Sentences with phrase «of planetary transit»

Solutions for stellar parallax and proper motions await more observations, but the analysis of the astrometric residuals from a local solution in the vicinity of a star have already proved to be an important tool in the process of confirming the hypothesis of a planetary transit.

This observational result, which uses the achromatic property of planetary transit signals that is not investigated by the Kepler observations, provides an independent indication that Kepler's false positive rate is low.

In 1996, two teams of astronomers announced the possible detection of a planetary transit eclipse of the close binary pair CM Draconis Aab, which has yet to be confirmed (further details below).

In 1996, two teams of astronomers announced the possible detection of a planetary transit eclipse of the close binary pair CM Draconis Aab (Guinan et al, 1998; Martin and Deeg, 1996; and Guinan et al, 1996).

Three years later Charbonneau found himself locked in a race with Deming to be the first to detect the flip side of a planetary transit — the moment, called secondary eclipse, when a planet passes behind its star.

Related sites OGLE home page, with details of planetary transit Compendium of all extrasolar planets to date Kepler, a future NASA satellite devoted to transit searches

Bean tracked GJ 1214 b through two of those planetary transits using one of the 8.2 - meter telescopes at the Very Large Telescope atop Cerro Paranal in Chile, parsing the observed light into its individual wavelengths.

It spends much of its time monitoring the light from around 60 of the nearest ultracool dwarf stars and brown dwarfs («stars» which are not quite massive enough to initiate sustained nuclear fusion in their cores), looking for evidence of planetary transits.

Charbonneau, D., Brown, T. M., Latham, D. W. & Mayor, M. Detection of planetary transits across a Sun - like star.

He is one of the discovers of the first ring around an asteroid (Chariklo) and with collaborators was the one to first use measurements of planetary transits from space to measure the size of the sun.

Not exact matches

In particular, they are looking at the planet as it transits, seeking a telltale broadening of its planetary shadow due to starlight being absorbed by a hydrogen - rich atmosphere.

Like Kepler and the European CoRoT satellite before it, TESS will search for planetary transits: brief dimmings of starlight, occurring at regular intervals, that betray the shadowing presence of an unseen exoplanet.

Both Kepler and TESS are designed to scan the sky for planetary transits, the slight dimming that occurs when a planet moves across the face of a star and temporarily blocks some of its glow.

And next decade, spacecraft such as NASA's Wide Field Infrared Survey Telescope and ESA's Planetary Transits and Oscillations will join the hunt, alongside a new generation of enormous ground - based telescopes with mirrors 30 meters across or more.

What the search for planetary transits has in common with the observation of starquakes is the need to stare at the same stars for a long time — long enough to detect very slow vibrations or to detect at least three transits of a planet.

This was borne out by his first voyage in 1768 on the Endeavour with James Cook, who was to observe the transit of Venus across the face of the Sun from the southern hemisphere to help to calculate planetary distances, while Banks collected biological specimens, the first from the South Pacific to be seen in England.

They plan to test - drive the telescope's instruments on two transiting Jupiter - size worlds, WASP - 39 b and WASP - 43 b, gleaning as much data as possible from the shifting patterns of starlight and planetary shadow.

The Vespa technique works by comparing the details of a transiting planet signal — specifically its duration, depth and shape — against simulated planetary and false positive signals to indicate the type of signal the candidate most likely is.

The PLAnetary Transits and Oscillations of stars (PLATO) mission is designed to fill that gap.

It was looking for planetary «transits,» in which fortuitously aligned worlds cross the face of their host stars and block a fraction of the starlight seen from Earth.

To confirm that the transits of COROT 9 b recorded in 2008 by the COROT satellite were indeed planetary, the researchers first took two follow - up readings of the star using a spectrograph in France, a rough sketch that was consistent with the presence of a planet.

The few known super-Earths whose orbits are fortuitously aligned so that they transit — pass in front of their host star — from Earth's vantage point provide a unique laboratory for planetary investigations.

To pick out those signals associated with actual planets, physics graduate student Roberto Sanchis - Ojeda searched through the set of periodic light curves, looking for frequent smaller dips in the data midway between the planetary transits.

Having so many worlds in one system — and so many planets that spill their secrets via transits — may provide an exceptional test bed for theories of planetary formation and evolution.

A planetary system has to be almost perfectly planar for multiple planets to transit — Lissauer compared the astonishing flatness of the Kepler 11 system to a scaled - up vinyl LP.

Several Detection Teams» studied CoRoT light - curves for planetary transits, also finding by coincidence a large number of EBs.

If an exoplanet passes in front of a star (called a planetary transit), it blocks a portion of the light and causes the brightness to dip.

