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Measurement of Galactic Logarithmic Spiral Arm Pitch Angle Using Two-Dimensional Fast Fourier Transform Decomposition
Galactic Logarithmic Spiral Arm Pitch Angle Two-Dimensional Fast Fourier Transform Decomposition
2012/2/23
A logarithmic spiral is a prominent feature appearing in a majority of observed galaxies. This feature has long been associated with the traditional Hubble classification scheme, but historical quotes...
The Infrared Spectrum of Uranium Hollow Cathode Lamps from 850 nm to 4000 nm: Wavenumbers and Line Identifications from Fourier Transform Spectra
Infrared Spectrum Wavenumbers Line Identifications Transform Spectra
2011/10/12
We provide new measurements of wavenumbers and line identifications of 10 100 UI and UII near-infrared (NIR) emission lines between 2500 cm-1 and 12 000 cm-1 (4000 nm to 850 nm) using archival FTS spe...
Calibration of the AKARI Far-Infrared Imaging Fourier Transform Spectrometer
Instrumentation and Methods for Astrophysics (astro-ph.IM)
2010/12/28
The Far-Infrared Surveyor (FIS) onboard the AKARI satellite has a spectroscopic capability provided by a Fourier transform spectrometer (FIS-FTS). FIS-FTS is the first space-borne imaging FTS dedicate...
A polarizing Fourier Transform Spectrometer to characterize millimeter-wavelength filters and measure the atmospheric opacity
polarizing Fourier Transform Spectrometer millimeter-wavelength filters atmospheric opacity
2009/6/25
A polarizing Fourier Transform Spectrometer to characterize millimeter-wavelength filters and measure the atmospheric opacity。