An international group of astronomers announced the discovery of a new exoplanet. It is a so-called hot Jupiter, located at a distance of 1,070 light years from Earth.
The find was made using the TESS telescope. It tracks the brilliance of 200,000 of the brightest stars near the Sun to look for fluctuations caused by transits of exoplanets orbiting around them. The telescope has already discovered more than 7,500 candidate exoplanets, of which 620 have been confirmed to date.
Recently, another extra-solar world has been added to this list. Researchers were able to detect changes in the light curve of a star of spectral class F, the mass of which is 1.59 times the mass of the Sun, and the age is estimated at 1.6 billion years.
The analysis shows that the light fluctuations are caused by transits of an object whose diameter is 1.07 times that of Jupiter and whose mass is estimated to be no more than 6.4 Jupiter masses. It has been designated TOI-2005 b. The exoplanet makes one orbit around the star every 17.3 days.
The peculiarity of the discovery is that TOI-2005 b moves in a very elongated orbit, the eccentricity of which is 0.6. This leads to very sharp temperature fluctuations of 1000 °C during a spin around the star. At the pericenter, the TOI-2005 b equilibrium temperature reaches 1830 °C.
The study also shows that the amount of light received by TOI-2005 b light, changes by more than an order of magnitude in less than 10 days. Therefore, unlike most hot Jupiters, TOI-2005 b is not believed to be in a tidal trap, and it experiences a regular change of day and night.
According to astronomers, TOI-2005 b is in a state of tidal migration and is gradually rounding its orbit. If the exoplanet manages to complete this process within the lifetime of the system, it will enter a stable circular orbit passing at a distance of 0.101 a.u. from its parent star.
We previously reported on how the Extremely Large Telescope would be able to detect life on Proxima Centauri in just 10 hours.
According to Phys.org
