888 citations
- Instituto de Astrofísica de CanariasES155 papers
- European Southern ObservatoryCL129 papers
- Universidad de La LagunaES122 papers
- Centre National de la Recherche ScientifiqueFR117 papers
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- Space Telescope Science InstituteUS92 papers
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9 papers · 1 filter
Mass loss and yield uncertainty in low-mass asymptotic giant branch stars
Richard J. Stancliffe, C. Simon Jeffery
We investigate the uncertainty in surface abundances and yields of asymptotic giant branch (AGB) stars. We apply three different mass loss laws to a 1.5 solar mass star of metallic…
Rotational Modulation of the Radio Emission from the M9 Dwarf TVLM 513-46546: Broadband Coherent Emission at the Substellar Boundary?
G. Hallinan, A. Antonova, J. G. Doyle +3
The Very Large Array was used to observe the ultracool, rapidly rotating M9 dwarf TVLM 513-46546 simultaneously at 4.88 GHz and 8.44 GHz. The radio emission was determined to be pe…
Stellar archaeology: the evolving spectrum of FG Sge
C. S. Jeffery, D. Schoenberner
Over an interval of 120 years, the extraordinary object FG Sge has been transformed from a hot post-AGB star to a very luminous cool supergiant. Theoretically, this evolution has b…
Gravity-mode pulsations in subdwarf B stars: a critical test of stellar opacity
C. S. Jeffery, H. Saio
The identification of non-radial g-mode oscillations as the cause of variability in cool subdwarf B stars (PG1716 variables) has been frustrated by a 5 000 K discrepancy between th…
On the angular momentum evolution of merged white dwarfs
K. N. Gourgouliatos, C. S. Jeffery
We study the angular momentum evolution of binaries containing two white dwarfs which merge and become cool helium-rich supergiants. Our object is to compare predicted rotation vel…
Fe-bump instability: the excitation of pulsations in subdwarf B and other low-mass stars
C. S. Jeffery, H. Saio
We consider the excitation of radial and non-radial oscillations in low-mass B stars by the iron-bump opacity mechanism. The results are significant for the interpretation of pulsa…