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- W3209849152 abstract "We present the discovery of two nearly identically sized sub-Neptune transiting planets orbiting HD 63935, a bright (V = 8.6 mag), Sun-like (Teff = 5560 K) star at 49 pc. TESS identified the first planet, HD 63935 b (TOI-509.01), in Sectors 7 and 34. We identified the second signal (HD 63935 c) in Keck High Resolution Echelle Spectrometer and Lick Automated Planet Finder radial velocity data as part of our follow-up campaign. It was subsequently confirmed with TESS photometry in Sector 34 as TOI-509.02. Our analysis of the photometric and radial velocity data yielded a robust detection of both planets with periods of 9.0600 ± 0.007 and 21.40 ± 0.0019 days, radii of 2.99 ± 0.14 and 2.90 ± 0.13 R⊕, and masses of 10.8 ± 1.8 and 11.1 ± 2.4 M⊕. We calculated densities for planets b and c consistent with a few percent of the planet mass in hydrogen/helium envelopes. We also describe our survey's efforts to choose the best targets for James Webb Space Telescope atmospheric follow-up. These efforts suggest that HD 63935 b has the most clearly visible atmosphere of its class. It is the best target for transmission spectroscopy (ranked by the transmission spectroscopy metric, a proxy for atmospheric observability) in the so far uncharacterized parameter space comprising sub-Neptune-sized (2.6 R⊕ < Rp < 4 R⊕), moderately irradiated (100 F⊕ < Fp < 1000 F⊕) planets around G stars. Planet c is also a viable target for transmission spectroscopy, and given the indistinguishable masses and radii of the two planets, the system serves as a natural laboratory for examining the processes that shape the evolution of sub-Neptune planets." @default.
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- W3209849152 date "2021-10-26" @default.
- W3209849152 modified "2023-10-16" @default.
- W3209849152 title "TESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935" @default.
- W3209849152 cites W147232447 @default.
- W3209849152 cites W1837402863 @default.
- W3209849152 cites W1931992910 @default.
- W3209849152 cites W1967354671 @default.
- W3209849152 cites W1984162005 @default.
- W3209849152 cites W1988249586 @default.
- W3209849152 cites W1990546575 @default.
- W3209849152 cites W1991102845 @default.
- W3209849152 cites W1993271579 @default.
- W3209849152 cites W2011301426 @default.
- W3209849152 cites W2032927073 @default.
- W3209849152 cites W2041389148 @default.
- W3209849152 cites W2060819359 @default.
- W3209849152 cites W2064282313 @default.
- W3209849152 cites W2083250837 @default.
- W3209849152 cites W2094683071 @default.
- W3209849152 cites W2096799072 @default.
- W3209849152 cites W2097407916 @default.
- W3209849152 cites W2111817932 @default.
- W3209849152 cites W2129944627 @default.
- W3209849152 cites W2132117032 @default.
- W3209849152 cites W2135625048 @default.
- W3209849152 cites W2143703996 @default.
- W3209849152 cites W2152687544 @default.
- W3209849152 cites W2159561097 @default.
- W3209849152 cites W2207254951 @default.
- W3209849152 cites W2213039107 @default.
- W3209849152 cites W2217402295 @default.
- W3209849152 cites W2227350766 @default.
- W3209849152 cites W2233380899 @default.
- W3209849152 cites W2342249984 @default.
- W3209849152 cites W2486740864 @default.
- W3209849152 cites W2499105366 @default.
- W3209849152 cites W2572441160 @default.
- W3209849152 cites W2605775362 @default.