Change in the orbital period of a binary system due to an outburst in a windy accretion disc

Abstract

We consider a new mechanism for the removal of the angular momentum from an X-ray binary system and the change in its orbital period - the mass loss in the form of a wind from an accretion disc. Both observations and models predict powerful winds from discs in X-ray transients. We have obtained an analytical estimate for the increase in the orbital period of a binary system with a wind from the disc during an outburst, and quantitative estimates are given for the systems XTE J1118+480, A0620-00 and GRS 1124-68. Resulting rate of period grow is of order of the observed rates of secular decrease in the period. We also compare the predicted rate of change in the period of a binary system due to the flow of matter into the disc and outflow from the second Lagrange point with the observations. It is concluded that the above mechanisms cannot explain the observed secular decrease in the period of the three X-ray Novae, and it is necessary to consider a circumbinary disc that drains the binary's angular momentum.

10 pages, 7 figures, 2 tables, accepted for publication in Astronomy Letters

References in corpus (10)

• Hard-state accretion disk winds from black holes: the revealing case of MAXI J1820+070
• Coronae and Winds from Irradiated Disks in X-ray binaries
• Thermal Disk Winds in X-ray Binaries: Realistic Heating and Cooling Rates Give Rise to Slow, but Massive Outflows
• Constraints on the Size of Extra Dimensions from the Orbital Evolution of Black-Hole X-Ray Binaries
• Extremely fast orbital decay of the black hole X-ray binary Nova Muscae 1991
• Modeling of non-stationary accretion disks in X-ray novae A 0620-00 and GRS 1124-68 during outburst
• Accretion and Outflow in V404 Cyg
• The luminosity dependence of thermally-driven disc winds in low-mass X-ray binaries
• An ionised accretion disc wind in Hercules X-1
• Fast orbital shrinkage of black hole X-ray binaries driven by circumbinary disks

Cited by in corpus (2)

• The $\text{False Widow}$ Link Between Neutron Star X-ray Binaries and Spider Pulsars
• The effect of thermal winds on the outbursts evolution of LMXB systems