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Searching for planets sculpting “Holey Debris Disks” with the NIRC2/Vortex in L’-band
Tiffany Meshkat JPL/Caltech Postdoc
Gautam Vasisht, Dimitri Mawet
Vortex Workshop 2016
0.01 0.1 1 10 100
10
1
0.1
0.01
10-3
Separation [Astronomical Units (AU)]
Plan
et M
ass
[Jup
iter M
ass]
exoplanets.org | 5/18/20152016
Transits Radial Velocity Microlensing Direct Imaging
exoplanets.org
• Inner working angle and contrast limits
• Image processing techniques
• Targets
What are the limitations on imaging outer solar system analogues?
Searching for planets in “Holey Debris Disks”
cold outer belt
HR 8799
warm inner belt!
e d
c b
Meshkat et al. 2015
HR8799
Two planets found out of only fifteen targets
Rameau et al. 2013
HD 95086 b
JClio KS, Clio L!Clio
E 1"
N
H2, NICIL!Clio
−10 −5 0 5 10
−5
0
5
606WACS
0 2 4 6
0
1
2
3
4
0 1 2 3
7.5
8
8.5
9
9.5
10
10.5
separation [arcsec]
L! 5σ
con
trast
[mag
]
−0.100.10.20.30.4
−0.1
−0.05
0
0.05
0.1
0.15
0.2
0.25
δ Relative RA [arcsec]
δ R
elat
ive
Dec
[arc
sec]
2013−04−04(if bkgd)
2011−03−21(if bkgd)
2004−12−01(reference
position)
2011−03−21(bkgd sources)
2011−03−21(HD 106906 b)
2013−04−04(HD 106906 b)
HD 106906 b
Bailey, Meshkat et al. 2014
L’NACO
JClio KS, Clio L!Clio
E 1"
N
H2, NICIL!Clio
−10 −5 0 5 10
−5
0
5
606WACS
0 2 4 6
0
1
2
3
4
0 1 2 3
7.5
8
8.5
9
9.5
10
10.5
separation [arcsec]
L! 5σ
con
trast
[mag
]
−0.100.10.20.30.4
−0.1
−0.05
0
0.05
0.1
0.15
0.2
0.25
δ Relative RA [arcsec]
δ R
elat
ive
Dec
[arc
sec]
2013−04−04(if bkgd)
2011−03−21(if bkgd)
2004−12−01(reference
position)
2011−03−21(bkgd sources)
2011−03−21(HD 106906 b)
2013−04−04(HD 106906 b)
HD 95086 b HD 106906 b
Beta Pic b
GJ 504 b Fomalhaut b
HR 8799 bcde
51 Eri b HD 131399 b
2M1207 b
25 Northern hemisphere Herschel resolved targets with Keck/NIRC2 vortex
0.1 1 2 3Angular Separation (arcsec)
0
20
40
60
80
Dis
tanc
e(p
c)
HR 8799
HD 95086
Inne
rW
orki
ngA
ngle
Cold outer belts
Search region for each target
Interesting point sources?
Target #1 RDI
Target #2 RDI
Target #1 LLSG
0.5”
~12 AU
~11 AU
Target #2 LLSG
Target#1 Target#1
Target#2 Target#2