J/ApJ/856/155 HZ borders for syst. with a giant planet (Georgakarakos+, 2018)
Giant planets: good neighbors for habitable worlds?
Georgakarakos N., Eggl S., Dobbs-Dixon I.
<Astrophys. J., 856, 155-155 (2018)>
=2018ApJ...856..155G 2018ApJ...856..155G (SIMBAD/NED BibCode)
ADC_Keywords: Exoplanets; Stars, masses; Stars, diameters;
Effective temperatures; Rotational velocities
Keywords: astrobiology; celestial mechanics; planets and satellites: atmospheres
planets and satellites: dynamical evolution and stability
planets and satellites: terrestrial planets
Abstract:
The presence of giant planets influences potentially habitable worlds
in numerous ways. Massive celestial neighbors can facilitate the
formation of planetary cores and modify the influx of asteroids and
comets toward Earth analogs later on. Furthermore, giant planets can
indirectly change the climate of terrestrial worlds by gravitationally
altering their orbits. Investigating 147 well-characterized
exoplanetary systems known to date that host a main-sequence star and
a giant planet, we show that the presence of "giant neighbors" can
reduce a terrestrial planet's chances to remain habitable, even if
both planets have stable orbits. In a small fraction of systems,
however, giant planets slightly increase the extent of habitable zones
provided that the terrestrial world has a high climate inertia. In
providing constraints on where giant planets cease to affect the
habitable zone size in a detrimental fashion, we identify prime
targets in the search for habitable worlds.
Description:
Table 3 provides the orbital elements and the physical parameters of
our systems. The corresponding data were extracted from the NASA
Exoplanet Archive (http://exoplanetarchive.ipac.caltech.edu/).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 190 147 Exoplanetary systems with a giant planet
table4.dat 131 147 Habitable zone borders for systems with e0=0
table5.dat 97 147 Habitable zone shrinkage for systems with e0=0
table6.dat 131 144 Habitable zone borders for systems with e0=ef
table7.dat 97 147 Habitable zone shrinkage for systems with e0=ef
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See also:
J/ApJ/716/1336 : Stability analysis of single-planet (Kopparapu+, 2010)
J/ApJ/770/90 : Candidate planets in the habitable zones (Gaidos, 2013)
J/AJ/161/233 : The revised TESS habitable zone catalog (Kaltenegger+, 2021)
J/AJ/165/34 : HZ Exoplanets from NASA Exoplanet Archive (Hill+, 2023)
http://exoplanetarchive.ipac.caltech.edu/ : NASA exoplanet archive homepage
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Star name
12- 19 F8.3 d Per [0.78/5894] Period
21- 28 F8.3 d e_Per [0/1498]? Lower uncertainty on Per
30- 37 F8.3 d E_Per [0/5584]? Upper uncertainty on Per
39- 43 F5.3 au a [0.014/6.7] Semi-major axis
45- 49 F5.3 au e_a [0/1.4]? Lower uncertainty on a
51- 55 F5.3 au E_a [0/4]? Upper uncertainty on a
57 A1 --- l_e Limit flag on e
59- 63 F5.3 --- e [0/0.8] Eccentricity
65- 69 F5.3 --- e_e [0.002/0.4]? Lower uncertainty on e
71- 75 F5.3 --- E_e [0.003/0.3]? Upper uncertainty on e
77 A1 --- l_Mp Limit flag on m
79- 84 F6.3 Mjup Mp [0.1/10.5] Planet mass
86- 90 F5.3 Mjup e_Mp [0.009/0.7]? Lower uncertainty on Mp
92- 96 F5.3 Mjup E_Mp [0.009/1.2]? Upper uncertainty on Mp
98- 102 A5 --- Type Mass type
104- 108 F5.3 Rjup Rp [0.212/1.549]? Planet radius
110- 114 F5.3 Rjup e_Rp [0.012/0.35]? Lower uncertainty on Rp
116- 120 F5.3 Rjup E_Rp [0.012/0.42]? Upper uncertainty on Rp
122- 125 I4 K Teff [3370/6400] Effective temperature
127- 129 I3 K e_Teff [10/250] Lower uncertainty on Teff
131- 133 I3 K E_Teff [10/250] Upper uncertainty on Teff
135- 139 F5.3 Msun Ms [0.3/1.4] Stellar mass
141- 145 F5.3 Msun e_Ms [0.01/0.2]? Lower uncertainty on Ms
