Sentences with phrase «planet candidates observed»

We present here 275 planet candidates observed during Campaigns 0 - 10 of the K2 mission that are orbiting stars brighter than 13 mag (i... ▽ More Since 2014, NASA's K2 mission has observed large portions of the ecliptic plane in search of transiting planets and has detected hundreds of planet candidates.

We present here 275 planet candidates observed during Campaigns 0 - 10 of the K2 mission that are orbiting stars brighter than 13 mag (in Kepler band) and for which we have obtained high - resolution spectra (R = 44,000).

Not exact matches

In a few other cases a candidate planet had been observed near a star but had not been proved to follow a planet - like orbit.

Since first observing a planet orbiting a star other than our sun in 1992, astronomers have made definitive sightings of about 1000 «exoplanets» and have identified a further 3000 to 4000 candidate exoplanets.

However, Kepler observed hundreds of stars that have multiple planet candidates.

On March 25, 2015, a team of astronomers using the Hubble Space Telescope revealed observations which indicate via the transit method that Alpha Centauri B may have a second planet «c» in a hot inner orbit, just outside planet candidate «b.» After observing Alpha Centauri B in 2013 and 2014 for a total of 40 hours, the team failed to detect any transits involving planet b (previously detected using the radial velocity variations method and recently determined not to be observed edge - on in a transit orbit around Star B).

We then compare the number of observed planet candidates to the number of stars around which such planets could have been detected in order to estimate the planet occurrence rate around cool stars.

Comparing single - planet candidate KOIs to multi-planet candidate KOIs, we find an observed false positive fraction due to contamination of 16 % and 2.4 % respectively, bolstering the existing evidence that multi-planet KOIs are significantly less likely to be false positives.

Since a planet's radius and equilibrium temperature depends on the parameters of its host star, our study provides more precise planetary parameters for planets and candidates orbiting late - type stars observed with K2.

Abstract: Since 2014, NASA's K2 mission has observed large portions of the ecliptic plane in search of transiting planets and has detected hundreds of planet candidates.

Since the Kepler mission began in 2009, a total of 4,034 candidates and 2,335 confirmed planets have been spotted in the small slice of the sky the telescope observes, which is centered on the Cygnus constellation.

By observing slight dips in the light from distant stars — which correspond to planets «transiting» between their host stars and the telescope's lens — Kepler has discovered 135 confirmed planets and 3,548 planet candidates.

The distribution of observed period ratios sh... ▽ More About one - third of the ~ 1200 transiting planet candidates detected in the first four months of \ ik data are members of multiple candidate systems.

Before we can use James Webb to really observe candidate exoplanets and study their atmospheres, we first need to confirm the planets are real — that what we think are planets are not false positives caused, for instance, by stellar activity.