Webb Captures the 'Treasure Chest' at the Heart of the Carina Nebula
Universe Today
- The James Webb Space Telescope (JWST) has captured a high-resolution image of the "Treasure Chest," a dense gas and dust feature within the Carina Nebula, located 7,500 light-years away.
- The feature resembles a wooden chest with an open lid, containing a cluster of young, brilliant stars.
Nebula Characteristics
- The Carina Nebula (NGC 3324) is approximately 260 light-years across and stands as the nearest high-mass star-forming region in the Milky Way.
- Iconic features like the "Cosmic Cliffs" were formed by ultraviolet radiation and stellar winds from massive stars carving out massive gaseous cavities.
- Eta Carinae, a massive binary system located 39 light-years northwest, plays a significant role in shaping the nebula's structure.
The Treasure Chest Cluster
- The cluster contains roughly 70 stars estimated to be approximately 1.3 million years old.
- The most massive members are rare, hot blue-white O-type stars with surface temperatures of 30,000 Kelvin and masses 19 times that of the Sun.
- Webb’s Near-Infrared Camera (NIRCam) reveals the ethereal glow of these stars within the "cometary globule," a dust cloud structure with a dense head and tail.
- Scientists have identified circumstellar disks around some stars, indicating potential sites for future planet formation.
- The radiation from these young stars will eventually dissipate the surrounding dust, fully revealing the embedded cluster.