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The workplace is the Institute of Planetology and Astrophysics of Grenoble (IPAG, UGA). Around 160 people work at IPAG, including 60 scientists and professors, 30 engineers, technicians, administrative staff and 70 fixed-term contracts, including around 20 post-docs and 30 PhD students. Our research themes cover the formation of stellar and planetary systems, from the initial phases of gravitational collapse, through the physics and chemistry of protostellar disks, to the study of exoplanets. We also work on accretion-ejection processes in young stellar objects and compact objects. Our activities include laboratory measurements, high-performance computing, and design and operation of cutting-edge instruments for space missions and ground-based telescopes, in particular for the future European Extremely Large Telescope (ELT). This postdoctoral contract offers young astronomers the opportunity to work in a world-class research environment and pursue their careers in a very dynamic and competitive field of research. IPAG welcomes applicants from a wide range of backgrounds and experiences. We see gender equality and diversity as a strength and an asset.

VLTI/GRAVITY data exploitation on protoplanetary disks VLTI/GRAVITY data exploitation on protoplanetary disks :

The aim of the postdoctoral contract is to carry out a systematic and homogeneous analysis of the interferometric observations collected at different wavelengths with the near-infrared (GRAVITY, PIONIER) and mid-infrared (MATISSE) instruments of the Very Large Telescope Interferometer (VLTI) of the European Southern Observatory (ESO), to compare them with physical models of radiative transfer and constrain the continuum emission in these spectral regions at the inner edge of the disc, and to combine them with archival data. The aim of the project is to provide, for a wide range of mass, luminosity and age of the central star, a set of measurements of the inner edge of dust disks at different wavelengths and to place constraints on their physical (temperature, density, presence of a dead zone, etc.) and morphological conditions, in order to gain a better understanding of how planets can form on this (sub)astronomical unit scale.

• Better estimation of measurement errors in order to improve the dynamics of the observations (in particular to detect substructures);
• Comparison of the observations with models of the inner edge of disks based on advanced Magneto-Hydro-Dynamics simulations already available in the project;
• Combination with archive data (ALMA, high-resolution spectra, etc.);
• Search for trends with the star's properties (mass, luminosity, age, etc.).

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Interested candidates should send their curriculum vitae, a list of publications, a brief statement of research interests describing their suitability and motivation for the job, and ensure that three letters of recommendation are sent.

• PhD in physics or astronomy, or in a related field relevant to the advertised position
• Expertise in interferometric data analysis required
• Experience in numerical modeling welcome
• Ability to work in a team