01*!/)+** /,*=07+#2*/2* >+?&-*@+..+-/A*B/.60*C&#/D@/E* · 2012-11-14 · RLSSTUU* Lucky imaging...
25
!"#$%#&'&() +,- %./%0.$01 /2 30%#0. %#+,0( '+,-&-+(014 5&67 1%+$+# &8+6&,6 +,- 9: 1("-&01 +( ;+#+. <#(/ <,-.01 !/)+ /, =07+#2 /2 >+?&- @+..+-/A B/.60 C&##/D@/E
Transcript of 01*!/)+** /,*=07+#2*/2* >+?&-*@+..+-/A*B/.60*C&#/D@/E* · 2012-11-14 · RLSSTUU* Lucky imaging...
!"#$%#&'&()*+,-*%./%0.$01*/2**30%#0.*%#+,0(*'+,-&-+(014*
5&67*1%+$+#*&8+6&,6*+,-*9:*1("-&01*+(*;+#+.*<#(/*
<,-.01*!/)+**/,*=07+#2*/2*
>+?&-*@+..+-/A*B/.60*C&##/D@/E**
!"#$%&&"'$()&)")#*+,-".%/0"$12$")'(3(4"%&)/4*3/5"10(21526"#/"%&7&8#"2+#10*%/1&$?01*(5+"")#*+,"8"#$%#&'&()*/2*(70*7/1(*1(+.6"#/"$12$9)'&8#%(4"%&)/4*3/5"./%":;"<(5+"%#+,0(*%./%0.$01="
F+#10*%/1&$?01*G(0##+.*%./%0.$01*
*
G(0##+.*%./%0.$01* H#+,0(*%./%0.$01*
IMAGING: False positives
F+#10*%/1&$?01*
>/?90())"@A" >/?90())"@A"B"C(8D2%E"/C7&8#" F%(G152"&841')&"
A(8D2%/*5+"@A" A(8D2%/*5+"<4(%2&%="'4(5&#" H#&44(%")'/#"
IMAGING: False positives
F+#10*%/1&$?01*
>/?90())"@A" >/?90())"@A"B"C(8D2%E"/C7&8#" F%(G152"&841')&"
A(8D2%/*5+"@A" A(8D2%/*5+"<4(%2&%="'4(5&#" :&(4"<4(%2&%='4(5&#"?1#$"(""C(8D2%/*5+"/C7&8#"
"" "" ""
""
IMAGING: False positives
;/,I6".+$/,1*+#.0+-)*.0J0'(0-*=)*/(70.*(0'7,&K"01*1"'7*+1*#/,6D(0.8*%7/(/80(.&'*1".?0)1A*%7/(/D'0,(./&-*8/$/,A*0('L**
IMAGING: False positives
;/,I6".+$/,1*(7+(*'+,*=0*.0J0'(0-*M&(7*/".*7&67D1%+$+#*.01/#"$/,*&8+6&,6*
Phases of our follow-up
H5<GN* O=J0$?0* P,1(."80,(* Q&%/*-0*-+(/1*
I"9 "J/"+&#&8#"1)/4(#&+"$/)#"9 "J/"+&#&8#""0*43'4&"),)#&0)"<K"/%"0/%&")#(%)="
!)#%(>*L"<>*8D,"M0(2152="
N12$9)'(3(4":&)/4*3/5"10(2152"
K"9"O$(%(8#&%1G(3/5"$/)#E"9"O$(%(8#&%1G(3/5")#&44(%"8/0'(51/5-"'$,)18(4"()/81(3/5P"
O!QRH" >/?9%&)/4*3/5")'&8#%/)8/',"
S"9"O$(%(8#&%1G(3/5")#(%9'4(5&#"(5+"'4(5&#"'%/'&%3&)""
O!Q@"H#(C4&6"$12$9)'&8#%(4"
%&)/4*3/5")'&8#%/)8/',"
RLSSTUU*
Lucky imaging with Astralux
Calar Alto 2.2m
AstraLux is a Lucky-Imaging camera installed at the 2.2m telescope at Calar Alto. With a FOV of 24x24 arcsec, it obtains thousands of images of short-exposure time (tens of miliseconds, below the typical timescale of the atmosphere changes) to achieve diffraction-limited images of 0.1 arcsec.
