All articles tagged with #giant planet
Scientists discovered a giant planet, TOI-6894b, orbiting a tiny red dwarf star, challenging existing theories that such small stars cannot form large planets. This finding suggests that planet formation processes around low-mass stars may be more common and complex than previously thought, prompting further atmospheric studies and theoretical investigations.
Astronomers have discovered a Neptune-sized planet, TOI-1853b, with a density higher than steel, suggesting it may have formed through giant planetary collisions. The planet's mass is almost twice that of any other similar-sized planet known, and its high density indicates a larger fraction of rock than expected. The study connects theories of planet formation in the solar system to the formation of exoplanets, providing new insights into the prevalence of giant impacts in planetary systems throughout the galaxy. Further observations will be conducted to examine the planet's residual atmosphere and composition.
A new study published in Nature Astronomy suggests that giant planets may be responsible for the formation of spiral arms in star systems. The researchers used a computer simulation to model how the gas giant exoplanet MWC 758c could have sculpted the protoplanetary disk in which it resides, stretching the surrounding gas into long arms. The redness of MWC 758c made it difficult to detect, but the team used a red-sensitive telescope to confirm its existence. The findings could help in the search for hidden planets in other stellar systems, with further observations planned using the James Webb Space Telescope.
A new study published in Nature Astronomy suggests that a giant planet, MWC 758c, may be responsible for the spiral arms observed in a distant star system. The gas giant's gravitational pull is believed to have stretched the surrounding gas in the protoplanetary disk, creating the spiral arms. The planet's redness made it difficult to detect, but the researchers used a red-sensitive telescope to confirm its existence. The findings could help in identifying hidden planets in other stellar systems.
A giant planet, MWC 758c, twice the mass of Jupiter, has been discovered within the protoplanetary disk of a very young star system, explaining the presence of swirling spiral arms. The planet's redness raises questions about its temperature and the possibility of it being enshrouded by dust. If the planet is cold, it would challenge current understanding of planet formation, while if it is surrounded by dust, it could contribute to the formation of moons. Further observations using the Large Binocular Telescope Interferometer and the James Webb Space Telescope are planned to investigate these mysteries.
A study using data from NASA's TESS mission has discovered a giant planet in a close orbit around its star, defying expectations that it would have been engulfed by the star's expansion. The planet, known as HD 11755b, is located about 1,400 light-years away and has a mass about 1.5 times that of Jupiter. The findings challenge current theories about the orbital evolution of giant planets around evolved stars and provide insights into the survival of planets in close-in orbits.
Using NASA's TESS, astronomers have discovered a new exoplanet, TOI-4603 b, which is the size of Jupiter and 13 times more massive than the solar system's biggest planet. The planet has a radius of approximately 1.04 Jupiter radii and its mass is estimated to be about 12.89 Jupiter masses, which yields a density at a level of 14.1 g/cm3. The planet orbits its host every 7.24 days, at a distance of some 0.09 AU from it. The orbit of TOI-4603 b is eccentric, suggesting that the planet is likely undergoing the so-called high eccentricity tidal migration.