Evolution of the Binary Fraction in Dense Stellar Systems (2009)
Fregeau, J. M., Ivanova, N., Rasio, F. A.
Using our recently improved Monte Carlo evolution code, we study the evolution of the binary fraction in globular clusters. In agreement with previous N-body simulations, we find generally that the...
Understanding Compact Object Formation and Natal Kicks: II. The case of XTE J1118+480 (2008)
Fragos, T., Willems, B., Kalogera, V., Ivanova, N., Rockefeller, G., Fryer, C. L., ...
In recent years, an increasing number of proper motions have been measured for Galactic X-ray binaries. When supplemented with accurate determinations of the component masses, orbital period, and...
Ivanova, N., Heinke, C., Rasio, F. A., Belczynski, K., Fregeau, J.
In this paper, the second of a series, we study the stellar dynamical and evolutionary processes leading to the formation of compact binaries containing neutron stars (NSs) in dense globular clusters...
Eccentric double white dwarfs as LISA sources in globular clusters (2007)
Willems, B., Kalogera, V., Vecchio, A., Ivanova, N., Rasio, F. A., Fregeau, J. M., ...
We consider the formation of double white dwarfs (DWDs) through dynamical interactions in globular clusters. Such interactions can give rise to eccentric DWDs, in contrast to the exclusively circular...
Metagenomic and functional analysis of hindgut microbiota of a wood-feeding higher termite (2007)
Warnecke, F., Luginbühl, P., Ivanova, N., Ghassemian, M., Richardson, T. H., Stege, J. T., ...
Use of simulated data sets to evaluate the fidelity of metagenomic processing methods. (2007)
Mavromatis, K., Ivanova, N., Barry, K., Shapiro, H., Goltsman, E., McHardy, Alice, ...
Black Hole Formation in X-Ray Binaries: The Case of XTE J1118+480 (2006)
Fragos, T., Willems, B., Ivanova, N., Kalogera, V.
In recent years, an increasing number of proper motions have been measured for Galactic X-ray binaries. When supplemented with accurate determinations of the component masses, orbital period, and...
Neutron Stars and Black Holes in Star Clusters (2006)
Rasio, F. A., Baumgardt, H., Corongiu, A., D'Antona, F., Fabbiano, G., Fregeau, J. M., ...
This article was co-authored by all invited speakers at the Joint Discussion on `Neutron Stars and Black Holes in Star Clusters,' which took place during the IAU General Assembly in Prague, Czech...
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...
Metagenomic analysis of phosphorus removing sludge communities (2006)
Martin, G, Ivanova, N, Peterson, B, Barry, W, ...
Metagenomic analysis of phosphorus removing sludge communities (2006)
Martin, G, Ivanova, N, Peterson, B, Barry, W, ...
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...
Stellar Collisions and Ultracompact X-ray Binary Formation (2005)
Lombardi Jr., J. C., Proulx, Z. F., Dooley, K. L., Theriault, E. M., Ivanova, N., Rasio, F. A.
(abridged) We report the results of SPH calculations of parabolic collisions between a subgiant or slightly evolved red-giant star and a neutron star (NS). Such collisions are likely to form...
Mavromatis, K., Kuyler Doyle, C., Lykidis, A., Ivanova, N., Francino, P., Chain, P., ...
Ehrlichia canis, a small obligately intracellular, tick-transmitted, gram-negative, α-proteobacterium is the primary etiologic agent of globally distributed canine monocytic ehrlichiosis....
Blecha, L., Ivanova, N., Kalogera, V., Belczynski, K., Fregeau, J., Rasio, F.
While many observed ultra-luminous X-ray sources (ULXs, Lx > 10^39 erg s^-1) could be extragalactic X-ray binaries (XRBs) emitting close to the Eddington limit, the highest-luminosity ULXs (Lx >...
We propose that the shape of the upper-end X-ray luminosity function observed in elliptical galaxies for point sources is a footprint of the black-hole (BH) mass spectrum among old X-ray transients...
Willems, B, Henninger, M, Levin, T, Ivanova, N, Kalogera, V, McGhee, K, ...
In recent years proper-motion measurements have been added to the set of observational constraints on the current properties of Galactic X-ray binaries. We develop an analysis that allows us to...
Formation of Ultracompact X-ray Binaries in Dense Star Clusters (2005)
Ivanova, N., Rasio, F. A., Lombardi, J. C., Dooley, K. L., Proulx, Z. F.
Bright, ultracompact X-ray binaries observed in dense star clusters, such as Galactic globular clusters, must have formed relatively recently, since their lifetimes as persistent bright sources are...
