From Harvard-Smithsonian Center for Astrophysics: “High Schoolers Discover Four Exoplanets Through Harvard & Smithsonian Mentorship Program”
From Harvard-Smithsonian Center for Astrophysics
An artist’s rendering of a five-planet system around TOI-1233 includes a super-Earth (foreground) that could help solve mysteries of planet formation. The four innermost planets were discovered by high schoolers Kartik Pinglé and Jasmine Wright alongside researcher Tansu Daylan. The fifth outermost planet pictured was recently discovered by a separate team of astronomers. Credit: NASA/JPL-Caltech.
This week, 16-year-old Kartik Pinglé and 18-year-old Jasmine Wright have co-authored a peer-reviewed paper in The Astronomical Journal describing the discovery of four new exoplanets about 200-light-years away from Earth.
The high schoolers participated in the research through the Student Research Mentoring Program (SRMP) at the Center for Astrophysics | Harvard & Smithsonian. Directed by astrochemist Clara Sousa-Silva, the SRMP connects local high schoolers who are interested in research with real-world scientists at Harvard and MIT. The students then work with their mentors on a year-long research project.
“It’s a steep learning curve,” says Sousa-Silva, but it’s worth it. “By the end of the program, the students can say they’ve done active, state-of-the-art research in astrophysics.”
Pinglé and Wright’s particular achievement is rare. High schoolers seldom publish research, Sousa-Silva says. “Although that is one of the goals of the SRMP, it is highly unusual for high-schoolers to be co-authors on journal papers.”
With guidance from mentor Tansu Daylan, a postdoc at the MIT Kavli Institute for Astrophysics and Space Research, the students studied and analyzed data from the Transiting Exoplanet Survey Satellite (TESS). TESS is a space-based satellite that orbits around Earth and surveys nearby bright stars with the ultimate goal of discovering new planets.
NASA/MIT Tess in the building.
NASA/MIT TESS replaced Kepler in search for exoplanets.
TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center.
Additional partners include Northrop Grumman, based in Falls Church, Virginia; NASA’s Ames Research Center in California’s Silicon Valley; the Center for Astrophysics – Harvard and Smithsonian in Cambridge; MIT Lincoln Laboratory; and the Space Telescope Science Institute in Baltimore.
The team focused on TESS Object of Interest (TOI) 1233, a nearby, bright Sun-like star. To perceive if planets were rotating around the star, they narrowed in on TOI-1233’s light.
“We were looking to see changes in light over time,” Pinglé explains. “The idea being that if the planet transits the star, or passes in front of it, it would [periodically] cover up the star and decrease its brightness.”
Planet transit. NASA/Ames.
To the team’s surprise, they discovered not one but four planets rotating around TOI-1233.
“I was very excited and very shocked,” Wright says. “We knew this was the goal of Daylan’s research, but to actually find a multiplanetary system, and be part of the discovering team, was really cool.”
Three of the planets are considered “sub-Neptunes,” gaseous planets that are smaller than, but similar to our own solar system’s Neptune. It takes between 6 and 19.5 days for each of them to orbit around TOI-1233. The fourth planet is labeled a “super-Earth” for its large size and rockiness; it orbits around the star in just under four days.
Daylan hopes to study the planets even closer in the coming year.
“Our species has long been contemplating planets beyond our solar system and with multi-planetary systems, you’re kind of hitting the jackpot,” he says. “The planets originated from the same disk of matter around the same star, but they ended up being different planets with different atmospheres and different climates due to their different orbits. So, we would like to understand the fundamental processes of planet formation and evolution using this planetary system.”
Daylan adds that it was a “win-win” to work with Pinglé and Wright on the study.
“As a researcher, I really enjoy interacting with young brains that are open to experimentation and learning and have minimal bias,” he says. “I also think it is very beneficial to high school students, since they get exposure to cutting-edge research and this prepares them quickly for a research career.”
The SRMP was established in 2016 by Or Graur, a former postdoctoral fellow at the Center for Astrophysics | Harvard & Smithsonian. The program accepts about a dozen students per year with priority given to underrepresented minorities.
Thanks to a partnership with the City of Cambridge, the students are paid four hours per week for the research they complete.
“They are salaried scientists,” Sousa-Silva says. “We want to encourage them that pursuing an academic career is enjoyable and rewarding—no matter what they end up pursuing in life.”
Pinglé, a junior in high school, is considering studying applied mathematics or astrophysics after graduation. Wright has just been accepted into a five-year Master of Astrophysics program at the University of Edinburgh in Scotland.
See the full article here .
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The Center for Astrophysics combines the resources and research facilities of the Harvard College Observatory and the Smithsonian Astrophysical Observatory under a single director to pursue studies of those basic physical processes that determine the nature and evolution of the universe. The Smithsonian Astrophysical Observatory (SAO) is a bureau of the Smithsonian Institution, founded in 1890. The Harvard College Observatory (HCO), founded in 1839, is a research institution of the Faculty of Arts and Sciences, Harvard University, and provides facilities and substantial other support for teaching activities of the Department of Astronomy.
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