Researchers, Dr., join the team to discover water in the atmosphere. Planets outside the solar system
Researchers from the National Astronomical Research Institute (Public Organization) (Prof. Dr.) Ministry of Higher Education, Science, Research and Innovation (EGO) together with an international team of astronomers. Water was discovered on the exoplanet KELT-11b through observations and data collection by the Hubble Space Telescope. Spitzer Space Telescope Tess Space Telescope And other telescopes around the world, including a 0.5-meter telescope at the National Observatory. On Doi Inthanon, Chiang Mai Province, the research was published in The Astronomical Journal, Issue 160, No. 6, on 23 November 2020.
Scenario exoplanet KELT-11b (Photo: Walter Robinson, Lehigh University)
The study of the atmosphere of exoplanets is done by observing the phenomenon. “Transitions of planets” or Transit when exoplanets pass in front of the star. The light of the star is blocked by the planet’s surface. Causing astronomers to notice a decrease in the brightness of the star But for planets with an atmosphere During the passage of time Some of the star’s light is absorbed by elements and molecules in the planet’s atmosphere. Makes while observing the transits of planets at different wavelengths Astronomers will see uneven dips in light for each wavelength. It depends on the chemical composition of the planet’s atmosphere.
Dr.Supachai Aviphan
Prof. Supachai Aviphan, Ph.D. Researcher at Exoplanets and Biophysics Research Group One of the co-authors said the work studied the atmosphere of the exoplanet KELT-11b, a planet with a mass of 0.171 times Jupiter. It is 1.35 times larger than Jupiter’s radius, orbiting the star KELT-11 with an orbital period of only 4.74 days from its small but large mass, making KELT-11b one of the densest planets ever discovered. Found Due to its low density, astronomers have predicted that the planet KELT-11b will have a thicker atmosphere. Suitable for studying the atmosphere of the planets
A team of astronomers, led by Knicole Colon from the NASA Goddard Space Flight Center, along with an international team of astronomers and researcher Dr, observed the KELT-11b teleportation with the Hubble Space Telescope. Spitzer Space Telescope And the Tess space telescope And studied the changes in star’s light during global telescope observations. Including a 0.5-meter telescope at the Royal Observatory in Honor of the 7th Anniversary or the National Observatory Located on Doi Inthanon, Chom Thong District, Chiang Mai Province in April 2018, the study found that the planet KELT-11b has water as an element in the atmosphere. With molecules of HCN, TiO and AlO
0.5m telescope
Dr. Supachai said that the current study of the atmosphere of the planets outside the solar system is one of the main studies. In the past, there are many exoplanet atmospheres and biophysics research group, including the study of the atmosphere of the exoplanet GJ3470b, which has a blue sky like Earth. Development of an appropriate exoplanet rating equation for the study of the atmosphere And the use of machine learning techniques to develop simulations of the atmosphere of exoplanets
In addition, Dr. Sor has continued to develop a network of telescopes for astronomy research since 2019, a 0.5-meter telescope at the Royal Observatory of 7th Anniversary used in this research. It has been replaced with a 1.0 m telescope, which will increase the potential for astronomers to observe. To continue researching internationally in the future
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