2021MNRAS.504.4634G


Query : 2021MNRAS.504.4634G

2021MNRAS.504.4634G - Mon. Not. R. Astron. Soc., 504, 4634-4648 (2021/July-1)

Caught in the act: core-powered mass-loss predictions for observing atmospheric escape.

GUPTA A. and SCHLICHTING H.E.

Abstract (from CDS):

Past studies have demonstrated that atmospheric escape by the core-powered mass-loss mechanism can explain a multitude of observations associated with the radius valley that separates the super-Earth and sub-Neptune planet populations. Complementing such studies, in this work, we present a shortlist of planets that could be losing their atmospheres today if their evolution is indeed primarily dictated by core-powered mass-loss. We use Bayesian inference analysis on our planet evolution and mass-loss model to estimate the posteriors of the parameters that encapsulate the current state of a given planet, given their published masses, radii, and host star properties. Our models predict that the following planets could be losing their atmospheres today at a rate >=107 g s–1 at 50 per cent confidence level: pi Men c, Kepler-60 d, Kepler-60 b, HD 86226 c, EPIC 249893012 b, Kepler-107 c, HD 219134 b, Kepler-80 e, Kepler-138 d, and GJ 9827 d. As a by-product of our Bayesian inference analysis, we were also able to identify planets that most-likely harbour either secondary atmospheres abundant with high mean-molecular weight species, low-density interiors abundant with ices, or both. The planets belonging to this second category are WASP-47 e, Kepler-78 b, Kepler-10 b, CoRoT-7 b, HD 80653 b, 55 Cnc e, and Kepler-36 b. While the aforementioned lists are by no means exhaustive, we believe that candidates presented here can serve as useful input for target selection for future surveys and for testing the importance of core-powered mass-loss in individual planetary systems.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): planets and satellites: atmospheres - planets and satellites: composition - planets and satellites: formation - planets and satellites: physical evolution - planet-star interactions

Simbad objects: 38

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Number of rows : 38
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 15082b Pl 02 26 51.0582746497 +37 33 01.737746137           ~ 244 1
2 * pi. Men PM* 05 37 09.8851202601 -80 28 08.831347245   6.25 5.67     G0V 276 1
3 * pi. Men c Pl 05 37 09.8851202601 -80 28 08.831347245           ~ 57 0
4 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 372 1
5 NAME LP 424-4b Pl 07 59 05.8395618539 +15 23 29.240025256           ~ 211 1
6 K2-100b Pl 08 38 24.3004849747 +20 06 21.828303951           ~ 34 0
7 * rho01 Cnc e Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 465 1
8 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 1024 1
9 HD 80653b Pl 09 21 21.4159695584 +14 22 04.546018827           ~ 4 0
10 HD 86226c Pl? 09 56 29.8441755158 -24 05 57.795793912           ~ 6 0
11 NAME L 320-124b Pl 10 14 51.7783473599 -47 09 24.189733387           ~ 113 0
12 HD 97658b Pl 11 14 33.1613362847 +25 42 37.391912066           ~ 158 1
13 K2-18b Pl 11 30 14.5176249117 +07 35 18.257210626           ~ 82 0
14 Ross 905b Pl 11 42 11.0933874353 +26 42 23.658083337           ~ 674 1
15 K2-235b Pl 12 33 32.8440958980 -10 08 46.223886777           ~ 83 0
16 K2-314 * 15 12 59.5618444224 -16 43 28.199087676   12.355 11.577     ~ 5 0
17 K2-314b Pl 15 12 59.5618444224 -16 43 28.199087676           ~ 3 0
18 NAME G 139-21b Pl 17 15 18.9337265994 +04 57 50.064695682           ~ 596 1
19 Kepler-10b Pl 19 02 43.0613892904 +50 14 28.701617339           ~ 264 1
20 Kepler-60d Pl 19 15 50.6983559226 +42 15 54.050526895           ~ 34 1
21 Kepler-60 Ro* 19 15 50.6983559226 +42 15 54.050526895           ~ 82 1
22 Kepler-60b Pl 19 15 50.6983559226 +42 15 54.050526895           ~ 34 1
23 BD+41 3306e Pl 19 19 00.5488384064 +41 38 04.581624991           ~ 29 0
24 Kepler-138 Ro* 19 21 31.5681629849 +43 17 34.680374646           M1V 93 0
25 Kepler-138d Pl 19 21 31.5681629849 +43 17 34.680374646           ~ 48 0
26 Kepler-36b Pl 19 25 00.0430855076 +49 13 54.631289830           ~ 130 1
27 Kepler-36 Ro* 19 25 00.0430855076 +49 13 54.631289830   12.66 11.94     ~ 187 1
28 Kepler-78b Pl 19 34 58.0139307295 +44 26 53.957326851           ~ 119 1
29 Kepler-80e Pl 19 44 27.0200771587 +39 58 43.593797770           ~ 30 1
30 Kepler-80 Ro* 19 44 27.0200771587 +39 58 43.593797770           M0V 102 1
31 Kepler-107c Pl 19 48 06.7735876636 +48 12 30.961884624           ~ 33 0
32 Kepler-99b Pl 19 49 24.9579519624 +41 18 00.212812886           ~ 40 0
33 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1202 1
34 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1609 1
35 WASP-47e Pl 22 04 48.7262032385 -12 01 08.000987005           ~ 49 0
36 HD 219134b Pl 23 13 16.9747821012 +57 10 06.076520993           ~ 75 0
37 BD-02 5958d Pl 23 27 04.8376505956 -01 17 10.585614768           ~ 25 0
38 BD-02 5958b Pl 23 27 04.8376505956 -01 17 10.585614768           ~ 31 0

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2021.11.30-00:24:25

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