the thüringer landessternwarte tautenburg
DESCRIPTION
The Thüringer Landessternwarte Tautenburg. Thüringer Landessternwarte Tautenburg Personnel. 1 Director. 7 Permanent Scientists. 2 Postdoc Scientists (Chretian, EU RTN). 6 Ph.D. Students (DFG, DLR). 3 Diploma students. 3 Telescope support (1 is optical designer). - PowerPoint PPT PresentationTRANSCRIPT
The Thüringer Landessternwarte Tautenburg
Thüringer Landessternwarte TautenburgPersonnel
1 Director
7 Permanent Scientists
2 Postdoc Scientists (Chretian, EU RTN)
6 Ph.D. Students (DFG, DLR)
3 Diploma students
3 Telescope support (1 is optical designer)
3 Administration + house keepers, gardner, maintenance
2 Computer administrators/programers
2 Electronics2 Mechanical workshop
Wild pigs, deer, foxes, and ticks
Thüringer Landessternwarte Tautenburg
TLS: An International Institute
Postdocs: Uzbekistan (Chretian Grant), Italy (EU RTN)
Ph.D. Students: Brasil, Croatia, Italy, Spain, Ukraine,Venezuela, …
Scientific Visitors: Canada, Egypt, Georgia, Italy, Ireland, USA, S. Korea, Ukraine, …
Research Activities of TLS
• Star formation, jets and outflows • Extrasolar planets and Brown Dwarfs• Magnetic activity on stars• Stellar oscillations• Gamma Ray Bursts• Quasars and active galaxies
=> Small institute, yet diverse
Instrumentation of the Alfred-Jensch 2m Telescope
Schmidt Camera:
• Objective Prism (R~50)
• 50 x 50 arcmin FOV (0.7´´ per pixel)
• 3.3o x 3.3o with photographic plates
• ca. 10000 plates since 1960• CCD Camera installed in 1996
Instrumentation of the Alfred-Jensch 2m Telescope
Naysmyth Faint Object Spectrograph:
• 3500-10000 A
• Installed in 2001
• SITe 1024x800 CCD (0.53´´/pixel)• 5 grisms (100 to 230 A/mm)
Instrumentation of the Alfred-Jensch 2m Telescope
Coude Echelle Spectrograph:
• iodine absorption cell for precise radial velocity measurements
• Installed in 1995
• R=67.000• grism crossed dispersed: 3400-9270 Ang.
Key Program: Radial Velocity Search for Extrasolar Planets
Tautenburg Observatory Planet Search Program
Thüringer Landessternwarte TautenburgArtie Hatzes Eike Guenther (young stars, brown dwarfs)Massimiliano Esposito (young stars) Michael Hartmann (metal rich stars, A-type stars)
The Team: Radial Velocity Searches
ESO
Michaela Döllinger (K giant planets and oscillations)
Collaborators:
Bill Cochran, Mike Endl, Barbara McArthur, Fritz Benedict (McDonald Observatory) – (M dwarf program with Endl)Martin Kürster (MPIA)David Mkrtichian (ARCSEC)Johny Setiawan (MPIA Heidelberg)
Iodine cell
HD 13189: The First Tautenburg Planet
Period 471 ± 6 d
RV Amplitude 173 ± 10 m/s
e 0.27 ± 0.06
a 1.8 AU
Msin i 13 MJupiter
The Planet
M = 3.5 Msun
[Fe/H] = –0.58
K2 II-III
The Star
Schuler et al. (2005)
Gem
CFHT McDonald 2.1m
McDonald 2.7m TLS
Sp.T. = F4 M* = 1.4 Solar Masses
m sin i = 13 MJupiter
Period = 328 d
a = 1.06 AU
e = 0.15
M* = 1.2 Solar Mass K giantm sin i = 6.6 MJupiter
Period = 266 d
a = 0.86 AU
e = 0.45
Döllinger Ph.D. work:
Orbiting star M5 VRadius [Rsun] 0.35
Mass [Msun] 0.22
TOPS Program: Transit Confirmation
Thüringer Landessternwarte Tautenburg Jochen EislöffelHolger VossPhilipp EigmüllerRV Team for follow-up
The Team: Transit Searches
DLR (BEST collaboration)Heike RauerAnders Erikson
CoRoT German Team:Martin PätzoldLudmilla CaroneGünther Wuchterl+ DLR Team
The Tautenburg Exoplanet Search Telescope
BEST @TLS TEST
FoV 3.1o × 3.1o 2.2o × 2.2o
Plate scale/pixel 5.5´´ 1.9´´
Magnitude for 1% photometry
13.5 – 14.0 14.8 (R filter 4m exp.)
CCD 20482, 14m 40962, 9m
Aperture 20 cm 30 cm
Type Schmidt Schmidt
Filters None BVRI (planned)
TEST first light Nov 2005…
…but problems with mount and guiding
BEST: 240 sec exposure
TEST: 30 sec exposure
13.7
13.4
1% photometry down to ~15 mag
TLS Contributions to NAHUAL
Person Power:
• Expertise in absorption cell
• Small workshop that is overstretched → small parts
• CAD work possible
• Limited Electronics/Computer support
• Science contributions
TLS Contributions to NAHUAL
Money:
• Best to spread costs over several budget years
• 80.000 – 100.000 in 2007 Budget
• 2008/2009 Budget will be prepared early next year
• Money has to be spent in a given budget year. Transfer to next year possible but difficult
• Specific items need to be identified and bids made
• Memorandum of Understanding important