We have now become used to the breakthrough of raw exoplanets , but there are still many unknowns that are yet to be understood .
An international squad of astronomer set out to answer one of these unknowns : What are the more golden characteristics that superstar need to have for the organisation of giant major planet ? In doing so , they have find four new exoplanets orbiting four unlike stars more monumental than the Sun .
The squad reckon the radial velocity of 166 whiz , and expose four new major planet around four of them : HIP95124b , HIP8541b , HIP74890b , and HIP84056b . The results were published in apaperaccepted for publication in the journal Astronomy & Astrophysics .
HIP95124b has the short orbital geological period of the four planets ( about 560 days ) and has 2.9 Jupiter masses . It orbits a virtuoso that is almost double as massive as the Sun and with five multiplication its r .
HIP8541b , on the other hand , is the one with the furthest sphere ( about 1,560 years ) and is the heavy with a mass of 5.5 Jupiters . Its mavin is only slightly heavier than the Sun but almost eight times encompassing .
HIP74890b and HIP84056b are unmistakably similar , orbiting stars about 1.7 time the mass of the Sun in about 820 days . Even their mass is pretty similar , 2.4 and 2.6 times the pot of Jupiter , respectively .
The scientists also find an interesting drift . They noticed that giant major planet tend to be found more often around stars that are rich in elements like oxygen , carbon , and iron . As jumbo planet are not needs made by heavier element , this might indicate the need for arocky corefor accelerator pedal giants to take form .
And they also get word that average mass star , slightly vainglorious than the Sun , are more likely to host giant satellite .
" We show that the fraction of giant planets addition with the prima bulk in the range between 1 to 2.1 solar quite a little , despite the fact that satellite are more easy detected around less massive stars , " the team wrote in the paper .
Although the study was impart on a relatively small sampling of stars , the finding might have a profound encroachment on our sympathy of the Solar System . After all , our Sun has four giant planets .
