The multi-messenger nuclear physics and astrophysics of neutron stars

Charalampos Moustakidis

Aristotle University of Thessaloniki

Abstrakt: One of the most important problems of nuclear physics and astrophysics is the internal structure of compact objects, including mainly neutron stars, boson stars, white dwarfs and compact dark objects as well. The internal structure of all the above became subject of a thorough study by researchers from different branches of physics including nuclear physics, astrophysics, particle physics, general relativity and thermodynamics. Problems such as a) the composition and properties of dense nuclear matter; b) the existence of exotic phases involving strangeness, such as hyperons, kaon or pion condensates, and deconfined quark matter; c) the possibility of dark matter being absorbed inside them and d) the existence of compact dark objects, all of them today are included in the researcher’s agenda. On the other hand, the accelerated improvement of the research, concerning the study of gravitational waves, has opened important perspectives to study the above theoretical predictions. We expect that in the near future, with the help of the detection of gravitational waves from events associated with compact objects (binary neutron star merger, various instability modes, etc.) and other observations including mainly the X-ray radiation and gamma-rays burst, the theoretical predictions and speculations will be able to be tested, providing us answers to some of the most fundamental problems of physics.  In the present talk I will make an effort to consider and present some of the above important problems and to highlight how they can be addressed from the theoretical and observational point of view.

Seminář se koná v úterý 4. dubna ve 14:00
v zasedací místnosti ÚTEF ČVUT, Praha 1, Husova 240/5.

Ing. Bartoloměj Biskup, Ph.D.
tajemník semináře
doc. Ing. Ivan Štekl, CSc.
ředitel ÚTEF
doc. Dr. André Sopczak
předseda NPS, ČS IEEE

IEEE Czechoslovakia section

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