English
Related papers

Related papers: Properties of Cataclysmic Variables in Globular Cl…

200 papers

Every massive globular cluster (GC) is expected to harbour a significant population of cataclysmic variables (CVs). In this review, I first explain why GC CVs matter astrophysically, how many and what types are theoretically predicted to…

Solar and Stellar Astrophysics · Physics 2012-02-13 Christian Knigge

Based on the current detectable cataclysmic variable (CV) population in Galactic globular clusters (GCs), we show that there is not a clear relation between the number of sources per unit of mass and the stellar encounter rate, the cluster…

Solar and Stellar Astrophysics · Physics 2024-04-08 Liliana Rivera Sandoval , Diogo Belloni , Miriam Ramos Arevalo

The formation and evolution of X-ray sources in globular clusters is likely to be affected by the cluster internal dynamics and the stellar interactions in the cluster dense environment.Several observational studies have revealed a…

Astrophysics of Galaxies · Physics 2016-11-15 Jongsuk Hong , Enrico Vesperini , Diogo Belloni , Mirek Giersz

Dynamical interactions in globular clusters (GCs) significantly impact the formation and evolution of binary sources, including cataclysmic variables (CVs). This study investigates the connection between dynamical states of GCs and X-ray…

High Energy Astrophysical Phenomena · Physics 2024-05-30 Kwangmin Oh , Jongsuk Hong , C. Y. Hui , Sangin Kim , Mirek Giersz

We answer the long-standing question of which production mechanism is responsible for the cataclysmic variables (CVs) in globular clusters. Arguments have been given that range from mostly primordial presence to a significant contribution…

Astrophysics · Physics 2009-11-11 David Pooley , Piet Hut

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, we consider these effects on binaries…

Astrophysics · Physics 2007-05-23 N. Ivanova , F. A. Rasio

We have been investigating populations of cataclysmic variables (CVs) in a set of more than 300 globular cluster (GC) models evolved with the MOCCA code. One of the main questions we have intended to answer is whether most CVs in GCs are…

Astrophysics of Galaxies · Physics 2020-03-18 Diogo Belloni , Mirek Giersz , Liliana E. Rivera Sandoval , Abbas Askar , Pawel Ciecielag

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 examine the processes leading to the…

Astrophysics · Physics 2009-11-11 N. Ivanova , C. O. Heinke , F. A. Rasio , R. E. Taam , K. Belczynski , J. Fregeau

Cataclysmic variables (CVs) are tracers of dynamical evolution in globular clusters. A significant sample has been found by the relatively shallow \Halpha surveys conducted with HST thus far in just three globulars: NGC 6397 (3), NGC 6752…

Astrophysics · Physics 2007-05-23 Jonathan E. Grindlay

We investigate here populations of cataclysmic variables (CVs) in a set of 288 globular cluster (GC) models evolved with the MOCCA code. This is by far the largest sample of GC models ever analysed with respect to CVs. Contrary to what has…

Astrophysics of Galaxies · Physics 2018-12-12 Diogo Belloni , Mirek Giersz , Liliana E. Rivera Sandoval , Abbas Askar , Paweł Ciecieląg

We compare the X-ray spectra and luminosities, in the 2-8 keV band, of known and suspected cataclysmic variables (CVs) in different environments, assessing the nature of these source populations. These objects include nearby CVs observed…

Astrophysics · Physics 2009-06-23 Craig O. Heinke , Ashley J. Ruiter , Michael P. Muno , Krzysztof Belczynski

This is the second in a series of papers associated with cataclysmic variables (CVs) and related objects, formed in a suite of simulations for globular cluster evolution performed with the MOCCA Monte Carlo code. We study the properties of…

Astrophysics of Galaxies · Physics 2016-12-05 Diogo Belloni , Mirek Giersz , Helio J. Rocha-Pinto , Nathan Leigh , Abbas Askar

We know from observations that globular clusters are very efficient catalysts in forming unusual short-period binary systems or their offspring, such as low-mass X-ray binaries (LMXBs; neutron stars accreting matter from low-mass stellar…

Cataclysmic Variables (CVs) should be present in large numbers in Globular Clusters (GCs). Numerous low-luminosity X-ray sources identified over the past few years as candidate CVs in GCs support this notion. Yet, very few "cataclysms," the…

Astrophysics · Physics 2009-11-13 Andrej Dobrotka , Jean-Pierre Lasota , Kristen Menou

The formation of cataclysmic variables (CVs) has long been modeled as a product of common envelope evolution (CEE) in isolated binaries. However, a significant fraction of intermediate-mass stars -- the progenitors of the white dwarfs (WDs)…

Solar and Stellar Astrophysics · Physics 2025-07-14 Cheyanne Shariat , Kareem El-Badry , Smadar Naoz , Antonio C. Rodriguez , Jan van Roestel

Galactic globular clusters are old, dense star systems typically containing 10\super{4}--10\super{7} stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars,…

Solar and Stellar Astrophysics · Physics 2015-05-30 Matthew J. Benacquista , Jonathan M. B. Downing

I review recent work on X-ray sources in Galactic globular clusters, identified with low-mass X-ray binaries (LMXBs), cataclysmic variables (CVs), millisecond pulsars (MSPs) and coronally active binaries by Chandra. Faint transient LMXBs…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Craig O. Heinke

In this third of a series of papers related to cataclysmic variables (CVs) and related objects, we analyse the population of CVs in a set of 12 globular cluster models evolved with the MOCCA Monte Carlo code, for two initial binary…

Astrophysics of Galaxies · Physics 2017-03-07 Diogo Belloni , Mónica Zorotovic , Matthias R. Schreiber , Nathan W. C. Leigh , Mirek Giersz , Abbas Askar

Highly sensitive and precise X-ray imaging from Chandra, combined with the superb spatial resolution of HST optical images, dramatically enhances our empirical understanding of compact binaries such as cataclysmic variables and low mass…

Solar and Stellar Astrophysics · Physics 2015-05-20 Bruce Margon , B. Beck-Winchatz , L. Homer , D. Pooley , C. G. Bassa , S. F. Anderson , W. H. G. Lewin , F. Verbunt , A. K. H. Kong , R. M. Plotkin

It is now widely established that globular clusters host robust populations of white dwarfs, neutron stars, and black holes throughout their lifetimes. Within clusters, dynamical processes enabled by stellar densities thousands to millions…

High Energy Astrophysical Phenomena · Physics 2025-08-21 Kyle Kremer
‹ Prev 1 2 3 10 Next ›