astrobiology with robotic telescopes at cab dr. luis cuesta grupo telescopios robóticos centro de...
TRANSCRIPT
Astrobiology with Robotic Telescopes at CAB
Dr. Luis Cuesta
Grupo Telescopios Robóticos
Centro de Astrobiología
Work
sh
op
on
Rob
oti
c A
uto
nom
ou
s O
bserv
ato
ries
Mála
ga,
20
May 2
00
9
GROUP OF ROBOTIC TELESCOPES AT CAB
Head Luis Cuesta Crespo
Science Teresa Eibe García Aurora Ullán Nieto
Technician Jorge Navas Díaz (control) Antonio Pérez Verde (electronic)
TEA
MRobotic Telescopes
WH
ER
ERobotic Telescopes
TH
E
DO
ME
Robotic Telescopes
TH
E T
ELES
CO
PE
Robotic Telescopes
TH
E T
ELES
CO
PE
Robotic Telescopes
Robotic Telescopes
Reflector telescopes 40-50 cm f/10 (~0.5 º)
Classic Cassegrain configuration Parabolic primary Hyperbolic secondary
Equatorial mount Direct transmission Friction
Dome Form 0º to 90º Motorized Automatic
FEA
TU
RES
Robotic Telescopes
CCD Finger Lakes 4008 x 2672
0.37 "/pix 24' x 16'
9 μm Refrigerated
Filters Johnson (UBVRI) [OIII], Hα ,Hβ, … Red, Green, Blue
Presence Interactive
Remote Interactive (from the
distance) Robotic
Programmed
FEA
TU
RES
Two computer per telescope Control Data
LINUX UPS INTERNET GPS (time control) Weather station Air conditioned Remote activation
Robotic TelescopesN
ET
Robotic Telescopes
Talon (Optical Mechanics Inc.) Graphical interface
Telescope Dome Filters Focus
Camera Exposition time Binning Shutter Statistics and samples Data reduction
Tools Sky Remote On-off
OP
ER
ATIO
N
Robotic Telescopes
Scientific Activity Astrobiology
Exoplanets Search Characterization
Solar type stars Comets and NEOs
Other lines Variable stars Opportunity objects Galactic surveys (PN, HII, SNR)
OB
JEC
TIV
ES
SEARCH
First detection Mayor y Queloz
51 Peg b (1995) ~350 detected
ExoplanetsO
BJE
CTIV
ES
Perryman, 2000
ExoplanetsS
EA
RC
H
DETECTION METHODS
Transits Photometry
(0.01-1%)=>mmag Repeatability 59 planets HD 209458 b (1999)
47 pc 0.69 MJ
1.32 RJ
0.045 UA 3.5 d 86.7 º
2,5 hours
ExoplanetsS
EA
RC
H
Exoplanets
WASP-1 WASP-2
WASP-3 WASP-4
SEA
RC
H
0
5
10
15
-2 -1,5 -1 -0,5 0 0,5 1
No
mb
re d
'ob
jets
log (distance en ua)
0
5
10
15
20
25
30
35
0 1 2 3 4 5 6
No
mb
re d
e p
lan
ètes
Distance (ua)
Exoplanets
All the sky Not at all D
CH
AR
AC
TER
IZA
TIO
N
Super-Jupiter Giants Hot Young
Close to the star Most ~ 1 UA Moderated Eccentricity
¿Instrumental?
Exoplanets
Use of Robotic Telescopes Data about the planet
A lot of observation time Light curves => increase s/σ
Mass, size and distances Begin and end
Orbital cycles Max and min
CH
AR
AC
TER
IZA
TIO
N
Exoplanets
ATMOSPHERES IN THE TRANSIT
Identification of the atmosphere Fast differential
Photometry Entrance and exit phase λ?, limb effects?
HD 209458b
CH
AR
AC
TER
IZA
TIO
N
Results
EG Cep
Study of OMC objects
Study of light curves with longer time base Study with multiple filters Confirmation of orbital periods
Results
Rs1 IOMC078
TH
E P
LA
CE
Robotic Telescopes