Glossary#

AB#: The AB photometric system defines the zero points of the filters from a constant energy distribution against frequency.
Central wavelength#: The central wavelength between the two points defining the FWHM.
Full Width at Half Maximum (FWHM)#: The full width (in micron) of the filter, measured at half its maximal transmission.
Photometric system#: Defines the reference spectrum used to define the zero points of the filters.
Pivot wavelength#: A useful quantity to convert \(\overline{f_\nu}\) into \(\overline{f_\lambda}\) (see How does it work)
ST#: The ST photometric system defines the zero points of the filters from a constant energy distribution against wavelength.
SVO#: The Spanish Virtual Observatory (SVO) is a project that aims to provide the astronomical community with a set of tools to facilitate the access and analysis of astronomical data.
Vega#: The Vega photometric system defines the zero points of the filters from the spectrum of the star Vega.
ZP#: Zero point of the filter, defining the reference flux, different in each photometric system.