The shape of the Kepler PSF: an important factor
R*%"!)#%(4*L"10(2&"?1#$"#$&"T&'4&%"')."/U&%10'/)&+E"@(8$"D&'4&%"'1L&4"1)"VLV"(%8)&8"4(%2&"(5+")&U&%(4"'1L&4)"(%&"*)&+"15"#$&"('&%#*%&E"!)"15"#$1)"10(2&6")&U&%(4"/C7&8#)"8/*4+"41&"15)1+&"#$&"('&%#*%&6"(W&8352"'$/#/0&#%,"(5+"&U&5#*(44,"0(D152"'4(5&#")0(44&%"#$(5"#$&,"(%&E""""
Results: many visual companions
V0**7+?0*2/",-*WWW*'/8%+,&/,1*,0+.*(70*XY*/=10.?0-*7/1(1*Z'#/10.*(7+,**WRT[L**
Results: many visual companions
HXHH"'$/#/0&#%,"8(5"C&"%&8/U&%&+"./%"0/)#"/."1#"<5/"15"#$&"T&'4&%"8(#(4/2="
8&A'/8%#0(0*\*WYL]*8+6*
8&A-0(0'(***\*^^LR*8+6*
Completeness and detectability limits
>0(0'(+=&#&()*#&8&(1*2/.*/".*1".?0)L*V0*/=(+&,0-*-00%*&8+601*M&(7*(70*1+80*0E%/1".0*$801*+1*(70*1'&0,$I'*&8+601*(/*80+1".0*(70*,"8=0.*/2*-0(0'(0-*1(+.1*/,*0+'7*8+6,&("-0*=&,L***"
Sensibility limits
G_9*\*WR*G_9*\*S*
`8&A#&8**\*aLa*b*cLR*8+6*
O".*10,1&=&#&()*%#/(1*17/M*(7+(*M0*.0+'7*aLaDcLR*8+6,&("-01*2/.*G_9\S*-0(0'$/,1*M&(7&,*W*+.'10'*2./*(70*(+.60(*+,-*8+6,&("-0*-&d0.0,'01*/2*SLR*8+6*2/.*+,*/=J0'(*#/'+(0-*+(*RL]*+.'10'L****
RESULTS: visual companion
Q7.00*/=J0'(1*+.0*2/",-*(/*7+?0*=/(7*/=J0'(1*M&(7&,*S*+.'10'*+,-*SDc*+.'10'*"
P1/#+(0-*Z,/*/=J0'(1*M&(7&,*c*+.'10'[*"<(*#0+1(*/,0*/=J0'(*-0(0'(0-*M&(7&,*SDc*+.'10'*"
<(*#0+1(*/,0*/=J0'(*-0(0'(0-*M&(7&,*S*+.'10'L**"
RESULTS: physical companion
We*3OP1*Z7/1(1[**WX*'/8%+,&/,1**^^*%#+,0(*'+,-&-+(01*
Characteristics of the companions
Q7&1*1%0'(.+#*()%&,6*M0.0*/,#)*%/11&=#0*2/.*/=J0'(1*M&(7*&Df*g*RL^WL*N+.#&0.D()%0*/=J0'(1*-/*,/(*%.010,(*#+.60*-&d0.0,'01*&,*(7010*'/#/.*1/*(7+(*'+,*,/(*=0*'#+11&I0-L*V0*7+?0*2/",-*e*!D()%0*'/8%+,&/,1*+,-*^*#+(0D3*1(+.1*+./",-*/".*3OP1L*"
Characteristics of the companions *
Planet parameter need to be recomputed if visual companion is present
∆F =Fnt − Ft
Fnt
∆Fnew = (1− 10−0.4∆mz )∆F
Q.+,1&(*-0%(74*
_0M*-0%(74*
Rp
R∗=√
∆F
H#+,0(*.+-&"14*
Conclusions (I)
! "N12$")'(3(4"%&)/4*3/5"10(2152"1)"5&&+&"#/"U(41+(#&"#$&"'4(5&#"8(5+1+(#&E"
! M)/4(#&+"$/)#-*aYhE"
! "Y/%&"#$(5""]R*h"$(U&")#&44(%"U1)*(4"8/0'(51/5)""! "Weh*/."#$&"$/)#"$(U&"8/0'(51/5)"84/)&%"#$(5"STE""
! "Y*%/11&=#0*=/",-0-*3PO1""
Phases
H5<GN* O=J0$?0* P,1(."80,(* Q&%/*-0*-+(/1*
I"9 "J/"+&#&8#"1)/4(#&+"$/)#"9 "J/"+&#&8#""0*43'4&"),)#&0)"<K"/%"0/%&")#(%)="
!)#%(>*L"<>*8D,"M0(2152="
N12$9)'(3(4":&)/4*3/5"10(2152"
K"9"O$(%(8#&%1G(3/5"$/)#E"9"O$(%(8#&%1G(3/5")#&44(%"8/0'(51/5-"'$,)18(4"()/81(3/5P"
O!QRH" >/?9%&)/4*3/5")'&8#%/)8/',"
S"9"O$(%(8#&%1G(3/5")#(%9'4(5&#"(5+"'4(5&#"'%/'&%3&)""
O!Q@"H#(C4&6"$12$9)'&8#%(4"
%&)/4*3/5")'&8#%/)8/',"
CAFÉ: the planetary system properties
! Z&?")'&8#%/2%(0"(#"O(4(%"!4#/E"! O/001))1/5152"15"Y(,9[*5&"K\III"<!8&1#*5/"&#"(4E"K\IK="! H158&"#$&56"?&"$(U&"C&&5"*)152"#$&"H'(51)$"FJR"(5+"/'&5"30&""
Median: 0.80 arcsec (639364 data points)
Median: 0.169 mag/AM (408820 data points)
X1)#%1C*3/5"/."H&&152" X1)#%1C*3/5"/.";9@L3583/5"
]&%1/+-"[(5E"K\\^"_"R8#E"K\IK"
O(4(%"!4#/")#(3)38)"
O!Q`"(#"KEK0-"8/001))1/5152"+(#("
Aceituno et al. (2012), in press
M513(4"+(#(-"?&")&&"D5/?5"'4(5&#)"
Beyond our expectations: the RV accuracy
V0*+.0*60i,6*'#/10*(/*(70*/%$8+#*?+#"014*WRj1*
First result: a multiple system
Thanks!!!
And stay tuned
