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Simultaneous INTEGRAL and RXTE observations of the accreting millisecond pulsar HETE J1900.1-2455
M. Falanga, J. Poutanen, E. W. Bonning +5
Aims: Hete J1900.1-2455 is the seventh known X-ray transient accreting millisecond pulsar and has been in outburst for more than one year. We compared the data on Hete J1900.1-2455…
Super-critically accreting stellar-mass black holes as ultraluminous X-ray sources
Juri Poutanen, Galina Lipunova, Sergei Fabrika +2
We derive the luminosity-temperature relation for the super-critically accreting black holes (BHs) and compare it to the data on ultraluminous X-ray sources (ULXs). At super-Edding…
Pulse profiles of millisecond pulsars and their Fourier amplitudes
Juri Poutanen, Andrei M. Beloborodov
Approximate analytical formulae are derived for the pulse profile produced by small hot spots on a rapidly rotating neutron star. Its Fourier amplitudes and phases are calculated.…
A warped m=2 water maser disc in V778 Cyg?
Natalia Babkovskaia, Juri Poutanen, Anita M. S. Richards +1
The silicate carbon star V778 Cyg is a source of 22 GHz water maser emission which was recently resolved by MERLIN. Observations revealed an elongated S-like structure along which…
A photon breeding mechanism for the high-energy emission of relativistic jets
Boris E. Stern, Juri Poutanen
We propose a straightforward and efficient mechanism for the high-energy emission of relativistic astrophysical jets associated with an exchange of interacting high-energy photons…
Spectra of the spreading layers on the neutron star surface and constraints on the neutron star equation of state
Valery Suleimanov, Juri Poutanen
Spectra of the spreading layers on the neutron star surface are calculated on the basis of the Inogamov-Sunyaev model taking into account general relativity correction to the surfa…