Astroparticles can get trapped in the Earth’s magnetosphere. There are a number of measurements of protons, electrons, heavy ions, solar energetic protons, galactic cosmic rays, as well as positrons in near-Earth space. The high-energy electrons in the Earth’s radiation belts were discovered by the first US satellite Explorer-1, which was designed to study cosmic rays. In the proposed project,...
KM3NeT is an underwater Cherenkov neutrino telescope operating in the abysses of the Mediterranean Sea. It consists of two detectors: one located at 2500m water depth, 40 km offshore South of Toulon (France), in the Ligurian Sea; the other one located at 3500m depth, 90 km offshore South East of Capo Passero (Sicily) in the Ionian Sea.
Each detector is an array of hundreds of mooring lines...
There are still several unanswered fundamental questions concerning our planet and in particular, about the deep Earth, from where we lack direct samples. Geo-neutrinos, electron anti-neutrinos produced in β decays of naturally occurring radioactive isotopes in the Earth, are a unique direct probe of our planet’s interior. If detected, they allow to quantify the amount and distribution of...
In order to detect gravitational waves, Virgo measures extremely small variations in differential elongations of the arms. Sources of geophysical and anthropogenic environmental noises, such as wind and railway traffic, can impact on the detector causing transient sensitivity worsening and gaps in data taking. We review the major sources studied during the last observing run and the more...
The LabEx Univ'EarthS is a research program founded in 2011 that combines the scientific and technical expertise of several laboratories of Université Paris Cité (AIM, APC, IPGP, ONERA) to enhance the development of interdisciplinary projects and outreach initiatives in the fields of Earth and Universe Sciences. Over its >10 years of existence, it has funded about 50 projects involving more...
Eötvös balance is a dipole type gradio-gravitometer. In recent years, simple innovations have increased its sensitivity by two orders of magnitude, making it more sensitive to environmental effects, like pressure changes, Earth-mantle deformation, or earthquake-related events, among others [1]. In this presentation we will show the main elements of the modernisation and show examples of some...
We highlight recent results from geophysical researches and applications conducted via measuring cosmic muons by HUN-REN Wigner RCP and University of Tokyo. Our main infrastructure is the Sakurajima Muography Observatory in Kyushu, Japan. It is a modular system that is operating with muon trackers based on gaseous detectors and scintillators. The SMO is monitoring the mass density changes...
Soil and rocks are not so elastic as expected, both present damped and delayed mechanical behavior, called viscoelasticity or rheology. Deviation of static and dynamic elasticity moduli of rocks can also be explained via rheology, furthemore, long term measurements prove that motion of the soil around underground facilities may be relevant even years after the construction. Although elastic...
