Sentences with phrase «small planet detections»
The current lack of small planet detections is likely to correspond to underabundances of these objects, as noted previously (Southworth et al. 2007; Mazeh et al. 2005) and probably corresponds to a lower limit to the existence of gaseous planets because of evaporation.
https://www.aanda.org/ Not exact matches
Imaging detections are challenging because of the combined effect of small angular separation and large luminosity contrast between a planet and its host star.
Nobody has ever conclusively seen a moon orbiting a planet in another stellar system, partly because their small size and great distance makes them difficult to find with modern detection methods.
«The planets are so small, the signals are so weak, it takes a huge amount of resources to make a detection at all,» Seager says.
«With this result we are also closing in on the detection of the atmospheres of small planets with ground - based telescopes,» says co-author Mercedes Lopez - Morales of the Harvard - Smithsonian Center for Astrophysics (CfA).
Short - periodic Neptune - like planets are close or below this limit, and consequently transform into smaller and denser planets, whose transit detection still eludes us in most cases, CoRoT - 7b being the first possible member of the remaining population of nuclei of gas - planets that have undergone significant evaporation.
Also, the distribution of planet detections, currently affected by small number statistics, should become better established.
The short orbital periods of the newfound planets enabled their detection from the small data set — each planet passed its star several times in the 43 - day observation window, dimming the starlight by a small fraction with each orbit.
«Results from the three main techniques of planet detection (radial velocity, transit and microlensing techniques) are rapidly converging to a common result: Not only are planets common in the galaxy, but there are more small planets than large ones,» said Stephen Kane, of NASA's Exoplanet Science Institute at the California Institute of Technology, Pasadena, Calif. «This is encouraging news for investigations into habitable planets.»
«With this result we are also closing in on the detection of the atmospheres of small planets with ground - based telescopes,» Mercedes Lopez - Morales of the Harvard - Smithsonian Center for Astrophysics and the study's co-author, said in the statement.
We identified 156 planet candidates, including one object that was not pre... ▽ More We present an improved estimate of the occurrence rate of small planets orbiting small stars by searching the full four - year Kepler data set for transiting planets using our own planet detection pipeline and conducting transit injection and recovery simulations to empirically measure the search completeness of our pipeline.
Abstract: We present an improved estimate of the occurrence rate of small planets orbiting small stars by searching the full four - year Kepler data set for transiting planets using our own planet detection pipeline and conducting transit injection and recovery simulations to empirically measure the search completeness of our pipeline.
The smallest exoplanet hitherto discovered has... ▽ More Since the discovery of the first extrasolar giant planets around Sun - like stars, evolving observational capabilities have brought us closer to the detection of true Earth analogues.
Third, NSF supports the technology development that will enable the detection of planets as small as the Earth.
Finally, we investigate tentative correlations between host - star masses and planet candidate radii, orbital periods, and multiplicity, but caution that these results may be influenced by the small sample size and detection biases.
«There's a tantalizing incentive: it's possible that some potentially habitable planets like Earth, which are relatively small and orbit around relatively dim stars, might be hiding just below the traditional detection threshold — there might be hidden gems still undiscovered in the Kepler data!»
Research in the field of extrasolar planets is advancing rapidly as new technologies enable the detection of smaller and more distant planets as well as the characterization of previously detected planets.
Since our telescopes and detection programs have only begun being sensitive enough to find a small planet in the habitable zone, it is possible the ones in this sample are not truly representative of the whole planet population, but are just the easiest ones to find.