#Neptune jwst full#
Instead of merely observing the exoplanet during its transit, the JWST tracked GJ 1214 b throughout its entire orbit, generating a comprehensive heat map that unveiled both the day and night sides of the planet.Įliza Kempton emphasized the significance of obtaining a full orbit's worth of data, enabling a deeper understanding of how heat distributes across the planet. The recent JWST observations have peeled back this cosmic curtain, providing scientists with unprecedented insights into the planet's composition and behavior. However, until now, GJ 1214 b's atmosphere remained elusive, concealed beneath a dense veil of haze or clouds. With a mass eight times that of Earth and a radius of approximately 2.75 Earth radii, GJ 1214 b possesses an atmosphere composed primarily of water ensconced within a hydrogen-helium envelope, which accounts for a mere 0.05 percent of the planet's total mass. Follow-up observations with the Hubble Space Telescope suggested that this mini-Neptune harbors a thick, steamy atmosphere, earning it the moniker of a water world. Originally detected by the MEarth Project in 2009 using the transit method, GJ 1214 b immediately caught astronomers' attention due to its intriguing characteristics. Their groundbreaking study, titled "A reflective, metal-rich atmosphere for GJ 1214b from its JWST phase curve," was recently published in the esteemed scientific journal Nature, with Eliza Kempton from the University of Maryland leading the research. The team of astronomers chose GJ 1214 b as their target for observation, utilizing the JWST's cutting-edge MIRI and Low-Resolution Spectrometer instruments. Mini-Neptunes, although absent from our Solar System, are an abundant exoplanet type throughout the Milky Way, according to NASA. As NASA's flagship space observatory, the JWST is laser-focused on the study of exoplanets, and its latest findings shed light on the mysterious atmospheres of these distant celestial bodies.
United States Geological Survey, United States Department of the Interior. It empties into the Arkansas River roughly 3 miles (4.8 km) north of Oxford, Kansas in eastern Sumner County. From there, it flows southeast into the Arkansas River Lowlands.
It is formed in southwestern Sedgwick County by the confluence of the North Fork Ninnescah River and the South Fork Ninnescah River. The Ninnescah River originates in the Wellington Lowlands of south-central Kansas. Its entire 56.4-mile (90.8 km) length lies within the U.S. The Ninnescah River is a river in the central Great Plains of North America.
0 kommentar(er)
