Red giant depletion in globular cluster cores
(2004) In Monthly Notices of the Royal Astronomical Society 348(2). p.679-686- Abstract
- We investigate the observed depletion of red giants in the cores ofpost-core-collapse globular clusters. In particular, the evolutionaryscenario we consider is a binary consisting of two low-mass stars whichundergoes two common-envelope phases. The first common-envelope phaseoccurs when the primary is a red giant resulting in a helium white dwarfand main-sequence star in a detached binary. The second common-envelopephase occurs shortly after the secondary becomes a red giant. During thesecond common-envelope phase, the degenerate helium cores mergeresulting in a core mass greater than the helium burning limit and theformation of a horizontal branch star. We show that stellar encountersenhance this evolutionary route in post-core-collapse... (More)
- We investigate the observed depletion of red giants in the cores ofpost-core-collapse globular clusters. In particular, the evolutionaryscenario we consider is a binary consisting of two low-mass stars whichundergoes two common-envelope phases. The first common-envelope phaseoccurs when the primary is a red giant resulting in a helium white dwarfand main-sequence star in a detached binary. The second common-envelopephase occurs shortly after the secondary becomes a red giant. During thesecond common-envelope phase, the degenerate helium cores mergeresulting in a core mass greater than the helium burning limit and theformation of a horizontal branch star. We show that stellar encountersenhance this evolutionary route in post-core-collapse clusters. Theseencounters increase the population of binary secondaries which wouldhave evolved on to the red giant branch in the recent past. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/129622
- author
- Beer, Martin E and Davies, Melvyn B LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- binaries: close, stars: evolution, globular clusters: general, stars: general
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 348
- issue
- 2
- pages
- 679 - 686
- publisher
- Oxford University Press
- external identifiers
-
- scopus:1442335248
- ISSN
- 1365-2966
- DOI
- 10.1111/j.1365-2966.2004.07380.x
- language
- English
- LU publication?
- yes
- id
- 8dd7c3e4-6567-4edc-99a0-3e35fd1e567a (old id 129622)
- date added to LUP
- 2016-04-01 12:07:16
- date last changed
- 2024-01-08 09:06:25
@article{8dd7c3e4-6567-4edc-99a0-3e35fd1e567a,
abstract = {{We investigate the observed depletion of red giants in the cores ofpost-core-collapse globular clusters. In particular, the evolutionaryscenario we consider is a binary consisting of two low-mass stars whichundergoes two common-envelope phases. The first common-envelope phaseoccurs when the primary is a red giant resulting in a helium white dwarfand main-sequence star in a detached binary. The second common-envelopephase occurs shortly after the secondary becomes a red giant. During thesecond common-envelope phase, the degenerate helium cores mergeresulting in a core mass greater than the helium burning limit and theformation of a horizontal branch star. We show that stellar encountersenhance this evolutionary route in post-core-collapse clusters. Theseencounters increase the population of binary secondaries which wouldhave evolved on to the red giant branch in the recent past.}},
author = {{Beer, Martin E and Davies, Melvyn B}},
issn = {{1365-2966}},
keywords = {{binaries: close; stars: evolution; globular clusters: general; stars: general}},
language = {{eng}},
number = {{2}},
pages = {{679--686}},
publisher = {{Oxford University Press}},
series = {{Monthly Notices of the Royal Astronomical Society}},
title = {{Red giant depletion in globular cluster cores}},
url = {{https://lup.lub.lu.se/search/files/2790116/624106.pdf}},
doi = {{10.1111/j.1365-2966.2004.07380.x}},
volume = {{348}},
year = {{2004}},
}