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- W3186014446 abstract "Using the Keck Planet Imager and Characterizer (KPIC), we obtained high-resolution (R$sim$35,000) $K$-band spectra of the four planets orbiting HR 8799. We clearly detected water{} and CO in the atmospheres of HR 8799 c, d, and e, and tentatively detected a combination of CO and water{} in b. These are the most challenging directly imaged exoplanets that have been observed at high spectral resolution to date when considering both their angular separations and flux ratios. We developed a forward modeling framework that allows us to jointly fit the spectra of the planets and the diffracted starlight simultaneously in a likelihood-based approach and obtained posterior probabilities on their effective temperatures, surface gravities, radial velocities, and spins. We measured $vsin(i)$ values of $10.1^{+2.8}_{-2.7}$~km/s for HR 8799 d and $15.0^{+2.3}_{-2.6}$~km/s for HR 8799 e, and placed an upper limit of $< 14$~km/s of HR 8799 c. Under two different assumptions of their obliquities, we found tentative evidence that rotation velocity is anti-correlated with companion mass, which could indicate that magnetic braking with a circumplanetary disk at early times is less efficient at spinning down lower mass planets." @default.
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- W3186014446 date "2021-09-17" @default.
- W3186014446 modified "2023-10-16" @default.
- W3186014446 title "Detection and Bulk Properties of the HR 8799 Planets with High-resolution Spectroscopy" @default.
- W3186014446 cites W1579923135 @default.
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- W3186014446 cites W1994337830 @default.
- W3186014446 cites W1995944755 @default.
- W3186014446 cites W2003054456 @default.
- W3186014446 cites W2008204335 @default.
- W3186014446 cites W2024628329 @default.
- W3186014446 cites W2025382674 @default.
- W3186014446 cites W2030514362 @default.
- W3186014446 cites W2031854222 @default.
- W3186014446 cites W2038838577 @default.
- W3186014446 cites W2039591498 @default.
- W3186014446 cites W2041941070 @default.
- W3186014446 cites W2045895264 @default.
- W3186014446 cites W2047592331 @default.
- W3186014446 cites W2049822747 @default.
- W3186014446 cites W2053609443 @default.
- W3186014446 cites W2060819359 @default.
- W3186014446 cites W2067216542 @default.
- W3186014446 cites W2067819575 @default.
- W3186014446 cites W2076328442 @default.
- W3186014446 cites W2106723742 @default.
- W3186014446 cites W2108915436 @default.
- W3186014446 cites W2117683788 @default.
- W3186014446 cites W2133636837 @default.
- W3186014446 cites W2140611633 @default.
- W3186014446 cites W2150347673 @default.
- W3186014446 cites W2157805129 @default.
- W3186014446 cites W2170742148 @default.
- W3186014446 cites W2288778377 @default.
- W3186014446 cites W2292396867 @default.
- W3186014446 cites W2340897870 @default.
- W3186014446 cites W2413988422 @default.
- W3186014446 cites W2512176460 @default.
- W3186014446 cites W2531263803 @default.
- W3186014446 cites W2564234753 @default.
- W3186014446 cites W2592855997 @default.
- W3186014446 cites W2751422570 @default.
- W3186014446 cites W2765571104 @default.