105 citations · 276 across the 6 of their papers we have counts for
7 papers
Radiative plasma simulations of black hole accretion flow coronae in the hard and soft states
Joonas Nättilä
Stellar-mass black holes in x-ray binary systems are powered by mass transfer from a companion star. The accreted gas forms an accretion disk around the black hole and emits x-ray…
artpol: Analytical ray-tracing method for spectro-polarimetric properties of accretion disks around Kerr black holes
Vladislav Loktev, Alexandra Veledina, Juri Poutanen +2
Spectro-polarimetric signatures of accretion disks in X-ray binaries and active galactic nuclei contain information about the masses and spins of their central black holes, as well…
Constraining the properties of neutron-star matter with observations
Eemeli Annala, Tyler Gorda, Aleksi Kurkela +2
In this conference-proceedings contribution, we review recent advances in placing model-independent constraints on the properties of cold and dense QCD matter inside neutron stars.…
The direct cooling tail method for X-ray burst analysis to constrain neutron star masses and radii
Valery F. Suleimanov, Juri Poutanen, Joonas Nättilä +3
Determining neutron star (NS) radii and masses can help to understand the properties of matter at supra-nuclear densities. Thermal emission during thermonuclear X-ray bursts from N…
Detection of burning ashes from thermonuclear X-ray bursts
J. J. E. Kajava, J. Nättilä, J. Poutanen +3
When neutron stars (NS) accrete gas from low-mass binary companions, explosive nuclear burning reactions in the NS envelope fuse hydrogen and helium into heavier elements. The resu…
The influence of accretion geometry on the spectral evolution during thermonuclear (type-I) X-ray bursts
Jari J. E. Kajava, Joonas Nättilä, Outi-Marja Latvala +6
Neutron star (NS) masses and radii can be estimated from observations of photospheric radius-expansion X-ray bursts, provided the chemical composition of the photosphere, the spect…