Why do low-mass stars become red giants?
Stancliffe, Richard J. ; Chieffi, Alessandro ; Lattanzio, John C. and Church, Ross P. LU
(2009)
In Publications of the Astronomical Society of Australia
26(3).
p.203-208
- Abstract
We revisit the problem of why stars become red giants. We modify the physics of a standard stellar evolution code in order to determine what does and what does not contribute to a star becoming a red giant. In particular, we have run tests to try to separate the effects of changes in the mean molecular weight and in the energy generation. The implications for why stars become red giants are discussed. We find that while a change in the mean molecular weight is necessary (but not sufficient) for a 1-M⊙ star to become a red giant, this is not the case in a star of 5 M⊙. It therefore seems that there may be more than one way to make a giant.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/311600bc-8efd-4367-b868-302e3c4991a4
- author
- Stancliffe, Richard J.
; Chieffi, Alessandro
; Lattanzio, John C.
and Church, Ross P.
LU
- publishing date
- 2009-10-05
- type
- Contribution to journal
- publication status
- published
- keywords
- Stars: evolution
- in
- Publications of the Astronomical Society of Australia
- volume
- 26
- issue
- 3
- pages
- 6 pages
- publisher
- CSIRO Publishing
- external identifiers
-
- scopus:70349554163
- ISSN
- 1323-3580
- DOI
- 10.1071/AS08060
- language
- English
- LU publication?
- no
- id
- 311600bc-8efd-4367-b868-302e3c4991a4
- date added to LUP
- 2019-06-05 14:12:40
- date last changed
- 2022-01-31 21:31:02
@article{311600bc-8efd-4367-b868-302e3c4991a4,
abstract = {{<p>We revisit the problem of why stars become red giants. We modify the physics of a standard stellar evolution code in order to determine what does and what does not contribute to a star becoming a red giant. In particular, we have run tests to try to separate the effects of changes in the mean molecular weight and in the energy generation. The implications for why stars become red giants are discussed. We find that while a change in the mean molecular weight is necessary (but not sufficient) for a 1-M<sub>⊙</sub> star to become a red giant, this is not the case in a star of 5 M<sub>⊙</sub>. It therefore seems that there may be more than one way to make a giant.</p>}},
author = {{Stancliffe, Richard J. and Chieffi, Alessandro and Lattanzio, John C. and Church, Ross P.}},
issn = {{1323-3580}},
keywords = {{Stars: evolution}},
language = {{eng}},
month = {{10}},
number = {{3}},
pages = {{203--208}},
publisher = {{CSIRO Publishing}},
series = {{Publications of the Astronomical Society of Australia}},
title = {{Why do low-mass stars become red giants?}},
url = {{http://dx.doi.org/10.1071/AS08060}},
doi = {{10.1071/AS08060}},
volume = {{26}},
year = {{2009}},
}