Sentences with phrase «debris disk systems»

Independent of the interpretation for HD 61005, we expect that interstellar gas drag likely plays a role in producing asymmetries observed in other debris disk systems, such as HD 15115 and Delta - Velorum.

«Orbital Stability of High Mass Planets & Implications for Debris Disk Systems» by Sarah Morrison, grad student, LPL

This chart compares the gas mass for several debris disk systems and shows where the photoelectric instability is most important.

Not exact matches

Most likely, Meech says, the object is an outcast from another star system: a space rock flung out during the star's tempestuous youth when it was surrounded by freshly - formed giant planets embedded in a disk of debris.

They are the natural end state of the collapse of a rotating cloud of debris, and as such, they are the closest analogue to the rubble disk we think provided the raw ingredients for our own solar system.

These «debris disks» are constantly fed by collisions among rocky bodies — the larger of which can survive and grow by continued accretion — because the tiny dust grains quickly fall onto the central star or get blown out of the planetary system.

This system shows all three: a polluted white dwarf, a surrounding debris disk, and at least one compact, rocky object.

«All we need to produce narrow rings and other structures in our models of debris disks is a bit of gas, too little for us to detect today in most actual systems,» said co-author Marc Kuchner, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Md..

«Over the past decade, we have learned that remnants of planetary systems around white dwarfs are ubiquitous, and over thirty debris disks have been found by now.

Rieke notes that our solar system contains a faint debris disk of its own — micrometer - size dust particles slowly spiraling in toward the sun.

The relatively low speed — between 6 and 7 meters per second — suggests the process must have taken place over thousands or even hundreds of thousands of years before the asteroid was formed, when a gravitationally stable cloud of debris spun in the disk of material that would go on to build the solar system.

This finding is counterintuitive because higher - mass stars flood their planetary systems with energetic ultraviolet radiation that should destroy the carbon monoxide gas lingering in their debris disks.

«Either it means that the theory is wrong,» says Bignami, or the star «might have a debris disk around it, like a protoplanetary disk or an overgrown system of Saturnian rings, which could create the same effect.»

The astronomers narrowed their search to stars between five and ten million years old — old enough to host full - fledged planetary systems and debris disks — and used ALMA to examine the millimeter - wavelength «glow» from the carbon monoxide in the stars» debris disks.

The discovery that the debris disks around some larger stars retain carbon monoxide longer than their Sun - like counterparts may provide insights into the role this gas plays in the development of planetary systems.

Whatever their origin, the planemos are surrounded by disks of rocky debris, suggesting that they each may be at the center of a whole miniature system of planets circling planets.

His calculations were the first to demonstrate that debris disks around the nearby stars Vega and β Pictoris are newly - formed planetary systems containing planets at least as large as Pluto and Mars.

My research is in celestial mechanics, including the architecture of extra-solar planetary systems, debris disks around stars, the Kuiper belt and asteroid belt, orbital resonances, and meteoritic bombardment on planets in the solar system.

As of December 14, 2009, the 61 Virginis system is known to have one super-Earth and two Neptune - class planets, as well as a circumstellar debris disk.

In particular, I will focus on planets on eccentric orbits, not only because typical exoplanetary systems have been found to contain these, but also because their interactions with debris disks theoretically facilitates the transport of icy bodies within the habitable zone of planetary systems.

(4) Does the «typical» circumstellar disk states of primary star + Kuiper Belt Star show evidence for material from each of the different kinds of small outer solar system bodies (Comets, Centaurs, KBOs) like the active comet debris in HR4796A and the icy KBO debris in Fomalhaut and HD 32297?

Even though the group did not detect any additional exoplanets in the 30 previous unobserved systems, the observations they made provided supplementary data that helped to characterize the abundance of planets in systems with debris disks.

When researchers observed star systems containing debris disks with giant exoplanets in distant orbits, they noted that the star systems had similar dual dust disks analogous to the Solar System's two zones — the asteroid belt (between Mars and Jupiter) and the Kuiper Belt (beyond the orbit of Neptune).

Researchers looked at 130 single - star systems that the Spitzer Space Telescope had determined to have debris disks around them and compared them to 277 stellar systems that appeared not to have debris disks, making this the largest study to observe stars with debris disks.

The paper suggests that when astronomers are looking for these giant exoplanets, they should concentrate on looking at young star systems that have debris disks around them.

Many planets that have been found through direct imaging have been in systems that had debris disks, and now we know the dust could be indicators of undiscovered worlds.»

Abstract: We present $ H$ - band scattered light imaging of a bright debris disk around the A0 star HD 36546 obtained from the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system with data recorded by the HiCIAO camera using the vector vortex coronagraph.

Observations of star systems by an international group of researchers suggest that debris disks around stars may be indicative of giant exoplanets.

This large debris disk is similar to the Kuiper Belt, which encircles the solar system and contains a range of icy bodies from dust grains to objects the size of dwarf planets, such as Pluto.

There has been no shortage of proposed explanations that have been put forth in order to account for the unusual observations, from the more mundane ones which include the presence of cometary fragments and large disk of debris from planetary collisions within the star system, to the more imaginative and fascinating ones which have invoked the presence of an extraterrestrial super-civilisation that is in the process of constructing gigantic megastructures around the star itself.

Disk Detective's goal was to locate protoplanetary disks — very early solar systems — around young stars, and debris disks around more mature ones.

So that means the white dwarf in this system probably came from a star slightly more massive than the A star that has the debris disk, maybe a B type star.

Interferometric observations obtained with the VLTI and the KIN have identified near - and mid-infrared excesses attributed to ho... ▽ More [Abridged] Debris disks are extrasolar analogs to the solar system planetesimal belts.

This is mainly because the interaction of our solar system's planets and debris disk — which is made up of the asteroid belt between Mars and Jupiter, and the Kuiper belt way past Neptune — have heavily influenced the current structure of our solar system.