Spectroscopic Segregation in Binary Systems

Surface segregation in binary alloys

Kh 15d: a Spectroscopic Binary

We present the results of a high-resolution spectroscopic monitoring program of the eclipsing pre–main-sequence star KH 15D that reveal it to be a single-line spectroscopic binary. We find that the best-fit Keplerian model has a period P = 48.38 days, which is nearly identical to the photometric period. Thus, we find the best explanation for the periodic dimming of KH 15D is that the binary mot...

Hydrodynamics of binary fluid phase segregation.

Starting with the Vlasov-Boltzmann equation for a binary fluid mixture, we derive an equation for the velocity field u when the system is segregated into two phases (at low temperatures) with a sharp interface between them. u satisfies the incompressible Navier-Stokes equations together with a jump boundary condition for the pressure across the interface which, in turn, moves with a velocity gi...

Speech Segregation based on Binary Classification

Speech segregation is a fundamental challenge in speech and audio processing. This AFOSR project aimed to develop a speech segregation system that can potentially improve speech intelligibility in noise for human listeners. Motivated by the perceptual principles of auditory scene analysis and the speech intelligibility studies of ideal time-frequency masking, the project sought to develop a cla...

The Ap spectroscopic binary HD 59435 revisited ? , ? ?

HD 59435 is a double-lined spectroscopic binary, one component of which is a magnetic Ap star and the other a G8 or K0 giant (Wade et al. 1996). Both components are very slowly rotating, and the Ap star exhibits spectral lines resolved into their magneti cally-split components. Herein we report additional measurements of the mean magnetic field modulus of the Ap star, measurements of the radial...