Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Tout, C."'
Autor:
Dorsch, M., Jeffery, C. S., Monai, A. Philip, Tout, C. A., Snowdon, E. J., Monageng, I., Scott, L. J. A., Miszalski, B., Woolf, V. M.
Publikováno v:
A&A 691, A165 (2024)
Magnetic fields with strengths ranging from 300 to 500 kG have recently been discovered in a group of four extremely similar helium-enriched hot subdwarf (He-sdO) stars. Besides their strong magnetic fields, these He-sdO stars are characterised by co
Externí odkaz:
http://arxiv.org/abs/2410.02737
Over the last decade or so, we have been developing the possible existence of highly magnetized white dwarfs with analytical stellar structure models. While the primary aim was to explain the nature of the peculiar overluminous type Ia supernovae, la
Externí odkaz:
http://arxiv.org/abs/2110.15374
We present a detailed study of KIC 2306740, an eccentric double-lined eclipsing binary system. Kepler satellite data were combined with spectroscopic data obtained with the 4.2 m William Herschel Telescope (WHT). This allowed us to determine precise
Externí odkaz:
http://arxiv.org/abs/2102.03027
Wickramasinghe et al. (2014) and Briggs et al. (2015) have proposed that the strong magnetic fields observed in some single white dwarfs (MWDs) are formed by a dynamo driven by differential rotation when two stars, the more massive one with a degener
Externí odkaz:
http://arxiv.org/abs/1801.10044
We estimate the extent of overshooting inwards from the bottom of the intershell convective zone in thermal pulses in (S)AGB stars. We find that the buoyancy is so strong that any overshooting should be negligible. The temperature inversion at the bo
Externí odkaz:
http://arxiv.org/abs/1706.07615
We present the Kepler photometric light-variation analysis of the late-type double-lined binary system V568 Lyr that is in the field of the high metallicity old open cluster NGC 6791. The radial velocity and the high-quality short-cadence light curve
Externí odkaz:
http://arxiv.org/abs/1508.04442
Publikováno v:
2015MNRAS.447.2951W
We consider the blue loops in the Hertzsprung-Russell diagram that occur when intermediate-mass stars begin core helium burning. It has long been known that the excess of helium above the burning shell, the result of the contraction of the convective
Externí odkaz:
http://arxiv.org/abs/1502.04311
We propose a new method to infer the star formation histories of resolved stellar populations. With photometry one may plot observed stars on a colour-magnitude diagram (CMD) and then compare with synthetic CMDs representing different star formation
Externí odkaz:
http://arxiv.org/abs/1308.0945
The helioseismic observations of the internal rotation profile of the Sun raise questions about the two-dimensional (2D) nature of the transport of angular momentum in stars. Here we derive a convective prescription for axisymmetric (2D) stellar evol
Externí odkaz:
http://arxiv.org/abs/1303.0265
Angular momentum loss (AML) mechanisms and dynamical evolution owing to magnetic braking and gravitational radiation in relativistic binary stars (RBS) are studied with use of physical parameters collected from the literature. We have calculated and
Externí odkaz:
http://arxiv.org/abs/0811.0455