X-ray Astronomy - Single X-ray Stars

Single X-ray Stars

Main article: Single X-ray star

In addition to the Sun there are many unary stars or star systems throughout the galaxy that emit X-rays. β Hydri (G2 IV) is a normal single, post main-sequence subgiant star, Teff = 5800 K. It exhibits coronal X-ray fluxes.

The benefit of studying single stars is that it allows measurements free of any effects of a companion or being a part of a multiple star system. Theories or models can be more readily tested. See, e.g., Betelgeuse, Red giants, and Vega and Altair.

Read more about this topic:  X-ray Astronomy

Famous quotes containing the words single and/or stars:

    What doubts, what hypotheses, what labyrinths of amusement, what fields of disputation, what an ocean of false learning, may be avoided by that single notion of immaterialism!
    George Berkeley (1685–1753)

    The day in his hotness,
    The strife with the palm;
    The night in her silence,
    The stars in their calm . . .
    Matthew Arnold (1822–1888)