One method that has been discussed for years but has yet to bear fruit is known as transit timing — if a planet passes in front of its host star so that it blocks out a small but detectable fraction of the star's light, researchers can time the arrival of that partial eclipse, known as a planetary transit.

Coming hot off the heels of discoveries made by other observatories, including NASA's Kepler and CoRot (the Convection, Rotation, and Planetary Transits mission, led by France's CNES with contributions from the ESA), this spacecraft is intended to build significantly on our knowledge of the universe, the Solar System, and the formation of life in general.

The European Space Agency's (ESA) Science Programme Committee announced on Wednesday, February 19, that it has selected the PLAnetary Transits and Oscillations of Stars (PLATO) mission for a prospective 2024 launch utilizing a Soyuz - Fregat launch vehicle.

From the European Space Agency (ESA): «The PLAnetary Transits and Oscillations of stars (PLATO) mission will identify and study thousands of exoplanetary systems, with an emphasis on discovering and characterising Earth - sized planets and super-Earths.

Still, many of the nearby planets are detectable via three exoplanet hunting methods: planetary transits, high - contrast imaging, and stellar radial velocity measurements.

All of the potentially Earth - like worlds were spotted using the transit method, which measures dips in a star's light output as a planetary body crosses in front from our line of sight.

The expected Doppler signals are too small to confirm them by demonstrating that their masses are in the planetary regi... ▽ More We present an investigation of twelve candidate transiting planets from Kepler with orbital periods ranging from 34 to 207 days, selected from initial indications that they are small and potentially in the habitable zone (HZ) of their parent stars.

We compare the transit duration distribution for different subsets of Kepler planet candidates and discuss tentative trends with planetary radius and multiplicity.

Combined with an estimate of the stellar den... ▽ More We present the discovery of the Kepler - 20 planetary system, which we initially identified through the detection of five distinct periodic transit signals in the Kepler light curve of the host star 2MASSJ19104752 +4220194.

The first, shows the difference between the actual length of day and 86,400 SI seconds (24 hours) over the past two and a half thousand years estimated from records of various astronomical events (eclipses, planetary transits, occultations etc).

For most of the candidates (85 %), the transit depths measured with Kepler are consistent with the depths measured with Spitzer as expected for planetary objects, while we find that the most discrepant measurements are due to the presence of unresolved stars that dilute the photometry.

The initial transit signal was identified in KELT - North survey data, and the planetary nature of the occulter was established using a combination of follow - up photometry, high - resolution imaging, high - resolution spectroscopy, and precise radial velocity measurements.

We confirmed the planetary nature of the transiting companion using this mass limit and Doppler tomographic observations to verify that the companion transits HD 332124.

For Kepler - 20c and Kepler - 20d, the blend scenario is independently disfavored by the achromaticity of the transit: From Spitzer data gathered at 4.5 um, we infer a ratio of the planetary to stellar radii of 0.075 + -0.015 (Kepler - 20c) and 0.065 + -0.011 (Kepler - 20d), consistent with each of the depths measured in the Kepler optical bandpass.

This directly affects the determination of the oc... ▽ More The Kepler mission has to date found almost 6,000 planetary transit - like signals, utilizing three years of data for over 170,000 stars at extremely high photometric precision.

Abstract: We present the discovery of the Kepler - 20 planetary system, which we initially identified through the detection of five distinct periodic transit signals in the Kepler light curve of the host star 2MASSJ19104752 +4220194.

We identified the initial transit signal in the KELT - North survey data and established the planetary nature of the companion through precise follow - up photometry, high - resolution spectroscopy, precise radial velocity measurements, and high - resolution adaptive optics imaging.

We confirmed the planetary nature of the transiting companion using this mass limit and Doppler tom... ▽ More We present the discovery of KELT - 21b, a hot Jupiter transiting the $ V = 10.5 $ A8V star HD 332124.

We combine the estimate of Teff and [Fe / H] with an estimate o... ▽ More We present the discovery of the Kepler - 19 planetary system, which we first identified from a 9.3 - day periodic transit signal in the Kepler photometry.

Abstract: We present the discovery of the Kepler - 19 planetary system, which we first identified from a 9.3 - day periodic transit signal in the Kepler photometry.

Major sources of astrophysical false positives are planetary transits and stellar eclipses on background... ▽ More The Kepler Mission was launched on March 6, 2009 to perform a photometric survey of more than 100,000 dwarf stars to search for Earth - size planets with the transit technique.

We apply a statistical method to show that the likelihood of the planetary interpretation of the transit signals is more than three orders of magnitude larger than that of the alternative hypothesis that the signals result from an eclipsing binary star.

This catalog is the first to utilize artificial transit injection to evaluate the performance of our vetting procedures and quantify potential biases, which are essential for accurate computation of planetary occurrence rates.