Observations from the Chandra X-ray Observatory failed to find any X-rays coming from WASP - 18 .
Chandra X-ray Observatory is thought that this is caused by WASP - 18b disrupting the star 's magnetic field by causing a reduction in convection in the star 's atmosphere .
Observations from the Chandra X-ray Observatory failed to find any X-rays coming from WASP - 18 , and it is thought that this is caused by WASP - 18b disrupting the star 's magnetic field by causing a reduction in convection in the star 's atmosphere .