147- 151 F5.3 Msun E_Ms [0.01/0.2]? Upper uncertainty on Ms
153- 157 F5.3 Rsun Rs [0.3/1.3] Stellar radius
159- 163 F5.3 Rsun e_Rs [0.01/0.2]? Lower uncertainty on Rs
165- 169 F5.3 Rsun E_Rs [0.01/0.2]? Upper uncertainty on Rs
171 A1 --- l_vsini Limit flag on vsini
173- 178 F6.3 km/s vsini [0.2/12.4]? Rotational velocity
180- 184 F5.3 km/s e_vsini [0/2]? Lower uncertainty on vsini
186- 190 F5.3 km/s E_vsini [0.04/2]? Upper uncertainty on vsini
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Byte-by-byte Description of file: table[46].dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Star name
12- 15 F4.2 au HZi [0.13/1.45] Inner Habitable Zone
17- 20 F4.2 au e_HZi [0/0.19] Lower uncertainty on HZi
22- 25 F4.2 au E_HZi [0/0.22] Upper uncertainty on HZi
27- 30 F4.2 au HZo [0.26/2.52] Outer Habitable Zone
32- 35 F4.2 au e_HZo [0.01/0.32] Lower uncertainty on HZo
37- 40 F4.2 au E_HZo [0.01/0.38] Upper uncertainty on HZo
42- 45 F4.2 au PHZi [0.14/1.49]? Inner permanently habitable zone (1)
47- 50 F4.2 au e_PHZi [0.01/0.91]? Lower uncertainty on PHZi
52- 56 F5.2 au E_PHZi [-0.02/0.28]? Upper uncertainty on PHZi
58- 61 F4.2 au PHZo [0.25/2.52]? Outer permanently habitable zone (1)
63- 66 F4.2 au e_PHZo [0/1.16]? Lower uncertainty on PHZo
68- 71 F4.2 au E_PHZo [0.02/0.42]? Upper uncertainty on PHZo
73- 76 F4.2 au EHZi [0.14/1.45]? Inner extended habitable zone (1)
78- 81 F4.2 au e_EHZi [0.01/0.83]? Lower uncertainty on EHZi
83- 86 F4.2 au E_EHZi [0.01/0.22]? Upper uncertainty on EHZi
88- 91 F4.2 au EHZo [0.25/2.52]? Outer extended habitable zone (1)
93- 96 F4.2 au e_EHZo [0.01/1.24]? Lower uncertainty on EHZo
98- 101 F4.2 au E_EHZo [0.02/0.42]? Upper uncertainty on EHZo
103- 106 F4.2 au AHZi [0.13/1.45]? Inner averaged habitable zone (1)
108- 111 F4.2 au e_AHZi [0.01/0.19]? Lower uncertainty on AHZi
113- 116 F4.2 au E_AHZi [0.01/0.22]? Upper uncertainty on AHZi
118- 121 F4.2 au AHZo [0.26/2.52]? Outer averaged habitable zone (1)
123- 126 F4.2 au e_AHZo [0.01/0.68]? Lower uncertainty on AHZo
128- 131 F4.2 au E_AHZo [0.01/0.42]? Upper uncertainty on AHZo
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Note (1): We make use of so-called "dynamically informed habitable zones"
(DIHZs), first introduced in Eggl et al. (2012, 2013), and which
assume different "climate inertia" of the terrestrial planet. In this
framework, the most conservative estimate regarding the true extent of
the HZ, the permanently habitable zone (PHZ), is defined as the region
where a planet with zero climate inertia continuously stays within
habitable insolation limits in spite of its possibly elliptic orbit.
The averaged habitable zone (AHZ), on the other hand, is based on the
assumption that the planetary climate can buffer any insolation
extremum, as long as the insolation average over one orbit remains
within habitable limits. Finally, the extended habitable zone (EHZ) is
based on limited buffering capabilities of the terrestrial planet's
climate.
See Section 4.
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Byte-by-byte Description of file: table[57].dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Star name
12- 20 E9.4 % SPHZ [9.3e-5/100] Permanently habitable zone shrinkage
22- 29 E8.3 % e_SPHZ [0/66] Lower uncertainty on SPHZ
31- 39 E9.4 % E_SPHZ [0/71] Upper uncertainty on SPHZ
41- 48 E8.3 % SEHZ [5e-5/100] Extended habitable zone shrinkage
50- 58 E9.4 % e_SEHZ [0/53] Lower uncertainty on SEHZ
60- 68 E9.4 % E_SEHZ [0/78] Upper uncertainty on SEHZ
70- 78 E9.3 % SAHZ [-2.5/100] Averaged habitable zone shrinkage
80- 88 E9.4 % e_SAHZ [0/74] Lower uncertainty on SAHZ
90- 97 E8.3 % E_SAHZ [0/100] Upper uncertainty on SAHZ
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 16-Nov-2023