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:
“Mad about the boy,
I know it’s stupid to be mad about the boy,
I’m so ashamed of it
But must admit
The sleepless nights I’ve had about the boy.
On the Silver Screen
He melts my foolish heart in every single scene.”
—Noël Coward (1899–1973)
“A man gazing on the stars is proverbially at the mercy of the puddles in the road.”
—Alexander Smith (1830–1867)