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Spectra of Nearby Galaxies Measured with a New Very Broadband Receiver
spectrographs spectroscopic
2014/12/23
Three-millimeter-wavelength spectra of a number of nearby galaxies have been obtained at the Five College Radio Astronomy Observatory (FCRAO) using a new, very broadband receiver. This instrument, whi...
Polypropylene Embedded Metal-Mesh Broadband Achromatic Half Wave Plate for Millimeter Wavelengths
Embedded Metal-Mesh Broadb Achromatic Half Wave Plate Millimeter Wavelengths
2011/10/11
We describe a novel multi-layered metal mesh achromatic half wave plate for use in astronomical polarimetric instruments. The half wave plate is designed to operate across the frequency range from 125...