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• W4220802014 abstract "In 2017, the California-Kepler Survey (CKS) published its first data release (DR1) of high-resolution optical spectra of 1305 planet hosts. Refined CKS planet radii revealed that small planets are bifurcated into two distinct populations: super-Earths (smaller than 1.5 $R_E$) and sub-Neptunes (between 2.0 and 4.0 $R_E$), with few planets in between (the Radius Gap.) Several theoretical models of the Radius Gap predict variation with stellar mass, but testing these predictions are challenging with CKS DR1 due to its limited $M_star$ range of 0.8-1.4 $M_odot$. Here, we present CKS DR2 with 411 additional spectra and derived properties focusing on stars of 0.5-0.8 $M_odot$. We found the Radius Gap follows $R_p propto P^m$ with $m = -0.10 pm 0.03$, consistent with predictions of XUV- and core-powered mass-loss mechanisms. We found no evidence that $m$ varies with $M_star$. We observed a correlation between the average sub-Neptune size and $M_star$. Over 0.5 to 1.4 $M_odot$, the average sub-Neptune grows from 2.1 to 2.6 $R_E$, following $R_p propto M_star^alpha$ with $alpha = 0.25 pm 0.03$. In contrast, there is no detectable change for super-Earths. These $M_star$-$R_p$ trends suggests that protoplanetary disks can efficiently produce cores up to a threshold mass of $M_c$, which grows linearly with stellar mass according to $M_c approx 10 M_E~(M_star / M_odot)$. There is no significant correlation between sub-Neptune size and stellar metallicity (over $-$0.5 to $+$0.5 dex) suggesting a weak relationship between planet envelope opacity and stellar metallicity. Finally, there is no significant variation in sub-Neptune size with stellar age (over 1 to 10 Gyr), which suggests that the majority of envelope contraction concludes after $sim$1 Gyr." @default.
• W4220802014 created "2022-04-03" @default.
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• W4220802014 date "2022-03-18" @default.
• W4220802014 modified "2023-10-10" @default.
• W4220802014 title "The California-Kepler Survey. X. The Radius Gap as a Function of Stellar Mass, Metallicity, and Age" @default.
• W4220802014 cites W1982625484 @default.
• W4220802014 cites W1993271579 @default.
• W4220802014 cites W2006124034 @default.
• W4220802014 cites W2011301426 @default.
• W4220802014 cites W2027926028 @default.
• W4220802014 cites W2032927073 @default.
• W4220802014 cites W2044560189 @default.
• W4220802014 cites W2051879158 @default.
• W4220802014 cites W2061759127 @default.
• W4220802014 cites W2089014417 @default.
• W4220802014 cites W2101687185 @default.
• W4220802014 cites W2135625048 @default.
• W4220802014 cites W2146292423 @default.
• W4220802014 cites W2152687544 @default.
• W4220802014 cites W2287912467 @default.
• W4220802014 cites W2304135995 @default.
• W4220802014 cites W2326850392 @default.
• W4220802014 cites W2344233738 @default.
• W4220802014 cites W2432021507 @default.
• W4220802014 cites W2568270534 @default.
• W4220802014 cites W2570029089 @default.
• W4220802014 cites W2604239613 @default.
• W4220802014 cites W2606686133 @default.
• W4220802014 cites W2608435525 @default.
• W4220802014 cites W2743656798 @default.
• W4220802014 cites W2765226415 @default.
• W4220802014 cites W2784067869 @default.
• W4220802014 cites W2793344699 @default.
• W4220802014 cites W2795333988 @default.
• W4220802014 cites W2798336535 @default.
• W4220802014 cites W2798341770 @default.
• W4220802014 cites W2884273598 @default.
• W4220802014 cites W2900224735 @default.
• W4220802014 cites W2919249415 @default.
• W4220802014 cites W2943428116 @default.
• W4220802014 cites W2953485706 @default.
• W4220802014 cites W2979344590 @default.
• W4220802014 cites W2981544636 @default.
• W4220802014 cites W3028685339 @default.
• W4220802014 cites W3096408422 @default.
• W4220802014 cites W3097976388 @default.
• W4220802014 cites W3098334161 @default.
• W4220802014 cites W3099034633 @default.
• W4220802014 cites W3099279536 @default.
• W4220802014 cites W3099331576 @default.
• W4220802014 cites W3099353780 @default.
• W4220802014 cites W3099823360 @default.
• W4220802014 cites W3100399825 @default.
• W4220802014 cites W3100481918 @default.
• W4220802014 cites W3100835200 @default.
• W4220802014 cites W3100845463 @default.
• W4220802014 cites W3100933337 @default.
• W4220802014 cites W3101043214 @default.
• W4220802014 cites W3101832613 @default.
• W4220802014 cites W3102014803 @default.
• W4220802014 cites W3102083771 @default.
• W4220802014 cites W3102212773 @default.
• W4220802014 cites W3102275088 @default.
• W4220802014 cites W3102366612 @default.
• W4220802014 cites W3102746679 @default.
• W4220802014 cites W3102762255 @default.
• W4220802014 cites W3103086735 @default.
• W4220802014 cites W3103276181 @default.
• W4220802014 cites W3103716000 @default.
• W4220802014 cites W3103791428 @default.
• W4220802014 cites W3103997796 @default.
• W4220802014 cites W3103999057 @default.
• W4220802014 cites W3104013056 @default.
• W4220802014 cites W3104747033 @default.
• W4220802014 cites W3104957872 @default.
• W4220802014 cites W3105302095 @default.
• W4220802014 cites W3106281067 @default.
• W4220802014 cites W3106333873 @default.
• W4220802014 cites W3106354621 @default.
• W4220802014 cites W3106402285 @default.
• W4220802014 cites W3119771673 @default.
• W4220802014 cites W3123081611 @default.
• W4220802014 cites W3125287281 @default.
• W4220802014 cites W3130510829 @default.
• W4220802014 cites W3136460886 @default.

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