100 light-years away, the planet TOI-1452 b … Advanced Webb Telescope Needs Additional Observations
Scientists have reported that an exoplanet slightly larger than Earth with an ocean has been discovered in the constellation Dragon, regarding 100 light-years from Earth.
Named ‘TOI-1452 b’, this planet orbits in the so-called ‘Goldilocks region’, which is neither too hot nor too cold for liquid water to exist. ) is considered to be
According to the University of Montreal, Canada, an international research team led by Prof. René Doyon of the University’s Exoplanet Research Institute (iREx) is tracking the planet TOI-1452 b, which was discovered by NASA’s special exoplanet search telescope ‘TESS’. The observations were published in The Astronomical Journal.
The research team followed up observations of the exoplanet found by Tess by capturing the starlight decrease in an 11-day cycle with PESTO, a specialized exoplanet transit camera installed at the Mont Megantic Observatory (OMM) telescope near Quebec. proceeded to reveal the details.
The exoplanet orbiting star TOI-1452, a star much smaller than the Sun, and other stars of similar size were found to orbit each other in a binary system.
Although the two stars are regarding 97 AU apart, twice the distance between the Sun and Pluto, they were observed as a single light in Tess observations.
However, in high-resolution images using Pesto, it was confirmed that the planet is orbiting TOI-1452, one of the two stars, along with the fact that it is a binary system.
The research team said that the TOI-1452 b planet is likely to be made of rock like Earth, but it presents a different appearance from the Earth in terms of radius, mass, and density.
Although 70% of the Earth’s surface is covered by oceans, water accounts for less than 1% of its total mass.
TOI-1452 b, which is regarding 70% larger than Earth’s, is made up of up to 30% water by weight, which is similar to the proportion of the entire planet covered with water, such as Jupiter’s moons Ganymede and Callisto, and Saturn’s moons Titan and Enceladus. analyzed to have
“TOI-1452 b is one of the most suitable candidates for oceanic planets among planets discovered so far,” said Dr Charles Cardew, first author of the paper. It presents a much lower density.”
The research team said that TOI-1452 b is a perfect candidate for the James Webb Space Telescope (JWST), which started full-scale scientific observation as a next-generation telescope.
It is one of the few planets with a moderate temperature that shows the characteristics of a sea planet, and it is close enough to the Earth to observe the planet’s atmosphere, and it is located in a place where it can be observed all year round.
Professor Doyon, who participated in the development of Webb’s ‘Near-Infrared Imager and Muslit Spectrometer (NIRISS)’, said, “Observation using the Webb telescope is essential to broaden our understanding of TOI-1452 b. “He said.
/yunhap news
