منابع مشابه
Transit Shapes and Self Organising Maps as a Tool for Ranking Planetary Candidates: Application to Kepler and K2
A crucial step in planet hunting surveys is to select the best candidates for follow up observations, given limited telescope resources. This is often performed by human ‘eyeballing’, a time consuming and statistically awkward process. Here we present a new, fast machine learning technique to separate true planet signals from astrophysical false positives. We use Self Organising Maps (SOMs) to ...
متن کاملSpectral types of planetary host star candidates from OGLE III
Context. The Optical Gravitational Lensing Experiment project has recently provided the OGLE III list of low-luminosity object transits from campaigns #3 and #4, reporting 40 new objects exhibiting the low-amplitude photometric eclipses expected for exoplanets. Compared to previous OGLE targets, these OGLE III candidates have been more restrictively selected and may contain low-mass planets. Ai...
متن کاملCandidates, Groups, and the Campaign Finance Environment
More than 300 presidential candidates have alerted the Federal Election Commission (FEC) that they plan to seek the nation's highest office in 2016. Few would be widely regarded as major candidates, and some undeclared candidates have nonetheless received substantial media attention. According to one recent media report, "[f]ifteen White House contenders are being boosted by big-money groups ru...
متن کاملK2: A System for Campaign Deployments of Wireless Sensor Networks
Environmental scientists frequently engage in “campaignstyle” deployments, where they visit a location for a relatively short period of time (several weeks to months) and intensively collect measurements with a combination of manual and automatic methods. We present K2, a mote-based system which brings high-quality automated monitoring to deployments of this nature. We identify key application ...
متن کاملAbout putative Neptune-like extrasolar planetary candidates
Context. We re-analyze the precision radial velocity (RV) data of HD 208487, HD 190360, HD 188015 and HD 114729. These stars are supposed to host Jovian companions in long-period orbits. Aims. We test a hypothesis that the residuals of the 1-planet model of the RV or an irregular scatter of the measurements about the synthetic RV curve may be explained by the existence of additional planets in ...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2018
ISSN: 1538-3881
DOI: 10.3847/1538-3881/aac6e6