Sentences with phrase «close planetary companion»

Not exact matches

Through N - body calculations, I will show that if hot Jupiters migrated by Lidov - Kozai oscillations driven by external planetary perturbers, close - in super-Earth companions would have been perturbed onto their host stars.

On June 24, 2009, astronomers submitted a paper summarizing observations which reveals that Star A reverses its magnetic poles every two years (some 11 times faster than our Sun, Sol), possibly because of the close orbit of its Jupiter - class planetary companion (Fares et al, 2009; and Unknown, New Scientist, July 13, 2009).

The dilution of the host star's light by the nearly equal magnitude stellar companion (~ 0.5 magnitudes fainter) significantly affects the derived planetary parameters, and if left uncorrected, leads to an underestimate of the radius and mass of the planet by 10 %... ▽ More We present the discovery of a hot Jupiter transiting an F star in a close visual (0.3» sky projected angular separation) binary system.

However, if the existence of a relatively close, second companion (see Star Bc below) around Bab — with an orbital period of 2.2 to 2.9 years or less — is confirmed, then a planetary orbit in Star Ba's water zone may not be stable over the long run.

The finding of a 3.3 - day stellar rotation period for Star A that is estimated to be very similar to that of its recently discovered planetary companion moving in a very close «torch» orbit suggests that the planetary object may have tidally locked the star (Brogi et al, 2012; and Butler et al, 1997).