Vincent Hocdé

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Degree: Ph.D.

Position: Post-Doc

Division: Astrophysics II (Warsaw)

Office: 126

Phone: +48 223296126

E-mail: vhocde@camk.edu.pl

Vincent Hocdé is a postdoctoral researcher at the Nicolaus Copernicus Astronomical Center (CAMK) in Warsaw.


He graduated from engineering school at Ecole des Mines de Douai (France) in 2015, obtained a Master in Astronomy and Astrophysics at the Paris Observatory from PSL University in 2017. Then he got his Ph.D. in 2020 at the University Côte d'Azur in Nice (France). His doctoral dissertation focused on the circumstellar envelopes of Cepheids and the calibration of distance scale in the Universe. The main goal was to show for the first time that the infrared excess of Cepheids can be explained by a circumstellar envelope of ionized gas. This may potentially affect the measurement of distances in the Universe. During his Ph.D., Dr. Hocdé was also involved in interferometric observations at VLTI in Paranal with the MATISSE science group. This work led to the second paper ever published from MATISSE/VLTI observations. Since his Ph.D. he has been contributing to the MATISSE Science group for interferometric observations in stellar physics.


At the beginning of 2021 he joined CAMK working in the field of Stellar Astrophysics, the team of Prof. Radosław Smolec and his project entitled “Classical Cepheids as testbeds for stellar evolution and pulsation theories” (SONATA BIS project, NCN, 2018/30/E/ST9/00598). This work aims at better understanding the behaviour of Cepheids in particular in the context of the mass discrepancy between pulsation and evolution models. Dr. Hocdé also contributes to the Araucaria project led by Prof. Grzegorz Pietrzyński which aims at refining the extragalactic distance scale lader.


The link to his publications included by the service NASA ADS can be found here.


Research interests
  • Cepheids variable stars – their evolution, pulsation theory, circumstellar envelope,
  • evolved stars as excellent laboratories for testing the stellar theory of evolution and pulsation,
  • cosmic distance scale,
  • cosmology, especially the measurement of the expansion rate of the Universe.