KCWI is a bench-mounted spectrograph installed at the Keck II right Nasmyth focal station. KCWI provdes visible band (350-1050 nm), seeing-limited integral field spectroscopy with moderate to high spectral resolution, with a configurable FOV and image resolution formats.

WeAreIowa.com is the official website for WOI-TV/KWCI-TV, your trusted source for breaking news, weather and sports in Des Moines, IA

The Keck Cosmic Web Imager (KCWI) is a wide field, seeing limited, integral field spectrograph (IFS) optimized for precision sky limited spectroscopy of low surface brightness phenomena. KCWI features high throughput and flexibility in field of view (FOV), spatial sampling, bandpass, and spectral resolution.

KCWI-TV (channel 23) is a television station licensed to Ames, Iowa, United States, serving as the CW affiliate for the Des Moines area. It is owned by Tegna Inc. alongside ABC affiliate WOI-DT (channel 5), also licensed to Ames.

KCWI can do both imaging and spectroscopy in a single observation, recording an image of an object at multiple wavelengths. This allows scientists to study both the spatial dimension of the image and the spectral dimension, or color, of an object.

2025年2月13日 · We find that the locations of the detected rings are an excellent match to predictions from analytic theory, if the galaxy was a 10-ring system whose outermost ring has faded away. We identify the likely impacting galaxy via Keck/KCWI spectroscopy, finding evidence for gas extending between it and the Bullseye.

2018年7月26日 · We report on the design and performance of the Keck Cosmic Web Imager (KCWI), a general purpose optical integral field spectrograph that has been installed at the Nasmyth port of the 10 m Keck II...

2017年12月14日 · The red channel of KCWI is called the Keck Cosmic Reionization Mapper (KCRM) and the combination of KCWI-Blue and KCRM will provide simultaneous high efficiency spectral coverage across the entire visible spectrum.

The Keck Cosmic Reionization Mapper (KCRM) is bringing KCWI to its full potential by adding a red spectrograph arm that is used simultaneously with the blue spectrograph arm; they share the same field of view and use the same slicer. The red spectrograph has 7 red gratings (1 low, 2 medium, and 4 high dispersion).

Commissioned in 2017, KCWI is a high throughput integral field spectrograph covering the range from 3700 Angstrom to 5600 Angstrom (it will be extended to 1 micron with the installation of the red side, the Keck Cosmic Reionization Mapper, which will be available to the community in 2022) with resolutions from 900 to 18,000.