... The mass of a star is proportional to the gravity, so when a star gains a huge ... A star can increase in mass by amalgamating with other stars. ... Find an X-ray star that is associated with another star. ...
... HgMn stars are a poorly understood class of chemically peculiar stars, which have ... a HgMn star, and present the most precise abundances yet determined for this star ...
... of Observatory staff currently focus on (i) Stellar and Galactic Astrophysics (including star formation, astrophysical jets, cool stars, hot stars, helium stars, star-spots, stellar flares, circumstellar dust), (ii) the Sun (the dynamic solar atmosphere ...
... The magnetic fields of hot subdwarf stars . ... The normalised fluxes of 18 stars of Table 1 for which new field determinations are ... Detection of magnetic fields has been reported in several sdO and sdB stars. ...
... Star Formation and Magnetohydrodynamics: one begins with clouds of molecules and dust....... one generates jets, shocks, turbulence, disks and protostars........... and one ends up with stars and planets. ...
... By continuously monitoring the same star field on the sky, KEPLER scientists noticed three binary star systems showing an unusual characteristic in their brightness variations, the star system Kepler-16 being the first to be announced with this observed ...
... stars were originally identi ed as sdO(D) stars in the Palomar-Green survey of faint ... stars lie between the high-gravity He-rich sdO stars [2] and the highest gravity EHe ...
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Ссылки http://star.arm.ac.uk/~csj/papers/conference/2002_WD13_hesdb.ps -- 64.5 Кб -- 04.07.2002 Похожие документы
... star can have an observed field structure and surface chemistry · To make observed ... stars · Slow rotation of Ap stars probably due to magnetic coupling with ... star, we use Te, determined from Geneva or uvby photometry · We find luminosity ...
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Ссылки http://star.arm.ac.uk/ssab-workshop/landstreet/Cluster-project.pdf -- 1193.5 Кб -- 26.03.2008 Похожие документы
... know if the star is or was one of a pair -- a binary star -- because such stars can ... star, and short-term changes (pulsations) in response to instabilities in the energy ...
... carbon dust in front of the star and (2) either a few additional optically thick clouds that are outside a direct line from the star to the earth, or an optically thin cloud that surrounds a small fraction of the star and scatters light into the HST field ...