Home
→
Saint Mary's Faculty Articles and Other Works
→
Browsing Saint Mary's Faculty Articles and Other Works by Subject

Browsing Saint Mary's Faculty Articles and Other Works by Subject "Asymptotic giant branch stars"

Now showing items 1-6 of 6

The chemical evolution of globular clusters – II. Metals and fluorine

Sanchez-Blazquez, P.; Marcolini, A.; Gibson, Brad K.; Karakas, A. I.; Pilkington, K.; Calura, F. (Oxford University Press, 2012-01)

In the first paper of this series, we proposed a new framework in which to model the chemical evolution of globular clusters. This model is predicated upon the assumption that clusters form within an interstellar medium ...
Modelling self-pollution of globular clusters from asymptotic giant branch stars

Fenner, Y.; Campbell, S.; Karakas, A. I.; Lattanzio, J. C.; Gibson, Brad K. (Royal Astronomical SocietyOxford University Press, 2004)

A self-consistent model of the chemical evolution of the globular cluster NGC 6752 is presented to test a popular theory that observed abundance anomalies are due to ‘internal pollution’ from intermediate-mass asymptotic ...
Near-infrared speckle interferometry and radiative transfer modelling of the carbon star LP Andromedae

Men'shchikov, A. B.; Balega, Y. Y.; Berger, M.; Driebe, T.; Hofmann, K.-H.; Maximov, A. F.; Schertl, D.; Shenavrin, V. I.; Weigelt, G. (European Southern ObservatoryEDP Sciences, 2006-03)

We present the near-infrared speckle interferometry for LP And in the H and K’ bands with diffraction-limited resolutions of 56 and 72 mas, new JHKLM photometry, and the results of our radiative transfer modelling of this ...
A new synthetic model for asymptotic giant branch stars

Izzard, Robert G.; Tout, Christopher A.; Karakas, A. I.; Pols, Onno R. (Royal Astronomical SocietyOxford University Press, 2004)

We present a synthetic model for thermally pulsing asymptotic giant branch (TPAGB) evolution constructed by fitting expressions to full evolutionary models in the metallicity range 0.0001 [less than or equal to] Z [less ...
Reaction rate uncertainties and the production of [superscript 19]F in asymptotic giant branch stars

Lugaro, Maria; Ugalde, Claudio; Karakas, A. I.; Gorres, Joachim; Wiescher, Michael; Lattanzio, John C.; Cannon, Robert C. (American Astronomical SocietyIOP Publishing, 2004-11-10)

We present nucleosynthesis calculations and the resulting [superscript 19]F stellar yields for a large set of models with different masses and metallicity. During the asymptotic giant branch (AGB) phase, [superscript 19]F ...
The uncertainties in the [superscript 22]Ne+[alpha]-capture reaction rates and the production of the heavy magnesium isotopes in asymptotic giant branch stars of intermediate mass

Karakas, A. I.; Lugaro, M. A.; Wiescher, M.; Gorres, J.; Ugalde, C. (American Astronomical Society, 2006-05-20)

We present new rates for the [superscript 22]Ne([alpha], n)[superscript 25]Mg and [superscript 22]Ne([alpha], [gamma])[superscript 26]Mg reactions, with uncertainties that have been considerably reduced compared to previous ...