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The planet TIC 172900988b has been identified on an exoplanet slightly larger than Jupiter in a binary system. Then a team of astronomers has carried out operations on its mission using NASA’s Space Telescope Transiting Exoplanet Survey Satellite (TESS).
The planet has a mass almost three times the mass of Jupiter. Then the planet orbits its star at a much further distance than expected.
TESS Temukan Planet TIC 172900988b
According to a paper published in one of the AAS journals, the newly discovered circular planet is bigger than Jupiter.
Then a second transit from the parent star. Dr. Veselin Kostov of NASA’s Goddard Space Flight Center and colleagues describe circular planets in transit prior to the discovery of NASA’s Kepler space telescope.
Circular planets are planets that orbit two stars. So finding transiting planets around ancient binary stars is much more difficult. The reason is, the transit is shallower, noisy, and can adapt to stellar eclipses.
This is because there is a constant third light dilution of the binary accompaniment. In addition, it makes transiting planets difficult to find around a single star due to the presence of stellar spots and the activity of both.
Baca Juga: Planet yang Bisa Menyusut, Luar Biasa Aktif Kembali
Astronomers began discussing the unusual observed signature on planet TIC 172900988b when there were multiple transits during a conjunction.
A possible cause for this effect is a planet that transits one or both stars from the eclipsed parent binary multiple times. This occurs during the orbital period.
The configuration of such transits usually depends on the relative celestial projection speed of the circular planets and stars.
Then the orbital period can be estimated via transit. Note that the host system is binary double line spectroscopy.
Astronomers are also trying to detect circular planetary transits from the ground before the turn of the century. Moreover, it is also a singular conjunction which is ultimately hampered by the sampling time.
However, thanks to long waiting times and high photometric precision, the Kepler mission made it possible to find many circular planets in transit. Another event shows that transit pairs during one conjunction are common.
Baca Juga: Planet Neraka TOI-1431b, Miliki Suhu Terpanas dan Ukuran 3 Kali Jupiter
Planetary Observations from One Sector of TESS Data Data
Citing theuncoverreality.in, astronomers have found the planet TIC 172900988b transiting the primary star during sector 21. Then after 5 days the secondary star transited. So, the planet produces two transits.
The prominent motion of the binary orbit is due to the dynamic interaction between the binary and the planet. Then also revealed from extensive archive data from various surveys such as ASAS-SN, Evryscope, KELT, and SuperWASP.
Later they also discovered that the binary star itself eclipsed. In an orbital period of 19.7 days and an eccentricity of 0.45 the planet TIC 172900988b.
Furthermore, the mass of the star is 1.24 and 1.2 M. As for the radii, it is 1.38 and 1.31 R in the primary and secondary stars, respectively.
For a circular planet, the radius is about 11.07 R. However, astronomers were unable to determine its mass and the unique properties of its orbit. The reason is, there are six solutions with almost the same possibilities.
The possible mass of the planet is in the range of 820 to 980 AD. This is for an orbital period of 190 to 205 days and an eccentricity between 0.02 and 0.09.
TIC 172900988b, Planet Masif
This planet larger than Jupiter has a mass equivalent to 2.9 Jupiter masses. Thus making it the most massive travel planet. In addition, the dimensions of the planet TIC 172900988b were almost similar to those of Jupiter during identification.
The planet is too hot to be part of the habitable zone of the system. Then the orbital period is also too long, which is between 189 and 204 days.
Last time, the planet was about 824 light-years from Earth, in the constellation Cancer. Then it became part of a system that lasted 3.1 billion years.
The planet TIC 172900988b has demonstrated the potential for TESS discoveries for circular planets. Then the orbital period far exceeds the duration of the observations. Ultimately the astronomers concluded that the system was accessible via high-resolution spectroscopy, such as the Rossiter-McLaughlin effect from transit spectroscopy. (R10 / HR Online)
Publisher: Jujang
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