stellar Motions. Jul 11, 2024.
  • ESA: Draco dwarf galaxy. Jul 11, 2024.
  • Hubble site: NASA's Hubble Traces Dark Matter in Dwarf Galaxy Using Stellar Motions. Jul 11, 2024.
  • ESA/Hubble: Draco dwarf galaxy. Jul 11, 2024.


For: An elusive dark central mass in the globular cluster M4

Vitral E., Libralato M., Kremer K., Mamon G., Bellini A., Bedin L., Anderson J., 2023. MNRAS, 522, 5740

  • NASA: NASA's Hubble Hunts for Intermediate-Sized Black Hole Close to Home. May 23, 2023.
  • ESA: Has Gaia found missing link in black hole evolution? May 23, 2023.
  • ESA/Hubble: Has Gaia found missing link in black hole evolution? May 23, 2023.
  • Hubble site: NASA's Hubble Hunts for Intermediate-Sized Black Hole Close to Home. May 23, 2023.
  • CBC: Quirks and Quarks with Bob McDonald: Medium sized black hole in our galactic neighborhood could solve an astronomical puzzle. June 3, 2023.
  • Radiofrance - France Culture: Un potentiel trou noir de taille intermédiaire découvert à 6000 années-lumière de notre planète. May 29, 2023.
  • Centre National de la Recherche Scientifique (CNRS): La nature mystérieuse du coeur de l’amas d'étoiles Messier 4. June 8, 2023.
  • Media INAF: Buchi neri intermedi, ecco l’anello mancante. May 23, 2023.
  • Sky & Telescope: Does This Star Cluster Host a Black Hole in its Core? May 31, 2023.


For: Stellar graveyards: clustering of compact objects in globular clusters NGC 3201 and NGC 6397

Vitral E., Kremer K., Libralato M., Mamon G., Bellini A., 2022. MNRAS, 514, 806

  • Centre National de la Recherche Scientifique (CNRS): Chasser des trous noirs dans un cimetière d'étoiles. June 10, 2022.
  • ESA/Hubble Space Telescope: Twitter post. June 16, 2022.


For: Does NGC 6397 contain an intermediate-mass black hole or a more diffuse inner subcluster?

Vitral E., Mamon G., 2021. A&A, 646, A63

  • The New York Times: Nest of Darkness. March 3, 2021.
  • NASA: Hubble Uncovers Concentration of Small Black Holes. February 11, 2021.
  • ESA/Hubble: Hubble Uncovers Concentration of Small Black Holes. February 11, 2021.
  • Institut d'Astrophysique de Paris: A Graveyard of Stars in the Core of Globular Cluster NGC 6397. February 11, 2021.
  • Centre National de la Recherche Scientifique (CNRS): Découverte d’un cimetière d’étoiles. February 26, 2021.
  • Sorbonne Université: Deux chercheurs à l'Institut d'Astrophysique de Paris découvrent une concentration de petits trous noirs. February 18, 2021.
  • École polytechnique: Discovery of a stellar graveyard. February 23, 2021.
  • Science & Vie: Un curieux essaim de petits trous noirs a été découvert. March 28, 2021.
  • Revista Piauí: Buraco Negro Tamanho M. April, 2021.


For: Master's degree internship

Canada-France-Hawaii Telescope

  • West Hawaii Today: Space rocks — literally and figuratively. July 16, 2018.