Modulation of the Neutron Star Boundary Layer Luminosity by Disk Oscillations

Details Modulation of the Neutron Star Boundary Layer Luminosity by Disk Oscillations Modulation of the Neutron Star Boundary Layer Luminosity by Disk Oscillations

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aca....57....1a&link_type=abstract

Acta Astronomica, Vol. 57, pp.1-10

Astronomy and Astrophysics

Astronomy

5

Stars: Neutron, Stars: Oscillations, Accretion, Accretion Disks

Scientific paper

Paczynski (1987) pointed out that any modulation of the rate at which mass is accreted by a neutron star from the innermost part of a relativistic accretion disk will lead to a modulation of the luminosity of the boundary layer. Following this reasoning, we demonstrate that variability of the boundary layer X-ray flux must necessarily show frequencies of certain global accretion disk oscillations. This theoretical paradigm - clock in the disk, modulation at the boundary layer - resolves one puzzling paradox in the neutron star quasi periodic oscillation (QPO) data.

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