Roque de los Muchachos Observatory

Auxiliary port camera

ACAM
ACAM
Location
Band
State
Operation year
2009

    ACAM is mounted permanently at a folded-Cassegrain focus of the 4.2-m William Herschel Telescope. It can be used for high-throughput broad-band imaging, narrow-band imaging and low-resolution spectroscopy.
    The field of view in imaging mode is 8 arcmin (0.25 arcsec/pixel). A set of broad-band filters is available by default (usually Sloan u g r i z) but almost any of ING's filters can be mounted in ACAM.
     
    Low-resolution spectroscopy over ~ 3500 - 9400 A is provided by a VPH disperser. For 1.0- and 0.5-arcsec slits, the on-axis spectroscopic resolutions at 6000 A are R ~ 450 and 900 respectively. At 7000 A, the throughput of ACAM is a factor ~ 1.5 times higher than that of ISIS.
     
    ACAM, like its predecessor (the aux-port camera), is available whenever a prime-focus instrument is not in use, so is well-suited to observing override programmes and targets of opportunity.

    Imaging
     Range: 3300Å to 10000Å
     Optical broad: ugriz + most ING filters
     Scale: 0.25''/px - FoV: 8'x8'
     
    Spectroscopy
     Range: 3500-9400Å
     Resolution: 900/450
     Slit-length: 6'
    Related installation
    William Herschel Telescope (WHT)
    WHT
    William Herschel Telescope
    Telescope
    Imaging
    Spectrograph
    Polarimeter
    Nocturnal
    Ø 420.00 cm
    Type
    Instrument type