Exoplanets' formation blocks traced back to a demised celestial body within the Butterfly Nebula's latest JWST picture.
In a groundbreaking discovery, scientists have found cosmic dust particles giving birth to planets around young stars for the first time, using the James Webb Space Telescope (JWST). The discovery was made around the dying star, specifically the bi-polar Butterfly Nebula located approximately 3,400 light-years away in the constellation of Scorpius the Scorpion.
The JWST observations revealed the existence of large dust grains in the Butterfly Nebula, comparable to those found in star- and planet-forming regions. These grains have grown over time, with at least part of their growth due to chemical reactions energized by the white dwarf at the nebula's center.
The dust found in the Butterfly Nebula comes from the deaths of previous generations of stars and may help give birth to a new system of stars and planets in the future. The JWST detected grains of quartz crystals and crystalline silicate dust in the nebula's dusty torus, which are larger than typical interstellar grains.
The PAHs (Polycyclic Aromatic Hydrocarbons) are also present in the Butterfly Nebula. These molecules are suspected of playing a key role in the prebiotic chemistry that can potentially lead to life as we know it. The PAHs exist in flat ring-like structures possibly formed by clashes between bubbles of particles and the gas around the white dwarf.
The new JWST image targets the central torus of the Butterfly Nebula, a region known for its complex chemical reactions. The JWST observations suggest that these reactions play a key role in the chemistry of star- and planet-forming regions. The researcher who led the discovery of these cosmic dust particles is Mikako Matsuura, and these particles were discovered using the Herschel Space Observatory telescope in the past.
Over tens of thousands of years, the brilliance of the Butterfly Nebula will gradually disperse into deep space. The discovery of these cosmic dust particles forming planets around young stars marks an important step in understanding the life cycle of stars and the formation of planetary systems.
The results of the JWST observations of the Butterfly Nebula were reported on Aug. 27 in the journal Monthly Notices of the Royal Astronomical Society. The discovery not only provides valuable insights into the early stages of planet formation but also sheds light on the role of dying stars in the formation of new celestial bodies.
