Astronomers Directly Image the Youngest Exoplanet Ever

Astronomers have directly imaged the youngest exoplanet ever found, named Elias 2-24 b, located in the Ophiuchus star-forming region. The discovery was made using archival data from the Keck Observatory, ALMA, and the VLT. The planet is orbiting a star at a distance of 30 AU, and its position is precisely in the middle of a gap in the protoplanetary disk. The planet is estimated to be less than a million years old, making it significantly younger than previously known exoplanets. The researchers confirmed the planet's existence by analyzing the relative motion of the light signal between 2018 and 2020, finding that the likelihood of another star causing the signal was negligible.

The researchers also calculated that the planet would be between 1.0 and 4.0 Jupiter masses and have a temperature between 1,300 and 1,600 Kelvin, which is surprisingly hot given its distance from its star. The planet's orbital path is about 1.5° out of 360°, which is too small for current telescopes to measure accurately. However, the authors believe that by 2025, the planet will have moved 6° in its orbit, well within the detection limits of future observatories. This discovery highlights the challenges of finding young exoplanets and provides a new example of planet formation.

The discovery is significant because it shows that planets can form in the early stages of star formation, even when the surrounding disks are still young and obscure the planets. It also demonstrates the power of combining data from multiple telescopes to confirm such findings. The planet is expected to be closely monitored by future instruments as a key example of early-stage planetary formation.

AI-generated summary of the original article — see the source for the full story.