Volume 434, Number 1, April IV 2005
|Page(s)||L5 - L8|
|Published online||01 April 2005|
Letter to the Editor
A simple model for the complex lag structure of microquasars
Department of Physics & Astronomy, Rochester University, Rochester NY 14627-0171, USA e-mail: email@example.com
Accepted: 6 March 2005
The phase lag structure between the hard and soft X-ray photons observed in GRS 1915+105 and XTE J1550-564 has been said to be “complex” because the phase of the Quasi-Periodic Oscillation fundamental Fourier mode changes with time and because the even and odd harmonics signs behave differently. From simultaneous X-ray and radio observations this seems to be related to the presence of a jet (level of radio emission). We propose a simple idea where a partial absorption of the signal can shift the phases of the Fourier modes and account for the phase lag reversal. We also briefly discuss a possible physical mechanism that could lead to such an absorption of the quasi-periodic oscillation modulation.
Key words: X-rays: binaries / stars: individual: GRS 1915+105, XTE J1550-564 / accretion disks
© ESO, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.