The European Week of Astronomy and Space Science 2013

Symposium "Extreme physics of neutron stars"

July 10-12, 2013

Neutron stars are the most compact stars in the Universe. The mean density of their matter is a few times higher than in atomic nuclei, and their central density can be 10-20 times higher than in the nuclei (while the matter in atomic nuclei is superdense by itself, with the density of about 300 million tons per cubic centimeter). The main properties of neutron star matter such as its pressure (the equation of state), nuclear composition (nucleons? hyperons? deconfined quarks? mixture of these?), and highest-temperature superfluidity of particles (due to nuclear interactions) are still unknown. These properties represent a long-standing mystery of neutron stars. Its solution would give tremendous impact not only on the neutron star physics but on nuclear physics, physics of strong interactions, particle physics and physics of condensed matter. There is no exact practical theory to calculate the properties of superdense matter; laboratory experiments to study such properties are sparse, very expensive, and cannot reproduce all the conditions. Neutron stars are unique natural laboratories which allow such studies by constructing theoretical models of neutron star structure and evolution, and by comparing theory with observations.

It is the aim of the symposium to discuss current state of art in astrophysical studies of superdense matter in different neutron star manifestations:
from spectroscopy and millisecond coherent oscillations during X-ray bursts;
from pulse profiles of accreting X-ray millisecond pulsars;
from measurements of neutron star masses and radii using various techniques;
from observations of cooling (isolated) ordinary neutron stars and neutron stars with superstrong magnetic fields (magnetars);
by observing quiescent thermal emission in neutron stars which enter soft X-ray transient sources;
from observations of glitches and timing noise of pulsating sources, etc.

Program can be found here


Sessions will cover the following aspects: List of invited speakers: Scientific organizing committee (SOC)
Please register at the main site of EWASS-2013.

Events

Group meeting

Group meetings take place on Wednesdays, 16.15 in the 2nd floor coffee room.

The European Week of Astronomy and Space Science (EWASS) 2013

During EWASS-2013 a few special sessions and symposia were organized by our group. More details below:

1. Symposium "Extreme physics of neutron stars".
2. Symposium "The physics of accretion on compact objects: a multi-messenger approach".

Oulu high-energy astrophysics workshop

April 17, 11:00-17:30. Department of Physics, University of Oulu, room TA219.