Elusive exoplanet is 'cosmic sculptor' that carved spiral arms of its star

[Admin]

An exoplanet orbiting a young star is carving out spiral arms in the gas and dust that is birthing its planetary system.

Elusive exoplanet is 'cosmic sculptor' that carved spiral arms of its star : Read more

 

[rod]

"The giant exoplanet MWC 758c offers a glimpse into the birth of alien solar systems."

Interesting report, the reference cited indicated this could be a giant protoplanet forming about 100 au from the parent star. This observation is very different than the arrangement of gas giants in our solar system. I did not find MWC 758c confirmed as an exoplanet yet at these two sites.

The Extrasolar Planets Encyclopaedia

World's most comprehensive interactive database of extrasolar planets updated daily since 1995.

exoplanet.eu

NASA Exoplanet Archive

exoplanetarchive.ipac.caltech.edu

The space.com report states: "In either case, we now know that we need to start looking for redder protoplanets in these systems that have spiral arms," Wagner said. The researchers behind the detection of MWC 758c will now view the exoplanet with the JWST in 2024 in an effort to distinguish between potential scenarios at work in this infant planetary system. "Depending on the results that come from the JWST observations, we can begin to apply this newfound knowledge to other stellar systems," Wagner said, "and that will allow us to make predictions about where other hidden planets might be lurking and will give us an idea as to what properties we should be looking for in order to detect them."

It should be interesting to see what JWST observes and measures for MWC 758 system.

 

[rod]

The exoplanet.eu site shows 3 exoplanets some 90-110 au from the parent stars.

AB Aur b
HD 163296 b
kappa And b

Masses range 1 to 13 Jupiter mass. The host star masses range 2.3 to 2.8 solar masses.

 

[rod]

The NASA site lists 4 exoplanets in the 90-110 au selection range.

AB Aur b
GQ Lup b
HIP 65426 b
VHS J125601.92-125723.9 b

Two of these are listed for small stars, 0.07 solar mass and 0.7 solar mass. Exoplanet mass range 9 to 20 Jupiter masses. Intriguing how small stars can *create* large exoplanets far away from the star.