All In the Timing
Taking a tape measure to neutron stars
By recording extremely rapid fluctuations in X-ray emissions, a spacecraft is homing in on activity at the surface of neutron stars and testing a key prediction of Einstein’s general theory of relativity.
References:
Markovic, D., and F.K. Lamb. 1998. Lense-thirring precession and QPOs in X-ray binaries. Astrophysical Journal 281(Oct. 20).
Mendez, M., M. van der Klis, et al. 1998. Kilohertz quasi-periodic oscillation peak separation is not constant in the atoll source 4U 1608-52. Astrophysical Journal 281(Oct. 20).
Miller, M.C. 1998. Evidence for antipodal hot spots during X-ray bursts from 4U 1636-536. Astrophysical Journal Letters(Sept. 18).
Sources:
Frederick K. Lamb
University of Illinois at Urbana-Champaign
Department of Physics
1110 West Green Street
Urbana, IL 61801
Mariano Mendez
University of Amsterdam
Astronomical Institute "Anton Pannekoek"
Center for High-Energy Astrophysics
Kruislaan 403
NL-1098 SJ Amsterdam
NetherlandsMichiel van der Klis
University of Amsterdam
Astronomical Institute "Anton Pannekoek"
Center for High-Energy Astrophysics
Kruislaan 403
NL-1098 SJ Amsterdam
NetherlandsFrom Science News, Vol. 154, No. 20, November 14, 1998, p. 318. Copyright Ó 1998 by Science Service.
copyright 1998 ScienceService
