Laboratoire d’Instrumentation et de Recherche en Astrophysique (UMR 8254, Observatoire de Paris, CNRS, Sorbonne Université, Université Paris Cité, CY Paris)
LIRA studies astrophysical objects, from the Solar System to our Galaxy and beyond, through its five thematic poles. Through international collaboration and instrumental innovation, it pushes back the frontiers of science and contributes to the training and dissemination of knowledge.

Scientific departments and services

LIRA
Laboratory
LTE
LaboratoryThe LTE is dedicated to the study and realization of space-time reference systems and their applications to fundamental physics tests, using astrometry, Earth and Moon rotation analysis, time and frequency metrology; it also carries out scientific research in the fields of atomic interferometry and quantum inertial sensors, celestial mechanics, dynamical systems and astronomy. In particular, it aims to improve knowledge of the solar system and its exploration, and carries out research directly necessary to its public service mission. It is also involved in the history of science as it relates to astronomy.

LUX
LaboratoryLaboratoire d’étude de l’Univers et des phénomènes eXtrèmes (UMR 8262, Observatoire de Paris, CNRS, Sorbonne University) addresses a wide range of astrophysical topics, focusing on the study of extreme phenomena and processes at (extra)galactic scales.
covers a wide range of astrophysical topics, focusing on the study of extreme phenomena and processes on (extra)galactic scales, using all the methodologies of modern astrophysics.

UNIDIA
Scientific serviceUNité d’Ingénierie et de Développements Instrumentaux pour l’Astrophysique (CNRS UAR)
prepares, designs, develops and manufactures hardware and software systems for ground and space-based instrumentation, including scientific ground segments, in all wavelength ranges.

ORN
Scientific serviceObservatoire Radioastronomique de Nançay (UAR 704, Observatoire de Paris, CNRS, Université d’Orléans)
operates five low-frequency radio astronomy instruments, providing scientific data to researchers in France and around the world. The ORN is a specialist in instrument design and on-site instrument operation, and a member of the OSUC (Observatoire des Sciences de l’Univers en région Centre), of which the Observatory is secondary supervisor.

UFE
Scientific serviceThe Training and Teaching Unit is responsible for implementing the establishment’s training policy. It manages and coordinates the various distance and classroom-based training courses.