Researchers from the University of Arizona have found a youthful exoplanet that may shed light on this phenomenon and offer insights into how planets form. Illustrations of the Milky Way exhibit a spiraling design of 'arms' loaded with stars that radiate from the center. Comparable formations are s
The Large Binocular Telescope in Arizona. The LBTI instrument combines infrared light from both 8.4m mirrors to image planets and disks around young and nearby stars. Credit: D. Steele, Large Binocular Telescope Observatory
The UArizona researchers were finally able to detect MWC 758c by using the Large Binocular Telescope Interferometer, or LBTI, a UArizona-built instrument connecting the telescope’s two 8.4-meter primary mirrors that can observe at longer wavelengths in the mid-infrared range, unlike most other instruments used for observing exoplanets at shorter, or bluer, wavelengths.
“If there is a lot of dust surrounding this planet, the dust will absorb shorter wavelengths, or bluer light, making the planet appear bright only at longer, redder wavelengths,” said co-author Kaitlin Kratter, a UArizona theoretical astrophysicist. “In the other scenario of a colder planet surrounded by less dust, the planet is fainter and emits more of its light at longer wavelengths.”
“In either case, we now know that we need to start looking for redder protoplanets in these systems that have spiral arms,” Wagner said.
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