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1.2-m Mercator telescope

mercator observatory
 

1.2-m Mercator telescope


website
Location Roque de los Muchachos Observatory (La Palma, Canary Islands, Spain)
Coordinates 28°46′ north, 17°53′ west
Altitude 2333m
Type optical alt-azimuth reflecting telescope
Opterated by KU Leuven (Louvain, Belgium)
Instruments
  • HERMES (high-resolution spectroscopy)
  • MAIA (3-channel fast photometry)
 

Telescope time

Request based on observing proposals:

Form Template in LaTeX
Submission Proposal in PDF format by e-mail to Hans Van Winkel
Requirement PI affiliated to a partner institute of the HERMES consortium
 

Observing cycles

Cycle A 1 April - 30 September (proposal deadline: end-February/begin-March)
Cycle B 1 October - 31 March (proposal deadline: end-August/begin-September)
 

Instruments

HERMES (High Efficiency and Resolution Mercator Echelle Spectrograph): (website; Raskin et al., 2011, A&A 526, A69)

Wavelengths 377-900 nm (55 orders)
Spectral resolution 85,000
Second fiber sky spectrum (HRF_OBJ mode) or wavelength reference spectrum (HRF_WRF_OBJ_TH mode)
Throughput >25% in V
Radial velocity stability >~2.5 m s-1
Limiting magnitude >60 min exposure ⇒ SNRV = 100 for mV = 10.4 mag
Stray light ~0.1% of flux in adjacent orders, free of ghosts
 

MAIA (Mercator Advanced Imager for Asteroseismology): (website; Raskin et al., 2013, A&A 559, A26)

Field-of-view 9.4 x 14.1 arcmin
Filters u, g, r+i for science (simultaneous)
z for guiding
Detector 2048 x 6144 (13.5 micron) pixels; 3 science cameras and 1 guiding camera
Readout time 295 ms for frame transfer shift, 30-43 s for full-frame readout