Sentences with phrase «host stars detected»

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.

Not exact matches

Kepler wouldn't detect an entire solar system identical to ours, but the telescope could find individual planets passing in front of their host star.

These tug strongly on their host stars, making them easiest to detect.

To see how much dust was swirling around their chosen 30 stars, the HOSTS Survey detected the dust disks using a technique called «Bracewell nulling interferometry,» after Ronald Bracewell, the astronomer who first suggested the method.

Astronomers detect planets too far away for direct observation by the dimming in light when a world passes in front of, or transits, its host star.

Previous sky surveys with ground - based telescopes have mainly detected giant planets, while NASA's Kepler observatory has uncovered the existence of many smaller exoplanets, but their host stars are faint and difficult to study.

Now, graduate students at the University of Washington have found a way to detect volcanic activity in the atmospheres of exoplanets, or those outside our solar system, when they transit, or pass in front of their host stars.

The Kepler spacecraft detects planets such as Kepler 19 b by watching them dim the light of their host star as the planets pass in front, or «transit.»

The team observed the star for a month and a half and detected a regular fluctuation in the star's velocity, revealing the presence of a planet almost as massive as Jupiter, orbiting its host star at a distance only one twentieth of that between the Earth and the Sun.

«Only microlensing can detect these cold ice giants that, like Uranus and Neptune, are far away from their host stars.

Most were detected by the wobbles they induce in their host stars or by the starlight they block as they pass in front of their stars as seen from Earth.

Astronomers have discovered that stars containing low amounts of the element lithium tend to host solar systems, a result that could dramatically reduce the time it will take to detect another Earth - like planet.

In today's issue of Nature, a team led by Garik Israelian of the Instituto de Astrofisica de Canarias in Spain's Canary Islands surveyed 46 stars in our galactic neighborhood that host planets, along with 116 stars where so far no planets have been detected.

A star about 100 light years away in the Pisces constellation, GJ 9827, hosts what may be one of the most massive and dense super-Earth planets detected to date, according to new research led by Carnegie's Johanna Teske.

It is unfortunate, then, that some of the easiest planets to detect are the so - called hot Jupiters: massive bodies hugging tight to their host stars and therefore subject to extremely high (and probably life - negating) temperatures.

Detecting a habitable planet is an enormous challenge due to the brightness of the planetary system's host star, which tends to overwhelm the relatively dim planets.

Researchers have discovered an Earth - sized exoplanet named Kepler 78b that whips around its host star in a mere 8.5 hours — one of the shortest orbital periods ever detected.

Researchers at MIT have discovered an Earth - sized exoplanet named Kepler 78b that whips around its host star in a mere 8.5 hours — one of the shortest orbital periods ever detected.

Together, these data allowed the team to rule out sources close enough to the star's line - of - sight to confound the Kepler evidence, and conclude that Kepler's detected signal has to be from a small planet transiting its host star.

With such a small host star, the team employed a technique that eliminated the possibility that either a background star or a stellar companion could be mimicking what Kepler detected.

Along with Alycia Weinberger and Ian Thompson, Alan Boss has been running the Carnegie Astrometric Planet Search (CAPS) program, which searches for extrasolar planets by the astrometric method, where the planet's presence is detected indirectly through the wobble of the host star around the center of mass of the system.

As part of a large survey of possible planet - hosting stars, Lovis and his colleagues used the powerful HARPS (for High Accuracy Radial - Velocity Planet Searcher) spectrograph at La Silla Observatory in Chile, 2,400 meters above sea level, which can detect stellar motions with precisions of less than one meter per second, roughly the walking speed of a human being.

The telescope detected a periodic dimming in the light emitted by the planet's host star, K2 - 33, that hinted at the existence of an orbiting planet.

Due to the close binary orbital interactions of the host star with Alpha Centauri A and Star B's own increased stellar activity during recent years, the astronomers were only able to detect the radial - velocity variations of host star B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than four and a half years of careful observatstar with Alpha Centauri A and Star B's own increased stellar activity during recent years, the astronomers were only able to detect the radial - velocity variations of host star B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than four and a half years of careful observatStar B's own increased stellar activity during recent years, the astronomers were only able to detect the radial - velocity variations of host star B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than four and a half years of careful observatstar B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than four and a half years of careful observation.

In addition, all three stars (including Proxima) were among the «Tier 1» target stars for NASA's optical Space Interferometry Mission (SIM) to detect a planet as small as three Earth - masses within two AUs of its host star (and so some summary system information and images on Stars A, B, and C are available from the SIM Teams), but the SIM project manager announced on November 8, 2010 that the mission was indefinitely postponed due to withdrawal of NASA funstars (including Proxima) were among the «Tier 1» target stars for NASA's optical Space Interferometry Mission (SIM) to detect a planet as small as three Earth - masses within two AUs of its host star (and so some summary system information and images on Stars A, B, and C are available from the SIM Teams), but the SIM project manager announced on November 8, 2010 that the mission was indefinitely postponed due to withdrawal of NASA funstars for NASA's optical Space Interferometry Mission (SIM) to detect a planet as small as three Earth - masses within two AUs of its host star (and so some summary system information and images on Stars A, B, and C are available from the SIM Teams), but the SIM project manager announced on November 8, 2010 that the mission was indefinitely postponed due to withdrawal of NASA funStars A, B, and C are available from the SIM Teams), but the SIM project manager announced on November 8, 2010 that the mission was indefinitely postponed due to withdrawal of NASA funding.

