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Update rotational parameters, clarify annotations

pull/31/head
LukeCEL 2020-06-07 11:48:26 -04:00
parent 8a9d78058c
commit 91df3940b2
1 changed files with 24 additions and 19 deletions
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data/nearstars.stc
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@ -137,7 +137,7 @@ Barycenter "Luhman 16:WISE 1049-5319:WISE J104915.57-531906.1"
EllipticalOrbit { # fully specified orientation
Period 27.54
SemiMajorAxis 1.64 # mass ratio 33.51:28.55J
SemiMajorAxis 1.64 # mass ratio 33.51J:28.55J
Eccentricity 0.34
Inclination 135.69
AscendingNode 118.66
@ -154,7 +154,7 @@ Barycenter "Luhman 16:WISE 1049-5319:WISE J104915.57-531906.1"
EllipticalOrbit { # fully specified orientation
Period 27.54
SemiMajorAxis 1.92 # mass ratio 33.51:28.55J
SemiMajorAxis 1.92 # mass ratio 33.51J:28.55J
Eccentricity 0.34
Inclination 135.69
AscendingNode 118.66
@ -1288,24 +1288,25 @@ Barycenter 88601 "70 Oph:Gliese 702:ADS 11046:Struve 2272"
}
}
# rotational parameters from Monnier et al. (2007), Science 317 (5836), 342
# "Imaging the Surface of Altair"
# https://arxiv.org/abs/0706.0867
# rotational parameters from Bouchaud et al. (2020), A&A 633, A78
# "A realistic two-dimensional model of Altair"
# https://arxiv.org/abs/1912.03138
97649 # Altair
{
RA 297.69582730
Dec 8.86832120
Distance 16.730 # 194.95 +/- 0.57
SpectralType "A7IV"
AppMag 0.76
AppMag 0.76
Radius 1396700 # equatorial radius
SemiAxes [ 1 0.81 1 ] # equatorial radius 24% greater than polar
SemiAxes [ 1 0.779 1 ] # equatorial radius 28.3% greater than polar
UniformRotation
{
Period 10.4
Inclination 77.86 # inclination (i) = 57.2 deg
AscendingNode 252.65 # orientation (alpha) = -61.8 deg
Period 7.79 # from equatorial rotational velocity
Inclination 81.21 # inclination (i) = 50.65 deg
AscendingNode 246.44 # orientation (alpha) = 301.13 deg
}
}
@ -3271,13 +3272,16 @@ Barycenter 5336 "MU Cas:30 Cas:Gliese 53"
AppMag 5.24
}
# Rotational parameters based on disk parameters, from
# MacGregor et al. (2017), ApJ 842 (1), 8
# "A Complete ALMA Map of the Fomalhaut Debris Disk"
# https://arxiv.org/abs/1705.05867
Modify 113368 # Fomalhaut
{
UniformRotation
{
Inclination 81.8 # rotation pole matches debris disk
AscendingNode 176.6 # Bouquin et al. (2009) A&A 498, L41-44
# (http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200911854)
Inclination 83.2 # rotation pole matches debris disk
AscendingNode 177.5 # inclination 65.6 deg, position angle 337.9 deg
}
}
@ -3325,17 +3329,18 @@ Modify 65859 # Ross 490
AppMag 12.624
}
# rotational parameters from Monnier et al. (2012), ApJL 761 (1), L3
# "Resolving Vega and the Inclination Controversy with CHARA/MIRC"
# https://arxiv.org/abs/1211.6055
Modify 91262 # Vega
{
SemiAxes [ 1 0.80 1 ] # equatorial radius 25% greater than polar
SemiAxes [ 1 0.887 1 ] # equatorial radius 12.7% greater than polar
UniformRotation
{
Period 12.4
# Inclination 28 # rotation pole points
# AscendingNode 15 # towards solar system
Inclination 147.35 # inclination (i) = 4.54
AscendingNode 192.95 # inclination (i) = 8.6
Period 17.04
Inclination 150.91 # inclination (i) = 6.2
AscendingNode 208.14 # pole position angle = -58
}
}