Sentences with phrase «cool giant stars»

The dark dust filaments that lace M20 were created in the atmospheres of cool giant stars and in the debris from supernovae explosions.

Not exact matches

The form of Real Madrid goalkeeper Iker Casillas could mean the Spanish giants decide to cool their pursuit of Manchester United star David de Gea.

In short order, astronomically speaking, the red giant blows off its outer layers and leaves behind a white dwarf — essentially the naked heart of the star — which slowly cools to eternal blackness.

This gal thinks scientists are cooler than rock stars: Shirley Ann Jackson, recites Lia in an excited crescendo, «explores the invisible particles that make up everything in the universe, including you and me and your computer and Limburger cheese and the rings of Saturn and even giant squids!»

Their temperatures can range from nearly as hot as a star to as cool as a planet, and their masses also range between star - like and giant planet - like.

Take Mira, a relatively cool, older star known as a red giant, which lies 350 light - years away in the constellation Cetus.

You're seeing cooler red stars and red giants, and you're certainly able to see things that you couldn't see on a visible spectrum [source: IPAC].

These early images, which show giant planets in cool orbits far from the glow of their stars, represent a huge technological leap.

However, we find a significant variation of the fraction of cool dwarfs with galactic latitude, indicating a target selection bias due to interstellar reddening and the increased contamination by giant stars near the galactic plane.

According to Professor Jim Kaler at the University of Illinois» Department of Astronomy, Rana started life as a main sequence F8 dwarf (somewhat hotter and brighter than Sol with slightly greater mass) around 7.5 billion years ago, but core hydrogen fusion has ceased causing the star to expand and cool as an active subgiant before becoming much brighter and larger «as a true giant star» through core helium fusion.

According to astronomer Catherine Pilachowski (who wrote an analysis of HE 0107 - 5240's discovery for Nature), HE 0107 - 5240 contains a «striking excess» of nitrogen and carbon although these elements not usually abundant in stars of the cool, giant family to which the star belongs.

Gacrux is a cool red giant star of spectral and luminosity type M3.5 III (but was once thought to be a «bright giant» of luminosity type II).

This material gathers into huge turbulent reservoirs of cool, low - density gas, extending more than 30 000 light - years from the galaxy's star forming region [3] These turbulent reservoirs of diffuse gas may be of the same nature as the giant glowing haloes seen around distant quasars..

Information about the ang... ▽ More When the core hydrogen is exhausted during stellar evolution, the central region of a star contracts and the outer envelope expands and cools, giving rise to a red giant, in which convection occupies a large fraction of the star.

These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies for several reasons: a) many stars go through a red - giant phase; b) red giants are intrinsically bright; c) large stellar internal structure changes as well as changes in surface chemical abundances take place over relatively short time; d) red - giant stars exhibit global intrinsic oscillations.

Abstract: When the core hydrogen is exhausted during stellar evolution, the central region of a star contracts and the outer envelope expands and cools, giving rise to a red giant, in which convection occupies a large fraction of the star.

As a highly evolved and relatively cool orange - red giant, single star, Pollux is not much like its «twin» star Castor, which is actually composed of three sets of binary stars (as many as four bluish - white, main sequence stars with two fainter companions).