Sentences with phrase «of the planet formation»

«The surprising part is how well it fit into our understanding of the dynamics of planet formation,» said Mojzsis, referring to the theoretical impact.

«Finding systems like this that have lots of planets is a really neat way to test theories of planet formation and evolution,» says Jeff Coughlin, an astronomer at the SETI Institute in Mountain View, Calif., and NASA's Ames Research Center in Moffett Field, Calif..

Moulton, an astronomer from the University of Chicago known for the planetesimal theory of planet formation, served as AAAS Permanent Secretary and then Administrative Secretary, 1937 to 1948.

«The results show that evaporation at high temperatures, similar to those at the beginning of planet formation, leads to the loss of volatile elements and to enrichment in heavy isotopes in the left over materials from the event,» said Day, a Scripps geoscientist and lead author of the study.

The bulk of the solar system's regular satellites — those moons that stick close to their planets in roughly equatorial orbits — formed this way, rather than taking shape simultaneously with the planets as a direct result of planet formation, French astrophysicists have concluded.

The opportunity to study discs that existed so long ago could help reveal how the rate of planet formation across the universe has changed over time, says Mentuch.

«Finding a new dwarf planet beyond Neptune sheds light on the early phases of planet formation,» said Brett Gladman, the Canada Research Chair in planetary astronomy at UBC.

That is why the timing and the scale of planet formation — fast or slow, big or small — is a critical issue.

On average, the disks studied by Spitzer turn out to be 100 million years old, one hundred times the duration of planet formation implied by the Cohen - Kuhi Tau / 4 results.

Detecting water affirms that models of planet formation are on the right track and bolsters astronomers» confidence that they can tackle such challenging measurements, Tinetti says.

When 51 Peg came along, we were forced to admit that migration was going to be a big part of the planet formation process.

The seeming abundance of rocky super-Earths lends support to the core accretion model of planet formation, in which small rocky bodies collide and clump together to grow into these objects.

Scott Kenyon, a theorist at the Harvard — Smithsonian Center for Astrophysics who builds numerical models of planet formation, echoes that assessment.

But simulations of planet formation suggest that it is unlikely, so chances are that the final planet count for our solar system will be eight.

Previous observations of other young star systems have helped to reshape our understanding of planet formation.

by Xuening Bai and James Stone in the department of astrophysical sciences at Princeton captures the process of planet formation.

Likewise, when astronomers announced that they had found six new planets orbiting distant suns earlier this month, the real value of the discoveries lay in the possibility of understanding the mechanics of planet formation in ways that would have been impossible a mere five years ago.

«ALMA has shown us amazing images and never - before - seen views of the rings and gaps around young stars that could be the hallmarks of planet formation.

Indeed, the present - day theory of planet formation — the build up of a rocky planet's core by the accretion of many small bodies — is very different from Jeans's.

Conventional scientific wisdom holds that they are the leftover scraps of planet formation.

Several years ago Loeb and two colleagues performed a speculative calculation estimating the interstellar abundance of «Oumuamua - sized space rocks based on the density of stars in the Milky Way and the vagaries of planet formation.

Theorists will have to refine their models of planet formation, but will still have to explain how systems like our own ended up with giant planets farther out and small planets in closer orbits.

In research published this week in Astrophysical Journal Letters, Dr Zoe Leinhardt and colleagues from Bristol's School of Physics have completed computer simulations of the early stages of planet formation around the binary stars using a sophisticated model that calculates the effect of gravity and physical collisions on and between one million planetary building blocks.

Diversity of objects and frequency of those in pairs not easily generated by standard models of planet formation.

One school of thought was that planets originally formed dry, due to the high - energy, high - impact process of planet formation, and that the water came later from sources such as comets or «wet» asteroids, which are largely composed of ices and gases.

This disk is the site of planet formation.

In the prevailing theory of planet formation, called core accretion, dust grains stick together to form rocky worlds, and some of these rocky bodies then grow massive enough to attract surrounding gas, becoming gas giants like Jupiter.

That's because one way Kuiper belt objects might have formed in situ, Parker says, is under an emerging model of planet formation in which turbulences and vortexes in the protoplanetary nebula allow many tiny particles to coalesce extremely rapidly into big ones.

These instabilities are a key mechanism for eliciting the transport of angular momentum through nascent planetary systems, and are very important to an overall understanding of planet formation.

My research interests lay in the field of planet formation and in the origin of life.

Hasegawa: It's a theory of planet formation explaining how the planets of our solar system were formed.

I study the early stages of planet formation, where microscopic dust particles coagulate to form planetesimal - size bodies.

So, this image shows the very early stage of planet formation around a baby star.

«Failed - Jupiter planets, like OGLE -2005-BLG-169Lb, are predicted to be more common than Jupiters, especially around stars less massive than the sun, according to the preferred theory of planet formation.

In this regard, HL Tau is very different from what the conventional theory of planet formation suggested.

In the simulation study of planet formation, these gaps were assumed to be formed as a hypothesis.

She has just posted a piece on our Genesis Database, the mother of all planet formation simulations, featuring Gijs Mulders and Fred Ciesla.

«This tells us that meteorites aren't actually representative of the material that formed planets — they're these smaller fractions of material that are the byproduct of planet formation,» Johnson says.

These discoveries from K2 provide a snapshot of planet formation and evolution in cluster environments and thus make excellent laboratories to test differences between field - star and cluster planet populations.

By studying planets across a broad age range, we will gain a better understanding of planet formation and evolution.

With so little in common with the familiar Solar System planets, these newcomers [extrasolar planets] spell the end for established theories of planet formation.11

I will discuss how these findings can be used to constrain models of planet formation and how they may be used to optimize planet searches with future direct imaging missions, such as HabEx and LUVOIR.

Debris disks contain the solid remnants of planet formation that are in collisional cascade, with particles ranging from kilometre - sized planetesimals down to micron - sized dust grains.

Current models of planet formation suggest that these disks should be between -432 degrees Fahrenheit and - 423 degrees Fahrenheit -LRB--258 degrees Celsius to -253 degrees Celsius).

Studies with ALMA and other telescopes have yet to detect any obvious signs of planet formation in it, though higher resolution observations may reveal structures similar to HL Tau, which is of a similar age.

Measuring the eccentricity of individual planets is only practical in favo... ▽ More Doppler planet searches have discovered that giant planets follow orbits with a wide range of orbital eccentricities, revolutionizing theories of planet formation.

Though astronomers have cataloged thousands of planets orbiting other stars, the very earliest stages of planet formation are elusive because nascent planets are born and embedded inside vast, pancake - shaped disks of dust and gas encircling... Read more

We present the discovery of Kepler - 421b, a Uranus - sized exoplanet transiting a G9 / K0 dw... ▽ More In most theories of planet formation, the snow - line represents a boundary between the emergence of the interior rocky planets and the exterior ice giants.

We argue that the correlation between stellar properties and giant planet occurrence is strong supporting evidence of the core accretion model of planet formation.

We analyze a set of VLT / SPHERE data at near - infrared and optical wavel... ▽ More The transition disk around the T Tauri star T Cha possesses a large gap, making it a prime target for high - resolution imaging in the context of planet formation.