SAX J1808.4-3657 in Quiescence: A Keystone for Neutron Star Science (2007)
Heinke, C. O., Deloye, C. J., Jonker, P. G., Taam, R. E., Wijnands, R.
The accreting millisecond pulsar SAX J1808.4-3658 may be a transition object between accreting X-ray binaries and millisecond radio pulsars. We have constrained the thermal radiation from its surface...
Spitzer Space Telescope Observations of the Magnetic Cataclysmic Variable AE Aqr (2007)
Dubus, G., Taam, R. E., Hull, C., Watson, D. M., Mauerhan, J. C.
The magnetic cataclysmic variable AE Aquarii hosts a rapidly rotating white dwarf which is thought to expel most of the material streaming onto it. Observations of AE Aqr have been obtained in the...
Heinke, C. O., Jonker, P. G., Wijnands, R., Taam, R. E.
Thermal X-ray radiation from neutron star soft X-ray transients in quiescence provides the strongest constraints on the cooling rates of neutron stars, and thus on the interior composition and...
Common Envelope Evolution (2006)
The common envelope phase of binary star evolution plays a central role in many evolutionary pathways leading to the formation of compact objects in short period systems. Using three dimensional...
Willems, B., Kolb, U., Sandquist, E.L., Taam, R.E., Dubus, G.
The population synthesis of cataclysmic variables below the period is investigated. A grid of detailed binary evolutionary sequences has been calculated and included in the simulations to take...
Excess mid-IR emission in Cataclysmic Variables (2006)
Dubus, G., Campbell, R., Kern, B., Taam, R. E., Spruit, H. C.
We present a search for excess mid-IR emission due to circumbinary material in the orbital plane of cataclysmic variables (CVs). Our motivation stems from the fact that the strong braking exerted by...
Of Wolf-Rayet Central Stars and Common Envelopes (2006)
O. De Marco, E. L. Sandquist, M.-M. Mac Low, F. Herwig, R.E. Taam
Of Wolf-Rayet Central Stars and Common Envelopes
Ivanova, N., Heinke, C. O., Rasio, F. A., Taam, R. E., Belczynski, K., Fregeau, J.
In this paper, the first of a series, we study the stellar dynamical and evolutionary processes leading to the formation of compact binaries containing white dwarfs in dense globular clusters. We...
Hot one-temperature accretion flows revisited (2006)
Yuan, F., Taam, R. E., Xue, Y. Q., Cui, W.
The effectiveness of the thermal coupling of ions and electrons in optically thin, hot accretion flows is investigated in a phenomenological approach. In the limit of complete coupling, we focus on...
Hot one-temperature accretion flows revisited (2006)
Yuan, F., Taam, R. E., Xue, Y. Q., Cui, W.
The effectiveness of the thermal coupling of ions and electrons in optically thin, hot accretion flows is investigated in a phenomenological approach. In the limit of complete coupling, we focus on...
New XMM Observations of the Accreting Millisecond X-ray Pulsar SAX J1808.4-3658 in Quiescence (2006)
Heinke, C.O., Wijnands, R.A.D., Jonker, P.G., Taam, R.E.
We have performed a second observation of SAX J1808.4-3658 in quiescence (after the first in 2001, Campana et al. 2002). Reanalyzing both observations, our observation finds SAX J1808.4-3658 at a 30%...
Compact Object Modeling with the StarTrack Population Synthesis Code (2005)
Belczynski, K., Kalogera, V., Rasio, F. A., Taam, R. E., Zezas, A., Bulik, T., ...
We present a comprehensive description of the population synthesis code StarTrack. The original code has been significantly modified and updated. Special emphasis is placed here on processes leading...
Willems, B., Kolb, U., Sandquist, E. L., Taam, R. E., Dubus, G.
The population synthesis of cataclysmic variables below the period is investigated. A grid of detailed binary evolutionary sequences has been calculated and included in the simulations to take...
Willems, B., Kolb, U., Sandquist, E.L., Taam, R.E., Dubus, G.
The population synthesis of cataclysmic variables below the period is investigated. A grid of detailed binary evolutionary sequences has been calculated and included in the simulations to take...
