Planet Finder Validates Its First Habitable-Zone Exoplanet, a Mini Neptune

Planet Finder Validates Its First Habitable-Zone Exoplanet

FORT DAVIS, Texas — Astronomers have validated their first exoplanet with the Habitable Zone Planet Finder instrument on the Hobby-Eberly Telescope, one of the world’s largest telescopes, located at The University of Texas at Austin’s McDonald Observatory.

About twice the size of Earth and possibly 12 times as massive, the planet could be similar to Neptune, but in miniature. Called G 9-40b, it orbits a small star called a red dwarf about 100 light-years from Earth. It completes a full orbit every six Earth days.

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Distant Giant Planets Form Differently than ‘Failed Stars’

Distant Giant Planets Form Differently than ‘Failed Stars’

AUSTIN — A team of astronomers led by Brendan Bowler of The University of Texas at Austin has probed the formation process of giant exoplanets and brown dwarfs, a class of objects that are more massive than giant planets, but not massive enough to ignite nuclear fusion in their cores to shine like true stars. Using direct imaging with giant ground-based telescopes, they studied the orbits of these faint companions orbiting stars in 27 systems.

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Caroline Morley Receives Annie Jump Cannon Award

Caroline Morley Receives Annie Jump Cannon Award

AUSTIN — The American Astronomical Society (AAS) has awarded Caroline Morley, assistant professor of astronomy at The University of Texas at Austin, its 2020 Annie Jump Cannon Award in Astronomy for outstanding research and promise for future research by a postdoctoral woman researcher within five years of earning her PhD.

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Texas Astronomer Helps NASA Planet Hunter Find its First Earth-Sized, Habitable-Zone World

Finding TESS Mission's First Earth-Sized, Habitable-Zone World

NASA’s Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star’s habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface. A team of scientists, including Andrew Vanderburg of The University of Texas at Austin, confirmed the find, called TOI 700 d, using NASA’s Spitzer Space Telescope and have modeled the planet’s potential environments to help inform future observations.

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Twin Astronomer Probes ‘DNA’ of Twin Stars to Reveal Family History of the Milky Way

Twin Astronomer Probes ‘DNA’ of Twin Stars

AUSTIN, Texas — Twin stars appear to share chemical “DNA” that could help scientists map the history of the Milky Way galaxy, according to new research by astronomer Keith Hawkins of The University of Texas at Austin accepted for publication in The Monthly Notices of the Royal Astronomical Society.

Hawkins knows something about twin similarities and differences, being himself a fraternal twin. His own study of stellar twins “is a kind of a ‘23 and Me’ for stars,” he said with a laugh.

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UT Austin Astronomer Spies Most Distant Dusty Galaxy Hidden in Plain Sight

Astronomer Spies Most Distant Dusty Galaxy Hidden in Plain Sight

AUSTIN — Astronomer Caitlin Casey of The University of Texas at Austin has used the Atacama Large Millimeter/submillimeter Array (ALMA) to spot the light of a massive galaxy seen just 970 million years after the Big Bang. This galaxy, called MAMBO-9, is the most distant dusty star-forming galaxy that has ever been observed without the help of a gravitational lens.

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New Telescope Dedicated at McDonald Observatory

New Telescope Dedicated at McDonald Observatory

FORT DAVIS, Texas — A new telescope was dedicated yesterday at The University of Texas at Austin’s McDonald Observatory. The 1-meter telescope, funded by the Heising-Simons Foundation, is part of the Las Cumbres Observatory (LCO) global network of robotic telescopes.

“We are very pleased to host this new telescope and to conduct additional research by Texas astronomers on the LCO network, and we thank the Heising-Simons Foundation and the Las Cumbres Observatory for making this additional research tool possible,” said Taft Armandroff, Director of McDonald Observatory.

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Giant Magellan Telescope Signs Contract for Telescope Structure

GMT Signs Contract for Telescope Structure

GMTO Corporation, the organization managing the development of the Giant Magellan Telescope (GMT) on behalf of its U.S. and international founders, has signed a contract with MT Mechatronics and Ingersoll Machine Tools to design, build and install the telescope’s precision steel structure.

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Newly Discovered Giant Planet Slingshots Around its Star

Newly Discovered Giant Planet Slingshots Around its Star

FORT DAVIS, Texas — Astronomers at The University of Texas at Austin’s McDonald Observatory, along with colleagues at Caltech and elsewhere, have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. If this planet were somehow placed into our own solar system, it would swing from within our asteroid belt to out beyond Neptune. Other giant planets with highly elliptical orbits have been found around other stars, but none of those worlds were located at the very outer reaches of their star systems like this one.

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A Rare Look at a Rocky Exoplanet's Surface

A Rare Look at a Rocky Exoplanet's Surface

A new study using data from NASA's Spitzer Space Telescope provides a rare glimpse of conditions on the surface of a rocky planet orbiting a star beyond the Sun. The study, published today in the journal Nature, shows that the planet's surface may resemble those of Earth's Moon or Mercury: The planet likely has little to no atmosphere and could be covered in the same cooled volcanic material found in the dark areas of the Moon's surface, called mare.

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