Previously, some stars hosting planets have been found to have low - mass stars and white dwarf stellar remnants, which can be detected in visual wavelengths.

Several Earth - like planets and super-Earths have been detected in the habitable zones of their host stars and more than 2300 planetary candidates have been announced.

«The Keck and Hubble telescopes allow us to detect these faint planetary host stars and determine their properties.»

Planets are so faint and tiny compared to their host stars that it is remarkable we can detect them at all, let alone study their atmospheres.

«When a planet transits, or passes in orbit, in front of its host star, we can use information from this event to detect water vapor and other atmospheric compounds.

Water Emissions - In September of 2002, a team of astronomers (including Cristiano Cosmovici of the Institute for Cosmic and Planetary Science) announced at the Second European Workshop on Exo / Astrobiology that they had detected water «maser» emissions from three of 17 star systems suspected of hosting planets, including Upsilon Andromedae, using the 32 - meter Medicina radio telescope near Bologna.

The first method detects planets by the subtle gravitational tug they give to their host stars.

Also, the method can detect exoplanets as small as Mercury and exoplanets orbiting as far from their host star as Saturn orbits the sun.

Proxima has been selected to be one of the Tier 1 target stars for NASA's Space Interferometry Mission (SIM)-- which is planned for launch as early as 2011 — to detect a planet as small as three Earth - masses within two AUs of its host star.

Due to the close binary orbital interactions of the host star with Alpha Centauri A and Star B's own increased stellar activity during recent years, the astronomers were only able to detect the radial - velocity variations of host star B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than three years of careful observatstar with Alpha Centauri A and Star B's own increased stellar activity during recent years, the astronomers were only able to detect the radial - velocity variations of host star B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than three years of careful observatStar B's own increased stellar activity during recent years, the astronomers were only able to detect the radial - velocity variations of host star B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than three years of careful observatstar B that were caused by the 3.236 - day orbit of the planet (with a semi-major axis of 0.04 AU) only after more than three years of careful observation.

There are 49 planet candidates around these stars, including 42 detected through transits and 7 revealed by precise Doppler measurements of the host stars.

Terrestrial planets, on the other h... ▽ More Debris disks are usually detected through the infrared excess over the photospheric level of their host star.

Kipping's exomoon detection involves discovering its gravitational pull on the orbital velocity of a planet host — which in turn, are often detected based on their gravitational pull around a star.

Astronomers from Wesleyan University have detected the shock waves produced by a high - speed «hot Jupiter» exoplanet caught in a tight orbit around its host star.

As relatively small planets at close distances to their host stars, astronomers would have great difficulty in detecting such planets around either star using present methods.

It was also selected as a «Tier 1» target star for NASA's optical Space Interferometry Mission (SIM) to detect a planet as small as three Earth - masses within two AUs of its host star (and so some summary system information and images of Epsilon Indi may still be available from the SIM Teams), but the SIM project manager announced on November 8, 2010 that the mission was indefinitely postponed due to withdrawal of NASA funding.

K2 - 27b is a warm Neptune orbiting its host star in 6.77 days and has a... ▽ More We report on Doppler observations of three transiting planet candidates that were detected during Campaign 1 of the K2 mission.

We call this the transit method of detecting exoplanets — the exoplanet transits its host star.

Abstract: Israelian et al. (2004) reported that exoplanet host stars are lithium depleted compared to solar - type stars without detected massive planets, a result recently confirmed by Gonzalez (2008).

As such a close distance to its host star, astronomers would have great difficulty in detecting such a small planet using present methods.

It was also selected as a «Tier 1» target star for NASA's optical Space Interferometry Mission (SIM) to detect a planet as small as three Earth - masses within two AUs of its host star (and so some summary system information and images of Eta Cassiopeiae A and B may still be available from the SIM Teams), but the SIM project manager announced on November 8, 2010 that the mission was indefinitely postponed due to withdrawal of NASA funding.

Although GRB 000131, like other gamma - ray bursts, appears to have taken place in a remote «early galaxy» (or «sub-galactic clumps» of stars) that is smaller than today's luminous galaxies, astronomers found it difficult to detect that extremely dim, sub-galactic clump of stars even with the Hubble Space Telescope, as the observed fading of the afterglow indicated that the maximum brightness of the gamma - ray emission was explosion was at least 10,000 times brighter than its host galaxy.

On Wednesday, February 2, 2011, NASA's Kepler Mission revealed that, thus far, it has detected 1,235 planetary candidates orbiting 907 host stars, from a survey of some 155,453 stars in constellations Cygnus and Lyra using the transit method which requires a rare orbital alignment across the face of the host star as seen from the Solar System.

The exoplanet HAT - P - 11b is too close to its host star to actually see visible light flashes, but an infrared telescope may be able to detect hydrogen cyanide from its electrical discharge.

In addition to 10 unconfirmed, weaker «signals,» the team was able to detect eight super-Earths around red dwarfs between 15 and 80 light - years away from our Sun, Sol, of which three orbit within the habitable zones of their host stars.