2019ApJ...875...99K


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.22CET21:50:21

2019ApJ...875...99K - Astrophys. J., 875, 99-99 (2019/April-3)

Atmospheres and UV environments of Earth-like planets throughout post-main-sequence evolution.

KOZAKIS T. and KALTENEGGER L.

Abstract (from CDS):

During the post-main-sequence (post-MS) phase of stellar evolution, the orbital distance of the habitable zone (HZ), which allows for liquid surface water on terrestrial planets, moves out past the system's original frost line, providing an opportunity for outer planetary system surface habitability. We use a 1D coupled climate/photochemistry code to study the impact of the stellar environment on the planetary atmospheres of Earth-like planets/moons throughout its time in the post-MS HZ. We also explore the ground UV environments of such planets/moons and compare them to Earth's. We model the evolution of star-planet systems with host stars ranging from 1.0 to 3.5 M throughout the post-MS, calculating stellar mass loss and its effects on planetary orbital evolution and atmospheric erosion. The maximum amount of time a rocky planet can spend continuously in the evolving post-MS HZ ranges between 56 and 257 Myr for our grid stars. Thus, during the post-MS evolution of their host star, subsurface life on cold planets and moons could become remotely detectable once the initially frozen surface melts. Frozen planets or moons, like Europa in our solar system, experience a relatively stable environment on the horizontal branch of their host star's evolution for millions of years.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrobiology - planetary systems - planets and satellites: atmospheres - planets and satellites: terrestrial planets - stars: evolution - stars: horizontal-branch

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * bet Cet PM* 00 43 35.37090 -17 59 11.7827 3.90 3.02 2.01 1.29 0.78 G9.5IIICH-1 502 0
2 * alf Ari PM* 02 07 10.40570 +23 27 44.7032 4.29 3.17 2.01 1.15 0.54 K2-IIIbCa-1 608 1
3 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1191 1
4 * tet Dor * 05 13 45.4562676177 -67 11 06.935083880 7.48 6.097 4.801     K2+III 59 0
5 * bet Col PM* 05 50 57.5921991 -35 46 05.915211 5.49 4.28 3.12 2.27 1.69 K1III_CN+1 135 0
6 * nu.02 CMa PM* 06 36 41.0375756 -19 15 21.165905 5.96 5.011 3.91 3.13 2.61 K1.5III-IVFe1 244 1
7 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1058 1
8 * d Vel * 08 44 23.9453925159 -42 38 57.393304135   4.917 4.046     G6III 72 0
9 * gam Cru PM* 12 31 09.95961 -57 06 47.5684 5.01 3.23 1.64 -0.02 -1.44 M3.5III 265 0
10 * tet Cen PM* 14 06 40.94752 -36 22 11.8371 3.94 3.04 2.05 1.29 0.76 K0-IIIb 239 0
11 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2159 0
12 * gam Boo dS* 14 32 04.6717964 +38 18 29.704270 3.33 3.21 3.02 2.88 2.80 A7IV+(n) 233 0
13 * iot Dra V* 15 24 55.7746265 +58 57 57.834445 5.68 4.45 3.29 2.51 1.91 K2III 374 1
14 HD 148374 ** 16 23 47.1538745923 +61 41 47.293209688       6.77   G8III 56 0
15 * eta Dra PM* 16 23 59.4906150026 +61 30 51.247636023 4.35 3.65 2.74 2.12 1.66 G8-IIIab 279 0
16 * eps Sco PM* 16 50 09.8108127 -34 17 35.633735 4.61 3.45 2.29 1.43 0.83 K1III 202 0
17 * kap Oph LP? 16 57 40.0978499 +09 22 30.112596 5.52 4.36 3.20 2.36 1.82 K2III 288 0
18 * bet Oph PM* 17 43 28.3526482 +04 34 02.295484 5.150 3.930 2.750 1.96 1.38 K2IIICN0.5 455 0
19 * gam Dra * 17 56 36.36988 +51 29 20.0242 5.630 3.760 2.230 1.08 0.23 K5III 520 0
20 * gam02 Sgr PM* 18 05 48.4880988 -30 25 26.723458 4.77 4.00 2.99 2.26 1.75 K0+III 131 0
21 * 111 Her PM* 18 47 01.2324617275 +18 10 53.438109142 4.56 4.49 4.36 4.19 4.13 A5III 149 0
22 * eps Cyg ** 20 46 12.6823609 +33 58 12.924926 4.370 3.520 2.480 1.73 1.19 K0III 483 0
23 * nu. Oct SB* 21 41 28.5420355132 -77 23 24.031541832   4.745 3.728 5.46   K1III 110 1

    Equat.    Gal    SGal    Ecl

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2021.01.22-21:50:21

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