Are most Cataclysmic Variables in Globular Clusters dynamically formed
(2019) In Proceedings of the International Astronomical Union 14(351). p.404-407- Abstract
We have been investigating populations of cataclysmic variables (CVs) in a set of more than 300 globular cluster (GC) models evolved with themoccacode.[-120pt] One of the main questions we have intended to answer is whether most CVs in GCs are dynamically formed or not. Contrary to what has been argued for a long time, we found that dynamical destruction of primordial CV progenitors is much stronger in GCs than dynamical formation of CVs. In particular, we found that, on average, the detectable CV population is predominantly composed of CVs formed via a typical common envelope phase (â 70 per cent). However, core-collapsed models tend to have higher fractions of bright CVs than non-core-collapsed ones, which suggests then that the... (More)
We have been investigating populations of cataclysmic variables (CVs) in a set of more than 300 globular cluster (GC) models evolved with themoccacode.[-120pt] One of the main questions we have intended to answer is whether most CVs in GCs are dynamically formed or not. Contrary to what has been argued for a long time, we found that dynamical destruction of primordial CV progenitors is much stronger in GCs than dynamical formation of CVs. In particular, we found that, on average, the detectable CV population is predominantly composed of CVs formed via a typical common envelope phase (â 70 per cent). However, core-collapsed models tend to have higher fractions of bright CVs than non-core-collapsed ones, which suggests then that the formation of CVs is indeed slightly favoured through strong dynamical interactions in core-collapsed GCs, due to the high stellar densities in their cores.
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- author
- Belloni, Diogo
; Giersz, Mirek
; Sandoval, Liliana E.Rivera
; Askar, Abbas
LU
and Ciecielag, Pawel
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- binaries: general, cataclysmic variables, globular clusters: general, methods: numerical, novae
- in
- Proceedings of the International Astronomical Union
- volume
- 14
- issue
- 351
- pages
- 4 pages
- publisher
- Cambridge University Press
- external identifiers
-
- scopus:85082006886
- ISSN
- 1743-9213
- DOI
- 10.1017/S174392131900718X
- language
- English
- LU publication?
- yes
- id
- 358cf70b-0fd8-4ee3-9966-fdbda842a1da
- date added to LUP
- 2020-04-14 14:08:33
- date last changed
- 2024-03-20 08:47:59
@article{358cf70b-0fd8-4ee3-9966-fdbda842a1da, abstract = {{<p>We have been investigating populations of cataclysmic variables (CVs) in a set of more than 300 globular cluster (GC) models evolved with themoccacode.[-120pt] One of the main questions we have intended to answer is whether most CVs in GCs are dynamically formed or not. Contrary to what has been argued for a long time, we found that dynamical destruction of primordial CV progenitors is much stronger in GCs than dynamical formation of CVs. In particular, we found that, on average, the detectable CV population is predominantly composed of CVs formed via a typical common envelope phase (â 70 per cent). However, core-collapsed models tend to have higher fractions of bright CVs than non-core-collapsed ones, which suggests then that the formation of CVs is indeed slightly favoured through strong dynamical interactions in core-collapsed GCs, due to the high stellar densities in their cores.</p>}}, author = {{Belloni, Diogo and Giersz, Mirek and Sandoval, Liliana E.Rivera and Askar, Abbas and Ciecielag, Pawel}}, issn = {{1743-9213}}, keywords = {{binaries: general; cataclysmic variables; globular clusters: general; methods: numerical; novae}}, language = {{eng}}, number = {{351}}, pages = {{404--407}}, publisher = {{Cambridge University Press}}, series = {{Proceedings of the International Astronomical Union}}, title = {{Are most Cataclysmic Variables in Globular Clusters dynamically formed}}, url = {{http://dx.doi.org/10.1017/S174392131900718X}}, doi = {{10.1017/S174392131900718X}}, volume = {{14}}, year = {{2019}}, }