Welcome back, guys! Space and Research are always together. So today we bring you yet one more interesting thing researchers have recently revealed.
Until now, We’ve found about 4,000 exoplanets in our Milky Way Galaxy. And now we’ve found yet one more. Before jumping into a mere conclusion what’s so great in it just dive in here and see what makes this article its way here.
Exoplanet as the name suggests means a planet outside the solar system. All the exoplanets found until now were located within the relatively flat disc of the galactic plane, the thin disc. But now, after over one and a half years of scanning, NASA’s TESS (Transiting Exoplanet Survey Satellite) has found a new and therefore the first exoplanet orbiting a star and swooping as far as about 5870 light-years above the galactic plane.
This planet is about 1.088 times the earth and also within the dimensions of Earth, it packs about 8.7 times the mass of Earth making it denser.
This planet orbits a star called LHS 1815 and thus it’s named LHS 1815b by an international team of researchers within the paper The Astronomical Journal. That paper is currently available on pre-print server arXiv..
Once we speak about spiral galaxies like the Milky Way Galaxy, we’d probably think they comprise a flat plane with the stars and gas arranged in spiral arms that orbit the galactic center, in which sits a supermassive black hole.
Technically, it’d be correct to mention these galaxies lie within a spherical halo, most of that space is comparatively empty, with most mass concentrated in a flat disc. We credit the flat shape to some complex physics ideas.
These thick discs are older (about 10 billion years), poor in metals and are rich in alpha-process elements, moving faster than the thin disc stars. They have orbits that pass through the disc and into the thick disc, both above and below the galactic plane.
It was thought that these thick disc stars may hinder the planetary formation process in a way compared to thin disc stars. And, since no thick disc planets had been found, any differences there could also be in the formation and evolution between thin and thick disc stars has remained a mystery.
Having found one such planet, we now have some more parameters and data for locating more such. With LHS 1815 in our neighborhood, it has given us an extremely great opportunity. We will take a more in-depth look at the system to determine if we may spot any other planets in orbit around it.
“The TESS survey can provide a large sample of solar neighborhood transiting planets across the entire sky. All planet host stars are bright enough to have their RV [radial velocity – the planet-identifying wiggle] measured by the Gaia survey,” the researchers wrote in their paper.
“It will be an excellent opportunity to review the difference in the planet evolution between the thin and thick discs.”