GARRA, the Relativistic Astrophysics and Radio Astronomy Group at the Instituto Argentino de Radioastronomía (IAR), was founded in April 2000 on the basis of collaborations extending since 1993, and with the objective to further the studies on relativistic astrophysics and cosmology in Argentina. Currently,the group also includes researchers and students from other institutions, notably the Facultad de Cs. Astronómicas y Geofísicas of the University of la Plata.
Members Collaborators


The group work over many topics in current astrophysics: compact objects, i.e. pulsars, black holes, exotic stars; unidentified gamma-ray sources; gamma-ray bursts; sources of high-energy cosmic rays; massive stars; gravitation and cosmology. Some members also do research in foundations of science.

List of topics Publications




  • Jun 10 2015

    Interview to Dr. G. E. Romero by G. Mattei

    Sobre la relación entre la Física y la Filosofía. Se tocan temas como la teoría de cuerdas, Stephen Hawking, el problema ciencia-religión y los científicos-divulgadores.

  • Jun 08 2015

    Journal Club meeting

    The next Journal Club will be held at 11h30 at the conference room of the IAR. The work on magnetic field measurements in the jet base of AGN will be discussed.

  • June 1-2 2015

    Dr. Chat Hull visit

    from the Center for Astrophysics of Harvard will visit us. He'll give two talks related to star formation and the ALMA observatory.


Academic Activities

Graduate and undergraduate courses on different topics of astronomy and astrophysics are given by members of GARRA. In general, these courses are developed at the Facultad de Cs. Astronómicas y Geofísicas,UNLP.

Available courses

Outreach Activities

The group participate in several activities for science popularisation. Here you can find articles, books and broadcast emissions dedicated to the general public.


Forthcoming events

  • Filosodia-Cientifica