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Self-Similar Force-Free Wind From an Accretion Disk
Ramesh Narayan, Jonathan C. McKinney, Alison J. Farmer
We consider a self-similar force-free wind flowing out of an infinitely thin disk located in the equatorial plane. On the disk plane, we assume that the magnetic stream function $P…
On the Physics of Type I X-ray Bursts on Accreting Neutron Stars at High Accretion Rates
Randall L. Cooper, Ramesh Narayan
We investigate the effect of the hot CNO cycle breakout reaction 15O(alpha,gamma)19Ne on the occurrence of type I X-ray bursts on accreting neutron stars. For f_rp <~ 0.1, where f_…
The Spin of the Near-Extreme Kerr Black Hole GRS 1915+105
Jeffrey E. McClintock, Rebecca Shafee, Ramesh Narayan +3
Based on a spectral analysis of the X-ray continuum that employs a fully relativistic accretion-disk model, we conclude that the compact primary of the binary X-ray source GRS 1915…
A Two-Zone Model for Type I X-ray Bursts on Accreting Neutron Stars
Randall L. Cooper, Ramesh Narayan
We construct a two-zone model to describe H and He burning on the surface of an accreting neutron star and use it to study the triggering of type I X-ray bursts. Although highly si…
Oscillations of starless cores
Eric Keto, Avery Broderick, Charles J. Lada +1
If the split, asymmetric molecular spectral line profiles that are seen in many starless cores are interpreted as indicative of global collapse or expansion of the core then one po…