Categories: Extrasolar Planets

Large Outer Planets are Rare

One of the big surprises the Universe had in store for extrasolar planet hunters is the number of enormous planets close into their parent stars – the hot Jupiters. Another surprise seems to be how few large planets are found in the outer reaches of a solar system.

The discovery was announced by an international team of astronomers who concluded a three-year survey of 54 young, nearby stars. These should be among the best candidates to have large, Jupiter-sized planets further than 5 astronomical units from their parent stars (1 astronomical unit is the distance from the Earth to the Sun).

They didn’t find a single planet.

Using the European Southern Observatory’s powerful telescopes, such as the 8.2-metre Very Large Telescope (VLT) in Chile, the team had the ability to find outer super Jupiter planets at distances of more than 10 astronomical units from their stars. They had the imaging capability to spot them, but none turned up.

This new data helps astronomers constrain their calculations about where and how giant planets form in other solar systems. They can refine their models to better understand how our own giant planets might have formed.

Original Source: UA News Release

Fraser Cain

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay. Here's a link to my Mastodon account.

Recent Posts

Quantum Correlations Could Solve the Black Hole Information Paradox

The black hole information paradox has puzzled physicists for decades. New research shows how quantum…

15 hours ago

M87 Releases a Rare and Powerful Outburts of Gamma-ray Radiation

In April 2019, the Event Horizon Telescope (EHT) collaboration made history when it released the first-ever…

18 hours ago

Astronomers Find a Black Hole Tipped Over on its Side

Almost every large galaxy has a supermassive black hole churning away at its core. In…

22 hours ago

NASA is Developing Solutions for Lunar Housekeeping’s Biggest Problem: Dust!

Through the Artemis Program, NASA will send the first astronauts to the Moon since the…

2 days ago

Where’s the Most Promising Place to Find Martian Life?

New research suggests that our best hopes for finding existing life on Mars isn’t on…

2 days ago

Can Entangled Particles Communicate Faster than Light?

Entanglement is perhaps one of the most confusing aspects of quantum mechanics. On its surface,…

3 days ago