Sentences with phrase «debris disks around»

As part of an effort to identify distant planets hospitable to life, NASA has established a crowdsourcing project in which volunteers search telescopic images for evidence of debris disks around...

Our Herschel Open Time Key Programme DUNES aims at detecting and characterizing debris disks around nearby, sun - like stars.

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

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

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.

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.

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.

The MIPS instrument team has documented the incidence, properties, and evolution of planetary debris disks around nearby stars.

Comparisons of the Kuiper belt with the debris disks around other stars provide important indications about both the Kuiper belt itself and the planetary environment around other stars.

In the inner region of the dust disk where Earth formed, the temperature should not have been hot enough to vaporize carbon dust, according to recent observations of circumstellar debris disks around newborn stars.

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.

In the past 2 decades, astronomers have detected infrared radiation from debris disks around several stars.

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.

«We knew about these debris disks around white dwarfs for over twenty years, but have only now been able to obtain the first image of one of these disks,» says Mr Manser.

«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.»

Team leader Mauri Valtonen of the University of Turku in Finland used equations derived from Einstein's theory of general relativity to show that the pulses could be caused by a small, orbiting black hole plunging into the debris disk around the larger one, situated at one end of the orbital ellipse.

In 2009, astronomers confirmed the existence of Beta Pictoris b, a planet with an estimated mass of about nine times Jupiter's, in the debris disk around Beta Pictoris.

Though long hypothesized, the first evidence for a debris disk around any star was uncovered in 1983 with NASA's Infrared Astronomical Satellite.

Later photographs revealed an edge - on debris disk around the southern star Beta Pictoris.

Arcs, rings and spirals appear in the debris disk around the star HD 141569A.

LEFT: Debris Disk around star HR 8799.

They had to wait until the early 1980s for the first observational evidence for a debris disk around any star to be uncovered.

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.

On May 18, 2010, a team of astronomers submitted a preprint revealing the presence of a cold, «eccentric» dust ring or debris disk around Zeta2 Reticuli.

The survey also led to spatially resolved images of the thin debris disk around HD \, 61005 that have been published earlier.

the first debris disk around a star with a companion white dwarf!

The outer disk is revealed in reprocessed archival Hubble Space Telescope NICMOS F110W images, as well as new coronagraphic H band images from the Very Large Telescope SPHERE instr... ▽ More We present the first scattered - light images of the debris disk around 49 ceti, a ~ 40 Myr A1 main sequence star at 59 pc, famous for hosting two massive dust belts as well as large quantities of atomic and molecular gas.

Not exact matches

About 4.6 billion years ago planets like our Earth formed out of the ever - growing clumps of debris that were in the accretion disk around it.

Whether around a young star or a supermassive black hole, the many mutually interacting objects in a self - gravitating debris disk are complicated to describe mathematically.

Watch the changing dust density and the growth of structure in this simulated debris disk, which extends about 100 times farther from its star than Earth's orbit around the sun.

«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.

Hubble also spied a dark gap dividing an even larger disk of debris around a star called HD 141569, the first such clearing seen within a disk.

The debris gathered into an accretion disk around the black hole.

According to researchers, the debris from this collision formed a very wide disk around Mars, made up of a dense inner part composed of matter in fusion, and a very thin outer part primarily of gas.

Scientists want to study the behaviors of exocomets, which represent the link between fully formed planets and the debris disks, but individual comets around alien suns are too dark and small to be observed directly.

Around younger stars, however, many of these newly formed objects have yet to settle into stately orbits and routinely collide, producing enough rubble to spawn a «second - generation» disk of debris.

Debris disks are found around stars that have shed their dusty, gas - filled protoplanetary disks and gone on to form planets, asteroids, comets, and other planetesimals.

If certain debris disks are able to hold onto appreciable amounts of gas, it might push back astronomers» expected deadline for giant planet formation around young stars, the astronomers speculate.

They found that the disk of debris around the black hole smothers all but the highest energy radiation and thus renders the black holes undetectable by optical telescopes.

Massive numbers of comets may even produce the bright debris disks seen around other stars.

And third, it kicked up martian debris, which formed a disk around the planet that then created the moons.

Ongoing radio observations (SMA, JCMT, VLA) of Sirius A are being used to set an observationally determined standard for stellar atmosphere modeling and debris disk studies around A stars, as well as to take the first step toward characterizing potential intrinsic uncertainty in stellar emission at these wavelengths.

An edge - on debris disk was photographed around the southern star Beta Pictoris.

These circumstellar disks are common around newborn stars, and provide the raw materials for planets, which are formed as a result of accretion of dust and debris left over from the star's birth.

EOS talk: «Extreme - AO Imaging of Disks around Intermediate - Mass Stars: Discovery of a Two - Armed Spiral Disk and a Warped Edge - on Debris Disk» by Kevin Wagner, grad student, Steward Observatory

The most favorable stars for disk detection are those with spectral types between A and K, while the statistics for debris disks detected around low - mass M - type stars is very low, either because they are rare or because they are more difficult to detect.

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.

Infrared interferometric observations of Denebola's debris disk were used by Akeson et al (2009) to model two possible bands of dust beginning around 0.13 AU (and extending for 0.3 AUs) and around 13 AUs (extending for 6.2 AUs).

This excess emission has been suggested to stem from debris di... ▽ More (abridged) Infrared excesses associated with debris disk host stars detected so far peak at wavelengths around ~ 100 -LCB- \ mu -RCB- m or shorter.

The observed 100 um fluxes from delta Pav, HR 8501, and 51 Peg agree with the predicted photospheric fluxes, excluding debris disks brighter than Ldust / Lstar ~ 5 x 10 ^ -7 (1 sigma level) around those stars.