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RSAA runs its research telescopes into the Mount Stromlo Observatory and Siding Spring Observatories.

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Wide-Field Spectrograph (WiFeS)

WiFeS can be an integral-field, or imaging, spectrograph, which means that it records a range from each pixel regarding the area this is certainly imaged. WiFeS had been created and built at RSAA and installed during the 2.3m telescope in might 2009. The look attracts upon the history of both the RSAA’s Dual-Beam Spectrograph (DBS), while the image-slicer that is concentric associated with Near-infrared Integral-Field Spectrograph (NIFS) that has been produced by RSAA when it comes to Gemini Observatory.

WiFeS was created to deliver as much spectra that is simultaneous possible over a continuing area associated with sky, each covering as wide a spectral range that you can. It runs over the complete wavelength range that is optical. Two split digital cameras are acclimatized to record the spectra, each optimised for a part that is particular of wavelength range. More details about spectroscopy and exactly how WiFeS works is found within the content WiFeS therefore the art that is fine of.

WiFeS will be utilized for a broad array of medical applications, including:

• Findings of enigmatic, extremely remote Gamma-Ray Bursts
• Studies of old movie movie stars within our Galaxy that may offer information on just exactly exactly how it had been assembled
• Studies of mass being ejected from young movie stars being nevertheless being created and therefore are just like our Sun, to know exactly how planets form
• Measurements associated with interior motions in galaxies to look for black colored holes within their cores and dark matter in their exterior components
• Studies of this motions of gasoline around remote quasars and radio galaxies.

Fundamental specs

• Field of view: 38 x 25 arcsec (25 slitlets which are 1 arcsec wide and 38 arcsec long)
• Wavelength protection: 330 – 900 nm
• Detectors: 4096 x 4096 pixel Fairchild Imaging CCD in each digital camera
• Pixel size: 15 microns
• Pixel scale: 1 arcsec (slitlet width) x 0.5 arcsec (spatial sampling along slitlets)

Information for observers

WiFeS is really a double-beam, image-slicing, integral-field spectrograph that records optical spectra over a contiguous 25 arcsec x 38 arcsec field of view. This spatial industry is divided in to twenty-five 1 arcsec wide “slitlets” with 0.5 arcsec sampling across the 38 arcsec lengths.

Both of this cameras for the blue and red networks are designed with a x that is 4k pixel CCD detector. The range that is spectral of tool expands from 330 to 920nm. This range could be seen in a solitary publicity of every of the red and blue digital digital cameras utilizing the low-resolution grating setup (R=3000) plus in two exposures utilizing the group of four high-resolution gratings (R=7000).

Requirements

• Nasmyth focus, tool de-rotator
• Concentric image-slicing IFU
• Field of view: 38 x 25 arcsec (25 slitlets which are 1 arcsec wide and 38 arcsec long)
• Wavelength protection: 330 https://findmybride.net – 920 nm
• Detectors: 4096×4096 pixel Fairchild Imaging CCDs (red and cameras that are blue
• Pixel size: 15 microns
• Pixel scale: 1 arcsec (slitlet width) x 0.5 arcsec (spatial sampling along slitlets)

To learn more in regards to the requirements and make use of associated with the WiFeS tool, please down load the documents shown regarding the right hand side associated with web page and also you may also find useful listed here site:

WiFeS gratings

Efficiency

Start to see the book Dopita et al. (2009) for detailed information regarding the performance for the tool.

Measured throughput

The calculated throughput that is final of tool (and telescope) are plotted below for every grating (aside from U7000).