I am the leader of the high-energy astrophysics group at the University of Turku. The group’s research is mostly concentrating on accreting black holes and neutron stars.
Among our recent projects on physics of neutron stars, I can mention: (1) development of the atmosphere models for X-ray bursting neutron stars in low-mass X-ray binaries with the aim to determine the equation of state (EoS) of cold dense matter of neutron stars; (2) development of the atmosphere models for rotation-powered millisecond pulsars that are used by the NICER team to constrain the EoS; (3) hydrodynamical models of boundary/spreading layers on weakly magnetized neutron stars to understand the nature of kHz quasi-periodic oscillations; (4) observational studies of X-ray pulsars and ultra-luminous X-ray pulsars, both observationally and theoretically; (5) construction of models for the accretion column and for the accretion disc around magnetized neutron stars; (6) development of models for X-ray polarization from X-ray pulsars, accounting for relativistic motion of the emission region in the case of millisecond pulsars.