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20 October 2009 Institut d'Astrophysique et de Géophysique Université de Liège. Poznań Astronomical Observatory of Adam Mickiewicz University Poznań, Poland. Radial-velocity observations with a new Poznań Spectroscopic Telescope. Our team R. Baranowski, P. Bartczak, W. Borczyk, - PowerPoint PPT Presentation
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Radial-velocity observations with a newPoznań Spectroscopic Telescope
20 October 2009
Institut d'Astrophysique et de Géophysique
Université de Liège
Poznań Astronomical Observatoryof Adam Mickiewicz University
Poznań, Poland
Our team
R. Baranowski, P. Bartczak, W. Borczyk, W. Dimitrow, M. Fagas, R. Hirsch, K. Kamiński, A. Kruszewski, K. Kurzawa, T. Kwiatkowski, A. Przybyszewska, A. Rożek, A. Schwarzenberg-Czerny, N. Żywucka ...
The telescope
Mirrors diameter – 0.5 m
Focal length – 2.2 m
Optical system – Newtonian
Diameter of the fibers – 50 m
Control room
Remote control test with web cameras
CCD camera:Andor DZ 4365-stage peltier cooling Temp. –95°C2048 x 2048 pix
pixel size 13.5 x 13.5μmdark current <1el/hreadout noise 2.1 el/pix
Echellé spectrograph
Spectral range:
4480 Å – 9250 Å
Resolution:
R=35000 (~8 km/s)
The echellé spectrograph
Baudrand and Bohm (1992)
Acquisition box
Echellé spectrum – 64 orders
4480 Å – 9250 Å
blue range: 1pix = 0.04 Å order length = 80 Å every order adds 40 Å
middle: 1pix = 0.05 Å ~2.5 km/s order length = 100 Å every order adds 80 Å
red range: 1pix = 0.08 Å order length = 160 Å every order adds 125 Å
ThAr calibration spectrum
1400 lines
Flatfield - fringe
Flatfield - fringe
Telluric lines removal
Flux calibration
Sp=B1
V=1m
exp=250s
Hβ 4861 Å
Line profile
Limiting magnitude BD+39 3012C 11m.2 Sp=F5 exp=30min
analysed by A. Rożek
V2080 Cyg
Sodium
NaD
V2080 Cyg
detached binary
Sp=F5
V=7m.4
exp=600s
period=4.9d
analysed by K. Kamiński
28 And
δ Sct
Sp=A7III
V=5m.2
exp=600s
analysed by T. Kwiatkowski, W. Borczyk and A. Rożek
V440 Per
δ Cep
Sp=F7Ib
V=6m.3
exp=600s
okres=7.57d
σRV=136 m/s---2 harmoniki---1 harmonika
analysed by M. Fagas, A.Schwarzenberg-Czerny, R. Smolec, published: MNRAS 396, 2194 - 2200
Bootis
analysed by M. Fagas
γ Peg
β Cep
Sp=B2IV
V=2m.8
exp=300s
period=3.4h
υ1=6.59 c/d
analysed by W. Dimitrov
Quadruple system
Rozhen
PST
Two mirror observing mode
Two mirror observing mode
Two mirror observing mode
Iodine cell
Iodine cell
Iodine cell
First tests 7 february 2009RV = 20 m/s
Iodine cell
Mixing object light with callibrating ThAr lamp
Mieszanie światła obiektu i lampy ThAr
Photometry
Current statistics
• 2 years of operation
• 1650 spectra
• 50 objects
Future perspectives
• Spectroscopy on both mirrors
• Simultaneus photometry and spectroscopy
• Observing with iodine cell