Beta Pictoris d is identified by James Webb and VLT
Beta Pictoris d was identified by independent teams with James Webb and VLT, after years hidden in the data.
TL;DR
- Beta Pictoris d, a giant exoplanet, has been discovered in the Beta Pictoris system, hidden for over a decade.
- The discovery was made independently by teams using the James Webb Space Telescope (Webb) and the Very Large Telescope (VLT).
- Webb identified the planet by analyzing the chemical 'fingerprint' of its atmosphere, detecting carbon monoxide, water vapor, and methane.
- The VLT team identified the planet through direct imaging and analysis of historical data from over a decade ago.
- Beta Pictoris d is a gas giant with at least twice the mass of Jupiter and orbits its star at a distance comparable to Neptune's orbit in our solar system.
- The Beta Pictoris system now has three known exoplanets: Beta Pictoris b, c, and d, making it one of only two known systems with at least three directly observed exoplanets.
- The discovery demonstrates the value of combining different observation techniques and re-analyzing old data with new tools.