Optical and UV Light Curves of the Accretion Disk Corona Source 4U 1822-371
Astrophysics
2009-06-23 v1
Abstract
The eclipsing low-mass X-ray binary 4U is the prototypical accretion disk corona (ADC) system. We have obtained new time-resolved UV spectrograms of 4U with the Hubble Space Telescope and new V- and J-band light curves with the 1.3-m SMARTS telescope at CTIO. We present an updated ephemeris for the times of the optical/UV eclipses. Model light curves do not give acceptable fits to the UV eclipses unless the models include an optically-thick ADC.
Keywords
Cite
@article{arxiv.0803.2702,
title = {Optical and UV Light Curves of the Accretion Disk Corona Source 4U 1822-371},
author = {A. J. Bayless and E. L. Robinson and R. I. Hynes and T. A. Ashcraft and M. E. Cornell},
journal= {arXiv preprint arXiv:0803.2702},
year = {2009}
}
Comments
3 pages, 2 figures, from A Population Explosion: The Nature and Evolution of X-ray Binaries in Diverse Environments