183 citations · 385 across the 10 of their papers we have counts for
10 papers
LOFT: the Large Observatory For X-ray Timing
M. Feroci, J. W. den Herder, E. Bozzo +245
The LOFT mission concept is one of four candidates selected by ESA for the M3 launch opportunity as Medium Size missions of the Cosmic Vision programme. The launch window is curren…
Implications of high-precision spectra of thermonuclear X-ray bursts for determining neutron star masses and radii
M. Coleman Miller, Stratos Boutloukos, Ka Ho Lo +1
X-ray burst spectra have long been used to estimate neutron star masses and radii. These estimates assumed that burst spectra are accurately described by the model atmosphere spect…
Super-Eddington fluxes during thermonuclear X-ray bursts
Stratos Boutloukos, M. Coleman Miller, Frederick K. Lamb
It has been known for nearly three decades that the energy spectra of thermonuclear X-ray bursts are often well-fit by Planck functions with temperatures so high that they imply a…
A model for the waveform behavior of accreting millisecond pulsars: Nearly aligned magnetic fields and moving emission regions
Frederick K. Lamb, Stratos Boutloukos, Sandor Van Wassenhove +5
We investigate further a model of the accreting millisecond X-ray pulsars we proposed earlier. In this model, the X-ray-emitting regions of these pulsars are near their spin axes b…
Implications of kHz QPOs for the spin frequencies and magnetic fields of neutron stars: new results from Circinus X-1
Stratos Boutloukos, Frederick K. Lamb
Detection of paired kilohertz quasi-periodic oscillations (kHz QPOs) in the X-ray emission of a compact object is compelling evidence that the object is an accreting neutron star.…
Accreting Neutron Stars in Low-Mass X-Ray Binary Systems
Frederick K. Lamb, Stratos Boutloukos
Using the Rossi X-ray Timing Explorer (RossiXTE), astronomers have discovered that disk-accreting neutron stars with weak magnetic fields produce three distinct types of high-frequ…
kHz QPO pairs expose the neutron star of Circinus X-1
S. Boutloukos, M. van der Klis, D. Altamirano +2
We discovered kHz QPOs in 80 archived RXTE observations from the peculiar low-mass X-ray binary (LMXB) Circinus X-1. In 11 cases these appear in pairs in the frequency range of ~23…
Eigenmode frequency distribution of rapidly rotating neutron stars
Stratos Boutloukos, Hans-Peter Nollert
We use perturbation theory and the relativistic Cowling approximation to numerically compute characteristic oscillation modes of rapidly rotating relativistic stars which consist o…
The disruption time of clusters in selected regions of four galaxies
Henny J. G. L. M. Lamers, Stratos G. Boutloukos
If the cluster formation rate is constant and the disruption time of clusters depends on their initial mass as t_dis= t_4 x (M_i/10^4 Msun)^gamma, where M_i is the initial mass of…
Star Cluster Formation and Disruption Time-Scales -- I. An empirical determination of the disruption time of star clusters in four galaxies
S. G. Boutloukos, H. J. G. L. M. Lamers
We present a new method to derive the cluster disruption time in selected regions of galaxies from the mass or age distribution of magnitude-limited cluster samples. If the disrupt…