Journal
SCIENCE
Volume 339, Issue 6126, Pages 1398-1401Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1232003
Keywords
-
Categories
Funding
- U.S. Department of Energy by LLNL [DE-AC52-07NA27344]
- NASA
- Keck Principal Investigator Data Analysis Fund
- NASA High-End Computing Program through the NASA Advanced Supercomputing Division at Ames Research Center
- David Dunlap family
- University of Toronto
- W. M. Keck Foundation
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1211562] Funding Source: National Science Foundation
Ask authors/readers for more resources
Determining the atmospheric structure and chemical composition of an exoplanet remains a formidable goal. Fortunately, advancements in the study of exoplanets and their atmospheres have come in the form of direct imaging-spatially resolving the planet from its parent star-which enables high-resolution spectroscopy of self-luminous planets in jovian-like orbits. Here, we present a spectrum with numerous, well-resolved molecular lines from both water and carbon monoxide from a massive planet orbiting less than 40 astronomical units from the star HR 8799. These data reveal the planet's chemical composition, atmospheric structure, and surface gravity, confirming that it is indeed a young planet. The spectral lines suggest an atmospheric carbon-to-oxygen ratio that is greater than that of the host star, providing hints about the planet's formation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available