The Evolution of Binary Fractions in Globular Clusters (2005)
Ivanova, N., Belczynski, K., Fregeau, J. M., Rasio, F. A.
We study the evolution of binary stars in globular clusters using a new Monte Carlo approach combining a population synthesis code (StarTrack), and a simple treatment of dynamical interactions in the...
The population of compact binaries in dense stellar systems is affected strongly by frequent dynamical interactions between stars and their interplay with the stellar evolution. In this contribution,...
Willems, B., Henninger, M., Levin, T., Ivanova, N., Kalogera, V., McGhee, K., ...
In recent years proper motion measurements have been added to the set of observational constraints on the current properties of Galactic X-ray binaries. We develop an analysis that allows us to...
Compact binaries in globular clusters (2004)
In dense stellar systems the frequent dynamical interactions between stars play a crucial role in the formation and evolution of compact binaries. We study these processes using a novel approach...
On the Maximum Binary Fraction in Globular Cluster Cores (2003)
Ivanova, N., Belczynski, K., Fregeau, J. M., Rasio, F. A.
We study the evolution of binary stars in globular clusters using a novel approach combining a state-of-the-art population synthesis code with a simple treatment of dynamical interactions in the...
An Observational Diagnostic for Ultraluminous X-Ray Sources (2003)
Kalogera, V., Henninger, M., Ivanova, N., King, A. R.
We consider observational tests for the nature of Ultraluminous X-ray sources (ULXs). These must distinguish between thermal-timescale mass transfer on to stellar-mass black holes leading to...
Sills, A., Deiters, S., Eggleton, P., Freitag, M., Giersz, M., Heggie, D., ...
This is a summary paper of MODEST-2, a workshop held at the Astronomical Institute ``Anton Pannekoek'' in Amsterdam, 16-17 December 2002. MODEST is a loose collaboration of people interested in...
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...
Hydrodynamical simulations of the stream-core interaction in the slow merger of massive stars (2002)
Ivanova, N., Podsiadlowski, P., Spruit, H.
We present detailed simulations of the interaction of a stream emanating from a mass-losing secondary with the core of a massive supergiant in the slow merger of two stars inside a common envelope....
Massive Star Mergers: Induced Mixing and Nucleosynthesis (2001)
Ivanova, N., Podsiadlowski, Ph.
We study the nucleosynthesis and the induced mixing during the merging of massive stars inside a common envelope. The systems of interest are close binaries, initially consisting of a massive red...
Hydrodynamical Simulations of the Stream-Core Interaction in the Slow Merger of Massive Stars (2001)
Ivanova, N., Podsiadlowski, Ph., Spruit, H.
We present detailed simulations of the interaction of a stream emanating from a mass-losing secondary with the core of a massive supergiant in the slow merger of the two stars inside a common...
Common-Envelope Evolution: the Nucleosynthesis in Mergers of Massive Stars (2001)
Ivanova, N., Podsiadlowski, Ph., Spruit, H.
We study the merging of massive stars inside a common envelope for binary systems consisting of a red supergiant with a mass of 15-20 Msun and a main-sequence companion of 1-5 Msun. We are...
The metabolic pathway collection: an update (1997)
Selkov, E, Galimova, M, Goryanin, I, Gretchkin, Y, Ivanova, N, Komarov, Y, ...
The metabolic pathway collection: an update.
Selkov, E, Galimova, M, Goryanin, I, Gretchkin, Y, Ivanova, N, Komarov, Y, ...
The Metabolic Pathway Collection from EMP is an extraction of data from the larger Enzymes and Metabolic Pathways database (EMP). This extraction has been made publicly available in the hope that...
Mavromatis, K., Doyle, C. Kuyler, Lykidis, A., Ivanova, N., Francino, M. P., Chain, P., ...
Ehrlichia canis, a small obligately intracellular, tick-transmitted, gram-negative, α-proteobacterium, is the primary etiologic agent of globally distributed canine monocytic ehrlichiosis. Complete...
The metabolic pathway collection: an update.
Selkov, E, Galimova, M, Goryanin, I, Gretchkin, Y, Ivanova, N, Komarov, Y, ...
The Metabolic Pathway Collection from EMP is an extraction of data from the larger Enzymes and Metabolic Pathways database (EMP). This extraction has been made publicly available in the hope that...
Mavromatis, K., Doyle, C. Kuyler, Lykidis, A., Ivanova, N., Francino, M. P., Chain, P., ...
Ehrlichia canis, a small obligately intracellular, tick-transmitted, gram-negative, α-proteobacterium, is the primary etiologic agent of globally distributed canine monocytic ehrlichiosis. Complete...