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How are solar systems born? - ScienceBlog.com

How are solar systems born?
Many of us remember those school-room models of our Solar System, with tiny wooden planets rotating at the ends of their wires around a bright-orange painted sun. But how accurate is the model? Do the planets really align in a plane, or do their orbits crisscross around the sun at different angles? It turns out the toy isn’t too far off, at least in this one aspect.
Our solar system is actually pretty flat, with most of its planets orbiting within three degrees of the plane of the Earth’s orbit around the sun, called the ecliptic. This flatness extends to the asteroid belt between Mars and Jupiter, though some members of the region of icy objects past Neptune called the Kuiper belt are more extreme, with inclinations up to 30 degrees. ....

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How are solar systems born? | Penn State University

IMAGE: ALMA (ESO/NAOJ/NRAO), I. Czekala and G. Kennedy; NRAO/AUI/NSF, S. Dagnello
“What’s interesting is not just that we see the disk rotating, but that we are starting to sense the ways in which the velocity of the field deviates from its expected rotation at a very subtle level,” said Czekala. “It’s like watching a river flow downstream. Sure, you see the bulk flow of the river, but when you look at the eddies and turbulent waves, you can infer that there might be a submerged rock in one area or even a large underwater cavern in another. It’s what lies underneath that gets me really excited.” ....

Ian Czekala , Kevin Luhman , Rebekah Dawson , James Webb , University Center , Shaffer Career Development Professor In Science , Exoplanet Survey Satellite , Solar System , Penn State , Habitable Worlds , Transiting Exoplanet Survey Satellite , Shaffer Career Development Professor , Assistant Professor , Astrophysics Ian Czekala , Atacama Large , Orion Nebula , James Webb Space Telescope , கெவின் லுஹ்மான் , ரிபிகே டாசன் , ஜேம்ஸ் வலை , பல்கலைக்கழகம் மையம் , ஷாஃபர் தொழில் வளர்ச்சி ப்ரொஃபெஸர் இல் அறிவியல் , சூரிய அமைப்பு , பென் நிலை , ஷாஃபர் தொழில் வளர்ச்சி ப்ரொஃபெஸர் , உதவியாளர் ப்ரொஃபெஸர் ,

Dawson honored with Helen B. Warner Prize for Astronomy

IMAGE: Penn State
The Warner Prize is awarded annually for a significant contribution to observational or theoretical astronomy during the five years preceding the award. It is given to an astronomer resident in North America who has not attained 36 years of age in the year designated for the award or must be within eight years of receipt of their doctorate. This is Dawson’s second AAS prize; she also received the Annie Jump Cannon Award in 2017 for her earlier work modeling the dynamical interactions of exoplanets in multiplanet systems.
“I’m not surprised to see Bekki Dawson honored with another Society prize,” said AAS President Paula Szkody from the University of Washington. “She’s been a rising star in our field since her graduate student days.” ....

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