Single X-ray Stars
Main article: Single X-ray starIn 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:
“There is not a single crowned head in Europe whose talents or merit would entitle him to be elected a vestryman by the people of any parish in America.”
—Thomas Jefferson (1743–1826)
“Doubt thou the stars are fire,
Doubt that the sun doth move,
Doubt truth to be a liar,
But never doubt I love.”
—William Shakespeare (1564–1616)