We dive back into one of the earliest studies of the outer solar system that helped us understand how four gas giants playing a chaotic game of catch could have knocked Pluto into its topsy-turvy orbit.
While a planet is forming, its passage through the protoplanetary disk can prevent pebbles from migrating inwards and accreting onto the planet.
Using 14 years of high resolution near-infrared imaging, radio observations of molecular gas, and a hydrodynamic simulation the authors show that spiral arms seen in the protoplanetary disk around HD 100453 A are caused by its M-dwarf companion.
How can size ordering of multiplanet systems be used to quantify the information content that these systems may retain about their formation history? Think information entropy.
HIP 65426 b is the first planet discovered with the SPHERE imager on the VLT. It is an intriguing planet for future study of cloud formation but how did it form in the first place?
Microlensing could hold the key to studying planet formation in incredibly crowded regions of the galaxy, and today’s paper shows us how.