Physics in Space or Phenomenology and Fundamentals of our Universe Giovanni F. Bignami CESR Toulouse, Univ. Pavia (INAF-INFN). years of naked-eye astronomy. 登封观星台. “De Revolutionibus”. years of astronomy with telescopes. Padova, 1609. years of space astronomy. August 1957 Vostok.
Phenomenology and Fundamentals of ourUniverse
Giovanni F. Bignami
Univ. Pavia (INAF-INFN)
Racing to the Moon
i.e. where is the cosmological antimatter ?
5 106 Km
Laser Interferometer Space Antenna
Everyone hails as a great success a theory which explains < 4% of our Universe.
Dark energy, dark matter
Dark what ?
to accelerate ?
(12 out of 1058 ) from:
The other astronomical neutrino source, the Sun, astronomy :
has also taught us a nice piece of physics (even if it took several decades):
neutrinos oscillate and have mass
(2)g - LPB oscillations
- LPBs are predicted by Standard Model extensions, such as Kaluza-Klein or superstring theories
- Best know LPB is the Peccei-Quinn AXION
- What mass m and what two-photon coupling
constant M for an LPB (axion)?
Zavattini et al (softly) say: astronomy :
m= 10-3 eV
M= 3.8 105 GeV
PRL 96,110406 (2006)
NO by 5 orders of magnitude…
In the sky we can do BETTER than in Legnaro or CERN, thanks to neutron stars, and especially the 0737 binary system
Gamma ray observatories soon to have a look to neutron stars, and especially the 0737 binary system
Quantum vacuum birefringence for B close to Bcrit creates orbital and rotational modulation of X-rays
from the 0737 system
PRL 94,161101 (2005)
QED vacuum effects close to neutron stars, where photons propagate in a highly magnetized vacuum:
Dupays et al PRL submitted orbital and rotational modulation of X-raysQuantum vacuum magnetization has more surprises in store, including for isolated neutron stars:
ESA COSMIC VISION asks orbital and rotational modulation of X-rays
What are the Laws of our Universe?
You have the chance to give an aswer :
watch for ESA AO