red dwarf

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red dwarf

Any of a large group of main-sequence stars, mainly M and K stars, that are much cooler, smaller, and less massive than the Sun (about 0.1–0.7 MO ). The convective motion within these stars, in combination with their rotation, generates a magnetic field, and the stars display a range of magnetically initiated phenomena similar to and sometimes more energetic than those occurring on the Sun. These include starspots, flares, and hot chromospheres and coronae. See also flare stars; dwarf star.
References in periodicals archive ?
One of the primary outcomes of the new research highlighted that the planets surrounding red dwarf stars may have exceptionally similar characteristics to planets orbiting solar system stars.
The scientists calculated that elliptical galaxies have more red dwarf stars than predicted.
Red Dwarf star Hattie Hayridge is the main attraction.
com/topic/red-dwarf-star) Red dwarf stars are the most common ones in the universe, so these simulations could potentially apply to many exoplanets and rule them out as worlds that are capable of hosting extraterrestrial life.
An exoplanet orbiting a red dwarf star 40 light-years from Earth may be the new holder of the title best place to look for signs of life beyond the Solar System.
Red dwarf stars are the longest-lived of all the stars.
com/can-planets-near-red-dwarf-stars-support-life-nasa-says-dont-bet-it-2548417) Red dwarf stars give off less energy than other stars do so they might not emit enough energy to keep planets in the traditional habitable zone warm enough.
The Hubble observations revealed that the starlight from the foreground lens system was too faint to be a single star, but it had the brightness expected for two closely orbiting red dwarf stars, which are fainter and less massive than our sun.
Red dwarf stars are smaller, cooler, and fainter than our Sun.
Using their own data as well as the first group's, they found that the observed light curve could be completely accounted for by a simple pair of low-mass red dwarf stars if the stars are assigned a particular orbital motion.
com/can-planets-near-red-dwarf-stars-support-life-nasa-says-dont-bet-it-2548417) Can Planets Near Red Dwarf Stars Support Life?
A pair of yellow giant stars, not too different to our own Sun, are joined by two cooler and smaller red dwarf stars.