Exoplanets with Known M Min and a as of April 2014
description
Transcript of Exoplanets with Known M Min and a as of April 2014
Exoplanets with Known MMin and a as of April 2014
From the ExoPlanet Catalog at http://exoplanet.eu/catalog/
2 2
95
169
465
216
10
50
100
150
200
250
300
350
400
450
500
0.1 1 10 100 1,000 10,000 100,000
Num
ber o
f Pla
nets
Mass Bin in MEarth
950 Exoplanets with Known MMin and a as of April 2014
The histogram below shows the number of exoplanets in the mass bins where the mass of the exoplanet is less than or equal to the number under the bar but greater than the mass of the adjacent lower bin.
331
177
84
288
2911 6 13 7 4
0
50
100
150
200
250
300
350
0.1 0.5 1 5 10 50 100 500 1000 5000
Num
ber o
f Pla
nets
Semi-major Axis Bin in AU
950 Exoplanets with Known MMin and a as of April 2014
The histogram below shows the number of exoplanets in the semi-major axis bins where the a of the exoplanet is less than or equal to the number under the bar but greater than the a of the adjacent lower bin.
366
145
105
6137 26 20 14 6 3
0
50
100
150
200
250
300
350
400
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Num
ber o
f Pla
nets
Eccentricity
783 Exoplanets with Known MMin, a and e as of April 2014
The histogram below shows the number of exoplanets in the eccentricity bins where the e of the exoplanet is less than or equal to the number under the bar but greater than the e of the adjacent lower bin.
1 1 1 4 4 4 5 11 11 18 29 48 61 91 118 149 182 211271
332412
525
696
808
931 950
0
100
200
300
400
500
600
700
800
900
1000
Cum
ulati
ve N
umbe
r of
Pla
nets
Year
950 Exoplanets with Known MMin and a as of April 2014
This histogram shows the total number of exoplanets with known masses and semi-major axes as a function of year. Note the 2014 year is only one third of the way through – more planets will be discovered this year.
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04
Min
imum
Pla
neta
ry M
ass,
MJu
pite
r
Orbital Semi-major Axis, AU
950 Exoplanets with Known MMin and a as of April 2014
1 MEarth = .00314 MJupiter
1 AU
1 MJupiter
This plot compares the semi-major axis of the exoplanets with their mass. The yellow dots represent the planets in our Solar System.