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SIGRAV- Società Italiana di Relatività Generale e Fisica della Gravitazione

SIGRAV is short for Società Italiana di Relatività Generale e Fisica della Gravitazione (i.e. Italian Society of General Relativity and Gravitational Physics).  
It is a scientific association which groups together the various activities in gravitational physics, from theory to observation and detection. 

Image credit: LIGO/Caltech/MIT/Jeff Kissel,https://www.ligo.org/news/images/LIGO_2488-B1-HomePage-NEWS-WEB.jpg
Detector engineers Hugh Radkins (foreground) and Betsy Weaver (background) are pictured here inside the vacuum system of the detector at LIGO Hanford Observatory, beginning the hardware upgrades necessary for Advanced LIGO's third observing run.
Younsi, L. R. Weih, L. Rezzolla (Goethe University Frankfurt)
Snapshot of a general-relativistic magnetohydrodynamic simulation of plasma accreting a rotating supermassive black hole. Shown in red-yellow is the rest-mass density, while shown in white-blue is the magnetisation (ratio between magneti and rest-mass energies). Note the highly turbulent structure of the accretion flow leading to a variable accretion rate. Credits: L. R. Weih, L. Rezzolla (Goethe University Frankfurt)
Credits: Z. Younsi, L. R. Weih, L. Rezzolla (Goethe University Frankfurt)
Radiation field in the radio band (235 GHz) resulting from the accretion flow. The image shows the complex structure that are formed by the bending of light around the black hole. Credits: Z.

SIGRAV activities cover scientific conferences and schools and it ecourages interactions between different areas of gravitational physics. 

Sombrero galaxy
Astrophysics and cosmology
Virgo Detector
Virgo Detector

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