Their goal was to determine whether the newly formed planet had experienced some chaotic dynamical interactions in its past. Soon after, researchers began observing the planet using the Planet Finder Spectrograph on the Magellan Clay Telescope at Carnegie’s Las Campanas Observatory in Chile. A parallel discovery paper was published the same year by scientists the National Institute for Astrophysics in Italy. “We can see the planet, but we thought it was still too young for the orbit of other distant stars to manipulate its path.”ĭS Tuc Ab was discovered in 2019 by Dartmouth’s Elisabeth Newton and her team using data from NASA’s TESS Mission. “DS Tuc Ab is at an interesting age," because the rotating disk of gas and dust from which it formed around its host star has dissipated, explained Ben Montet of the University of New South Wales, who was the lead author of a companion paper on which the Carnegie group were also co-authors that was published in The Astronomical Journal and used a different technique to study the planet. “The vast majority of planets we find are already mature and we don’t know what they were like when they were young.”ĭS Tuc Ab is a hot Neptune, which orbits one star in a two-star system on a short, eight-day period in a relatively flat plane. “A lot of things can happen between when a planet is formed and when we see them,” said lead author George Zhou of the CfA. Their work will be published in The Astrophysical Journal Letters and represents the first time the orbital tilt of a planet younger than 45 million years-or about 1/100 th the age of the Solar System-has been measured. To study a very young planet called DS Tuc Ab, a Harvard & Smithsonian Center for Astrophysics-led team that included six Carnegie astronomers-Johanna Teske, Sharon Wang, Stephen Shectman, Paul Butler, Jeff Crane, and Ian Thompson-developed a new observational modeling tool. Pasadena, CA- A new kind of astronomical observation helped reveal the possible evolutionary history of a baby Neptune-like exoplanet.
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