Rapid Imaging Search for Exoplanets 2 (RISE 2)

A wide field fast imager for exoplanet transit timing camera (RISE2) designed by Prof. J. Meaburn. The camera was designed and built by Queen’s University of Belfast, Liverpool John Moore’s University. The RISE2 instrument on the 2.3m Aristarchos telescope was built for measuring transit timing variation. Its precision allows the detection of Earth-size planets in resonant orbits or more massive planets in nonresonant orbits. We have started to observe candidate planets since 2014 (in collaboration with other telescopes abroad, i.e. LT/RISE) and the first results of our contribution have started to be published in refereed articles in 2016.

  • Astronomical research cameras, Inc, GENIII

  • Status: Available

  • Detector: Andor DW485 1kx1k

  • FOV: 10’x10′

  • Scale (“/pixel): 0.60

  • CCD sensor: E2V CCD47-20 back-illuminated

  • CCD Format: 1024×1024

  • CCD field of view: 10 arcmin

  • Cooling: Thermoelectrically cooled

  • Installation: AGU’s side port (current use ~10′ FOV)

  • Quantum Efficiency (QE) of the ccd camera: See graph

RISE-2 Cookbook

Camera filter wheel

The filter unit contains 2 filter wheels with 6 filter stacks each with an optically free diameter of 62 mm. The filter unit can be attached to the four side ports and to the main port.

  • Wheel 1 is free for use by the astronomer with changeable filters with a thickness up to 5mm. There are 6 filter adapters, which can easily be disassembled from the wheel.
  • Outside of the filter unit the required filter can be mounted. A protection ring fixes the filter inside the adapter. Then the adapter can be assembled back to the filter wheel by fixation of one screw.
  • Wheel 2 is occupied with filters U, B, V, R, I and a neutral glass with a thickness of 3mm and an optically free aperture of 64 mm.

Aristarchos filters for CCD imaging

Emission line CWL (Å) BW (Å) T max (%) Diameter (mm)
[O II] 3726+ [O II] 3729 3731 25 69.91 64
He II 4686 4690 30 76.57 64
Ηβ 4861 4865 30 77.70 64
[O III] 5007 5011 30 83.91 64
[O III] 5007 gal. set 5035 80 85.34 64
[O III] 5007 gal. set 5100 80 88.33 64
[O III] 5007 gal. set 5200 80 88.35 64
CONT. BLUE 5700 70 90.81 64
[O I] 6300 6304 30 87.22 64
Hα 6563 6567 17 69.60 64
Hα 6563+[N II] 6583 6578 40 88.02 64
[N II] 6583 6588 17 79.60 64
CONT. RED 6680 100 77.57 64
[S II] 6717 + 6731 6727 40 81.60 64
Emission line CWL (Å) BW (Å) T max (%) Diameter (mm)
u 3500 330 69.60 64
v 4110 170 96.03 64
b 4680 180 91.57 64
y 5490 240 80.87 64
z >8319 97.82 64

https://helmos.astro.noa.gr/wp-admin/post.php?post=1466&action=edit#

Band CWL (Å) BW (Å) T max (%) Diameter (mm)
U 3700 1000 56.0 64
B 4300 2000 68.0 64
V 5300 2200 85.0 64
R 5600 3500 83.0 64
I 7800 4000 89.0 64

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