Excess mid-IR emission in Cataclysmic Variables (2004)
Dubus, G., Campbell, R., Kern, B., Taam, R. E., Spruit, H. C.
We present a search for excess mid-IR emission due to circumbinary material in the orbital plane of cataclysmic variables (CVs). Our motivation stems from the fact that the strong braking exerted by...
Excess mid-infrared emission in cataclysmic variables (2004)
Dubus, G., Campbell, R., Kern, B., Taam, R. E., Spruit, H. C.
Excess mid-IR emission in Cataclysmic Variables (2003)
Dubus, G., Campbell, R., Kern, B., Taam, R. E., Spruit, H. C.
We present a search for excess mid-IR emission due to circumbinary material in the orbital plane of cataclysmic variables (CVs). Our motivation stems from the fact that the strong braking exerted by...
O. De Marco, E. L. Sandquist, M. -m. Mac Low, F. Herwig, R. E. Taam
Although single star evolutionary calculations have recently succeeded in reproducing the composition of the hydrogen-de cient Wolf-Rayet (WR) central stars of planetary nebulae, it is clear from the...
O. De Marco, E. L. Sandquist, M. -m. Mac Low, F. Herwig, R. E. Taam
Although single star evolutionary calculations have recently succeeded in reproducing the composition of the hydrogen-deficient Wolf-Rayet (WR) central stars of planetary nebulae, it is clear from...
Of Wolf-Rayet Central Stars and Common Envelopes (2003)
De Marco , O., Herwig , F., Mac Low , M.-M., Sandquist , E. L., Taam , R.E.
The Role of Helium Stars in the Formation of Double Neutron Stars (2002)
Ivanova, N., Belczynski, K., Kalogera, V., Rasio, F. A., Taam, R. E.
We have calculated the evolution of 60 model binary systems consisting of helium stars in the mass range of M_He= 2.5-6Msun with a 1.4Msun neutron star companion to investigate the formation of...
The vertical structure of optically thick accretion disks is investigated in the two-zone approximation. The disk is divided into an underlying disk and a corona, where the latter is defined as the...
The structure and evolution of circumbinary disks in cataclysmic variable systems (2002)
Dubus, G., Taam, R. E., Spruit, H. C.
We investigate the structure and evolution of a geometrically thin, viscous, Keplerian circumbinary (CB) disk, using detailed models of their radiative/convective vertical structure. We use a...
The Structure and Evolution of Circumbinary Disks in Cataclysmic Variable Systems (2001)
Dubus, G., Taam, R. E., Spruit, H. C.
We investigate the structure and evolution of a geometrically thin viscous Keplerian circumbinary (CB) disk, using detailed models of their radiative/convective vertical structure. We use a...
Disks surrounding Cataclysmic Binaries (2001)
Observations of Cataclysmic Variables show a number of phenomena that do not fit easily into the standard magnetic braking scenario. These include the large spread in mass transfer rates, the low...
A Compton Up-scattering Model for Soft Lags in the Lower Kilohertz QPO in 4U1608-52 (2001)
Lee, H. C., Misra, R., Taam, R. E.
An empirical Compton up-scattering model is described which reproduces both the fractional amplitude (RMS) vs. energy and the soft time lags in the 830 Hz QPO observed in 4U1608-52 on Mar. 3, 1996. A...
Hydrodynamical Studies of Wind Accretion Onto Compact Objects: Two-Dimensional Calculations (1996)
Benensohn, J. S., Lamb, D. Q., Taam, R. E.
We present the results of hydrodynamical simulations of nonaxisymmetric gas flow past a gravitating compact object in two dimensions. Calculations were performed with uniform flow as well as with...
GRO J1744-28: Last Gasps of a Dying Low-mass X-ray Binary (1996)
Lamb, D. Q., Miller, M. Coleman, Taam, R. E.
We argue that the bursting, transient X-ray source GRO J1744-28 is a binary consisting of a very low-mass ($M \approx 0.2 M_\sun$), highly evolved giant star that is transferring mass by Roche lobe...
On the nature of the 'anomalous' 6-s X-ray pulsars (1995)
Paradijs, J.A. Van, Taam, R.E., Heuvel, E.P.J. Van Den